This document discusses Covestro AG's aqueous dispersions product line. It provides an overview of Covestro's mission to invent solutions for customers' needs through a curious and courageous corporate culture. It highlights Covestro's extensive portfolio of aqueous dispersions for coatings and adhesives, including polyurethane, polyacrylate, and polyester dispersions. The dispersions offer eco-friendly and efficient formulation options for various applications like wood coatings, automotive, and more. Covestro aims to enhance customers' process efficiency and provide outstanding quality and global supply security.

1. This information and our technical advice – whether verbal, in writing or by ways of trial – are given in good faith but without
warranty and are subject to change without notice. This also applies where proprietary rights of third parties are involved.
The information is provided by Covestro AG without assumption of any liability. Our advice does not release you from
the obligation to verify the information provided – especially that contained in our safety data and technical information
sheets –, to check for updates of any information provided by us and to test our products as to their suitability for the in-
tended processes and uses. The application, use and processing of our products and the products manufactured by you
on the basis of our technical advice are beyond our control and, therefore, entirely your own responsibility. Our products
are sold in accordance with the current version of our General Conditions of Sale and Delivery.
Covestro Deutschland AG
Business Unit Coatings,
Adhesives and Specialties
D-51365 Leverkusen
Germany
www.coatings.covestro.com
cas-info@covestro.com Edition: 2015 · Order-No.: COV00072994 · Printed in Germany
Dispersions
Bayhydrol® Bayhydur® Bayhytherm® Desmodur®
Impranil® Baybond® Dispercoll® Imprafix®

2. 02 Dispersions Dispersions 03
04 – 05 Our Mission: INVENTING FOR YOU
06 – 07 Aqueous dispersions – an innovative
and eco-friendly platform
08 – 09 Building blocks for efficiency, supply security
and sustainability
Coatings
10 – 13 Bayhydrol® A
Aqueous acrylic polyol dispersions for
waterborne 2K PUR 1K PUR stoving systems
14 – 17 Bayhydrol® UH
Aqueous high molecular weight polyurethane
dispersions
18 – 19 Bayhydrol® U
Aqueous polyurethane-polyol dispersions
20 – 21 Bayhydrol® UV
Radiation curing polyurethane dispersions
22 – 23 Bayhydur® BL, Imprafix®, Baybond® XL
Thermally activated polyurethane hardener
for 1K waterborne stoving systems
22 – 23 Bayhytherm®
Self-crosslinking urethane resins for
1K waterborne stoving systems
24 – 25 Bayhydur®
Waterdispersible polyisocyanates
26 – 27 Desmodur®
Low viscous polyisocyanates
26 – 27 Desmodur®
Flexibilizing polyisocyanates
28 – 31 Impranil®
Aqueous PUR dispersions for textile coatings
30 – 31 Baybond®
PUR dispersions for glass fiber coatings
Adhesives
32 – 35 Dispercoll® U
PUR dispersions for adhesive applications
36 – 37 Dispercoll® C
CR dispersions for adhesive applications
38 – 39 Dispercoll® S
Additives for Dispercoll® C and Dispercoll® U
40 – 41 Dispercoll® BL, Desmodur®, Bayhydur®
Crosslinker for PUR dispersions
42 – 43 Fast-lane access to polyurethane innovations
Contents
Bayhydrol® Bayhydur® Bayhytherm® Desmodur®
Impranil® Baybond® Dispercoll® Imprafix®

3. Flexible Packaging 05
INVENTING
VISIONS
FOR YOU
04 Dispersions
As your leading partner for polyurethane chemistry, we know you are
competing in increasingly challenging environments: Your customers are
becoming more and more demanding in their expectations for quality, dura-
bility, sustainability and aesthetics of products. And they have more choices.
For you this means that cost pressure is rising – while innovation cycles are
becoming faster and faster.
Helping you to turn this challenge into your competitive advantage is the goal
that drives our daily work. We call it: INVENTING FOR YOU. But what exactly
are the basic values underlying this promise? What principles enable us to
improve your productivity, drive sustainability, ensure reliability and co-create
future-proof businesses? First and foremost, we are curious. Because only if
we listen closely to you and ask the right questions, we can respond to your
individual needs with new, creative and unexpected solutions that make a real
difference to you. That’s why inventing for us always starts with thinking about
your unmet business challenges. It requires an indepth understanding of your
needs along the whole value chain. To make sure: What we invent stands the
test of time. Living up to this aspiration requires more than competencies – it
calls for a corporate culture of being courageous. A culture that is defined and
lived by dedicated people who cooperate to push the boundaries of invention
founded on knowledge and experience. Our courage permeates our entire
business – from partnerships to business models. This is also reflected in our
colorful business philosophy. We appreciate partnerships that go beyond
traditional black-and-white ways of acting and thinking. An attitude of open-
ness that invites you to co-create new things – rather enabling you than just
providing. We are optimistic and resourceful in finding solutions that inspire
our customers and partners.
This set of fundamental values adds up to an unrivaled performance orien-
tation to constantly strive for the better, be it through big or small changes.
A true sense of business regardless of function. And a deep commitment to
delivering our promise everyday. Anywhere. Again and again.
INVENTING FOR YOU.

4. Flexible Packaging 07
Pioneering polyurethane chemistry
Ever since the discovery by Otto Bayer of the po-
lyisocyanate polyaddition process in 1937, Bayer –
now Covestro – has pioneered polyurethane
chemistry. 50 years ago, Bayer – now Covestro –
developed the first applications using polyiso-
cyanates for the coatings and adhesives sectors.
We work closely with our customers to systemati-
cally advance the state of the art in polyurethane
technology. Using market-oriented research and
development, we specifically adapt our product
portfolio to our customers’ increasingly stringent
requirements. Together with you, we want to con-
tinue our successful journey along this path.
High-performance waterborne portfolio
As one of the leading producers of coating and
adhesive raw materials, we offer a comprehensive
range of high-grade raw materials for polyure-
thane coatings and adhesives. The demand for
ecological technology is steadily growing and has
greatly accelerated the shift away from solvent-
borne coatings and adhesives to solvent-free and
waterborne systems. With our ecological techno-
logy platform we offer a wide variety of aqueous
dispersions for the coatings and adhesives mar-
ket. Our mission is to provide competitive advan-
tages for our customers: eco-friendly products
with superior quality and performance to enable
highly efficient coating and bonding proces-
ses. We are continuously developing innovative
dispersions to complement our range of water-
borne products based on a variety of chemis-
tries – polyurethane, polyacrylate, and polyester
dispersions. Depending on your requirements
and cost-performance demands, we can offer the
most attractive formulation option based on a 1K
or 2K system.
Main application areas
The most important areas of application for our
waterborne coating raw materials are wood and
furniture coatings, metal and plastic coatings for
industrial applications, high-grade floor coatings,
automotive OEMs, transportation vehicle and
refinishing coatings and textile coatings. More-
over, we offer specialty products for glass fiber
sizes and applications in the paper and printing
ink industries.
As a fast-growing and highly promising segment
for waterborne coatings technology, UV-curing
polyurethane dispersions combine fast curing
with excellent coating properties. Firmly estab-
lished in wood coatings and growing in plastics
coatings, we are continuously extending our
range to include additional applications.
Our waterborne adhesive raw materials are first
choice in heat-activated bonding applications
from 3-D film lamination in the furniture industry
and heat lamination for car interior trims to bond-
ing footwear. Besides the classical foam bonding
market, more and more applications are now
emerging for our waterborne contact adhesives.
Why not check out our waterborne product lines:
Bayhydrol® and Bayhytherm® for coating applica-
tions, Dispercoll® for adhesives applications,
Impranil® for textile applications, and Baybond®
for glass fiber sizes. In combination with our
polyisocyanate crosslinkers Desmodur® and
Bayhydur® we offer superior system solutions for
2K or 1K stoving applications.
Aqueous dispersions –
an innovative and
eco-friendly platform
06 Dispersions

5. 08 Dispersions Dispersions 09
Solutions to enhance your process efficiency
Nowadays, the quality demands made on indust-
rial processes are very high. But at the same time,
there is a clear need to cut costs. Both goals can
be achieved by increasing process efficiency. The
complexity of the processes involved in manufac-
turing coatings and adhesives offers us various
opportunities to enhance process efficiency.
Significant process-optimizing and cost-cutting
gains are possible, for example through faster
curing and shorter process times. At Covestro
we have a wide range of solutions designed to
enhance your process efficiency. Why not take
advantage of our know-how? These solutions will
be good for your bottom line.
Outstanding quality and supply security –
worldwide
Covestro, the world’s leading manufacturer of
aliphatic and aromatic isocyanates, offers an
extensive range of raw materials and services
for manufacturers of coatings and adhesives.
This allows the very latest technology to be used
extremely effectively for a variety of applications.
Thanks to its unique setup and worldwide network
of state-of-the-art production sites, RD facilities
and customer technical centers, industry-leading
supply chain setup, global orientation and local
stocks, extremely large product portfolio, highest
health, safety and environmental (HSE) standards,
as well as tailored supply chain flexibility with
short lead times, Covestro offers the industry
unrivaled supply security and assured quality.
High performance – enabled by nature
Sustainability drives innovation at Covestro. We
are committed to optimizing our manufacturing
processes, reducing the impact of logistics, and
enabling sustainability along the value chains.
Renewable feedstocks offer opportunities for
developing more sustainable building blocks for
coatings and adhesives – with significant po-
tential for reducing the carbon footprint of end
products while also reducing our overall depend-
ence on fossil-based resources. But to make
more sustainable solutions not just possible but
also economically feasible, the performance of
all our feedstocks needs to satisfy high industry
standards. To this end, we are evaluating the use
of renewable raw materials and will enlarge our
product portfolio with new bio-based and mid- to
long-term cost-competitive products, provided
the raw materials become commercially available.
In all these efforts we are committed to focusing
on products that perform at least as well as estab-
lished products but are at the same time more
sustainable.
Building blocks for
efficiency, supply security
and sustainability

6. 10 Dispersions Dispersions 11
Bayhydrol® A
Building blocks for high-end low-VOC coatings systems that
match solventborne performance
Bayhydrol® A 145 45 DMEA SN 4/BG 4 3.3
Suited for high gloss, clear and
pigmented topcoats and primers
Bayhydrol®A 242 42 NH3 0 4 Good chemical resistance, solvent-free
Bayhydrol®A 2427 42 NH3 0 2
In 1K as well as in 2K formulations,
fast drying, good adhesion to plastics,
solvent-free
Bayhydrol® A 2457 41 NH3 0 2.5
Good chemical resistance, outstanding
water resistance, solvent-free
Bayhydrol®A 2470 45
DMEA/
Triethanolamine
SN 4/PnB 4 3.9
For high performance clear-/topcoats
in various applications; excellent gloss,
chemical weathering resistance
Bayhydrol®A XP 2770 44.5 DMEA PnB 3.6 3.9
Low VOC version of A 2470; faster dry-
ing
Bayhydrol®A 2542 50 Triethanolamine PnB 1.1 3.8
High gloss, good chemical and
mechanical resistance, outstanding
water resistance
Bayhydrol®A 2546 41 NH3 0 4.8
Good chemical resistance, outstanding
water resistance, solvent-free, suited
for fast sanding sealers
Bayhydrol®A 2601 45
DMEA/
Triethanolamine
SN 4/PnB 4 3.9
High gloss, high chemical resistance,
very fast drying curing, but with long
pot life
Bayhydrol®A 2646 50 Triethanolamine PnB 1.1 3.8
Faster drying version of A 2542 with
similar property profile
Bayhydrol®A 2651 41 DMEA PnB 3.4 3
Fast drying, high chemical resist-
ance. Excellent grain accentuation
(Anfeuerung) on wood
Bayhydrol®A 2809 XP 48 DMEA PnB 2.0 3.3
Suitable for high gloss, clear and pig-
mented topcoats and primers; low VOC
Bayhydrol®A 2845 XP 40 DMEA PnB 3.2 4.5
High gloss, good chemical and weather
resistance, low thermoyellowing;
low VOC
Bayhydrol®A 2846 XP 40 NH3 — 1.5
Self crosslinking resin for 1K and 2K,
fast drying, good chemical resistance,
high hardness and early sandability
= especially
suitable
= suitable
NON-VOLAT.
CONTENT
APPROX. [%]
CO-SOLVENT
CONTENT [%]
IN SUPPLY FORM
1K AIR-
DRYING
NEUTRAL AGENT OH CONTENT [%]
ON SOLIDS
2K
AUTO
OEM
WOOD,
FURNITURE
PARQUET
TRADE
CORROSION
PROTECTION
1K
STOVING
INDUSTRIAL
METAL
PLASTIC
COATINGS
FLOOR
WALL
PROPERTIES
Aqueous acrylic
polyol dispersions
for waterborne 2K
PUR 1K PUR
stoving systems
AUTO-
REFINISH
LARGE
VEHICLES

7. 12 Dispersions Dispersions 13
Bayhydrol® A
Building blocks for high-end low-VOC coatings systems
that match solventborne performance
NON-VOLAT.
CONTENT
APPROX. [%]
CO-SOLVENT
CONTENT [%]
IN SUPPLY FORM
NEUTRAL.
AGENT
OH
CONTENT [%]
ON SOLIDS
2K
WOOD,
FURNITURE
PARQUET
TRADE
CORROSION
PROTECTION
Bayhydrol®A 2058 42 DMEA BG 2 4.8
Elastic, good adhesion to plastics,
low VOC content
Bayhydrol®A 2139/2 47 DMEA BDG 2.5 3.8 Fatty acid modified, high gloss
Bayhydrol®A 2227/1 42 DMEA BG 8 3.8
For topcoats and primers with low co-solvent
content ( 5 %) and very good overbaking
resistance
Bayhydrol®A XP 2469 45 DMEA PnB 7.9 2.5 High gloss, cost effective
Bayhydrol®A 2695 41
DMEA/
Triethanolamine
PnB 7.2 5
For clear-/topcoats with high hardness, very
high chemical and weather resistance. For
primers and fillers with excellent corrosion
protection properties
Bayhydrol®A 2861 XP 53 DMEA PnB 1.2 3.5
Mainly for air- and forced drying coating
systems with a very high flexibility
= especially
suitable
= suitable
1K
STOVING
AUTO-
REFINISH
LARGE
VEHICLES
INDUSTRIAL
METAL
PLASTIC
COATINGS
PROPERTIES
Aqueous acrylic
polyol dispersions
for waterborne 2K
PUR 1K PUR
stoving systems
AMP = Aminomethyl propanol
BA = Butyl acetate
BDG = Butyl diglycol
BG = Butyl glycol
DMEA = Dimethyl ethanol amine
DPGDA = Dipropylene glycol diacrylate
EA = Ethylacetate
EDIPA = Ethyl diisopropyl amine
IB = Isobutanol
MPA = Methoxypropylacetate
NH3 = Ammonia
NMP = N-Methyl pyrrolidone
SN = Solvent naphtha
TEA = Triethyl amine
PAC = Polyacrylate
PES = Polyester
PGDME = Dipropylenglycol dimethyl ether
PnB = Propylenglycol-n-bulylether
PUR = Polyurethane
VP LS ... XP ... = Trialproducts
X = Xylene
LEGEND

8. 14 Dispersions Dispersions 15
Bayhydrol® UH
Fast-drying polyurethanes for tough, durable and elastic
coatings. Excellent for 1K and 2K formulations.
Bayhydrol®UH 240 40 Na salt 0
For soft-feel coatings and flexibilization of 1K 2K
industrial coatings
Bayhydrol®UH 340/1 40 Na salt 0
Highly elastic for the flexibilization of hard PAC and PUR
dispersions and 1K industrial coatings; for soft-feel
coatings with excellent soft-touch effect
Bayhydrol®UH 650 50 Na salt 0
Air- and forced-drying basecoats for two-layer plastic
coatings; combination resin for soft-feel coatings
Bayhydrol®UH 2305 50 Na salt 0
Highly elastic dispersion for primers and soft-feel
coatings
Bayhydrol®UH 2342 35 TEA NMP 5
Self-crosslinking, fatty acid modified, high black heel
mar resistance and abrasion resistance, solvent-free
alternative (Bayhydrol® UH 2557) available
Bayhydrol®UH 2557 35 TEA 0
Solvent-free alternative to Bayhydrol® UH 2342; reduced
solvent demand in formulation
Bayhydrol®UH 2558 37 TEA 0
High hardness and abrasion resistance, tough and
elastic; well suited for 2K applications
Bayhydrol®UH 2593/1 35 TEA 0
Self-crosslinking, fatty acid modified, high black heel
mar resistance and high hardness, improves drying
speed as co-binder
Bayhydrol®UH 2606 35 EDIPA 0
Broad adhesion profile, very high hardness and tough,
well suited for 2K formulation
Bayhydrol®UH 2952/1 40 DMEA 0
For metallic basecoats and primers; excellent stability
against hydrolysis
Bayhydrol®UA 2856 XP 35 DMEA 0
For air- and forced-drying metallic basecoats, highly
flexible stone chip primers
= especially
suitable
= suitable
Aqueous high
molecular weight
polyurethane
dispersions
CO-SOLVENT
CONTENT[%]
INSUPPLYFORM
NON-VOLAT.
CONTENT
APPROX. [%]
NEUTRAL.
AGENT
AUTO
OEM
WOOD,
FURNITURE
PARQUET
TRADE
AUTO-REFINISH
LARGE VEHICLES
INDUSTRIAL
METAL
PLASTIC
COATINGS
FLOOR
WALL
PROPERTIES

9. 16 Dispersions Dispersions 17
Bayhydrol® UH
Fast-drying polyurethanes for tough, durable and elastic
coatings. Excellent for 1K and 2K formulations.
= especially
suitable
= suitableBayhydrol®UH XP 2592 45 EDIPA 0
Oxidatively drying; free of solvent, drier and anti-skin
agent; wood exterior, industrial coatings with low VOC,
excellent corrosion protection, primers and high gloss
topcoats, crosslinkable e.g. with polyisocyanates,
calculated OH-content: 2.1 % (on solids)
Bayhydrol®UH 2648/1 35 DMEA 0
Elastic even at low temperatures, broad adhesion profile,
especially suitable as co-binder in crosslinking systems
Bayhydrol®UH XP 2660 40 Na salt 0
Combination resin for soft-feel coatings, improved stabili-
ty against hydrolysis, solvents and suntan lotions
Bayhydrol®UH XP 2719 40 TEA 0
Fast build up of high blocking resistance, good chemical
resistance, fast drying, adhesion to aluminium
Aqueous high
molecular weight
polyurethane
dispersions
NON-VOLAT.
CONTENT
APPROX. [%]
CO-SOLVENT
CONTENT [%]
IN SUPPLY FORM
NEUTRAL.
AGENT
AUTO
OEM
WOOD,
FURNITURE
CORROSION
PROTECTION
AUTO-REFINISH
LARGE
VEHICLES
INDUSTRIAL
METAL
PARQUET
TRADE
PLASTIC
COATINGS
PROPERTIES

10. 18 Dispersions Dispersions 19
Bayhydrol® U
Elastic and durable polyurethane dispersions for waterborne
2K 1K PUR stoving systems.
= especially
suitable
= suitable
NON-VOLAT.
CONTENT
APPROX. [%]
CO-SOLVENT
CONTENT [%] IN
SUPPLY FORM
NEUTRAL.
AGENT
WOOD,
FURNITURE
PARQUET
TRADE
OH CONTENT [%]
ON SOLIDS
2K
AUTO
OEM
Bayhydrol®U 241 41 DMEA NMP 4.5 2.5
Elastic polyurethane-polyol, suited
for primers and topcoats
Bayhydrol®U 355 55 DMEA NMP 2 1.5 Very elastic, for soft-feel coatings
Bayhydrol®U XP 2698 52­­ DMEA 0 1.5
NMP- and solvent-free version of
Bayhydrol® U 355
Bayhydrol®U XP 2750 41 DMEA 0 3.6
For high gloss, clear and pigmented
topcoats and primers, outstanding
weather resistance, solvent-free
marked self-healing effect after
scratching
Bayhydrol®U 2757 52 DMEA 0 1.8
For plastic coatings incl. soft-feel,
universal adhesion profile on plas-
tics, solvent-free, good hydrolysis
resistance, long pot life. NMP- and
solvent-free version of U 241
Bayhydrol®U XP 2766 37 DMEA 0 4.0
Very high gloss, especially for
pigmented topcoats. Fast drying,
chemical resistance and hardness
development, low thermoyellowing,
solvent-free
1K
STOVING
AUTO-REFINISH
LARGE VEHICLES
INDUSTRIAL
METAL
PLASTIC
COATINGS
PROPERTIES
Aqueous poly-
urethane-polyol
dispersions

11. 20 Dispersions Dispersions 21
Bayhydrol® UV
Bayhydrol® UV waterborne UV-curing resins:
The most promising technology among the various
environmentally friendly wood and plastic coating systems
are UV-curing PU dispersions, and coatings based on them are
growing fastest in the wood market. Their key property is their
similarity to conventional PU coatings so that similar goals can
be achieved using similar application methods at similar
or faster drying times.
* Flow time
(AFAM 2008/105 03)
–4 mm cup
= especially
suitable
= suitable
TYPE FLOW TIME AT
23 °C (S)*
NON-VOLAT.
CONTENT APPROX. [%]
CORK PVC
Bayhydrol®UV2282 PUR dispersion 39 ≤ 50
High chemical resistance, good grain wetting,
physical drying. For all-around use (multicoat)
Bayhydrol®UV2317 PUR dispersion 37 15–80
High wet film transparency, good grain wetting,
physical drying
Bayhydrol®UV2280 PUR dispersion 39 12–70
Outstanding physical drying, good standard product
for pigmented coatings
Bayhydrol®UVXP 2687 PUR emulsion 49 50–500 mPa • s
Grain wetting, high solids, good adhesion;
especially as primer on wood
Bayhydrol®UV2689/1 PUR dispersion 42 15–50
Highest crosslink density, low physical drying.
Especially for clear coats or single layer
metallic coats
Bayhydrol®UVXP 2690 PUR dispersion 39 20–500 mPa • s
Weather-stable, tough; especially suited for wood exterior
applications, very fast water release
Bayhydrol®UV2720/1 PUR dispersion 40 200 mPa • s
Combines physical drying and highest crosslink density;
especially for pigmented systems; thermoformable
before UV
Bayhydrol®UVXP 2775 PUR dispersion 40 300 mPa • s
Excellent chemical and stain resistance, in white
pigmented topcoats or matte clearcoats
Bayhydrol®UV2792 XP Cationic PUR emulsion 39 50
Excellent grain wetting and tannin blocking, good
adhesion; especially suitable as primer for wood
FURNITURE
PLASTICS PARQUET PROPERTIES
Radiation curing
polyurethane
dispersions

12. 22 Dispersions Dispersions 23
Bayhydur® BL
Imprafix®
Baybond® XL
Bayhytherm®
The key to high coatings performance in 1K applications.
Thermally activated
polyurethane hardener
for 1K waterborne
stoving systems
Self-crosslinking
urethane resins for 1K water-
borne stoving systems
TYPE NEUTRAL.
AGENT
NON-VOLAT.
CONTENT APPROX. [%]
CO-SOLVENT
CONTENT [%] IN
AUTO
OEM
GLASS
COATINGS
Bayhydur® BL 5335 W-based 35 — MPA 4.5/X 4.5 7.1 For glass and can coatings with good alkali resistance
Bayhydur® BL XP 2706 HDI/IPDI-based 40 DMEA 0 8.2
High reactivity (DMP blocked), excellent thermostability
(yellowing) and better chemical resistance
Imprafix®2794 XP HDI-based 38 — 0 12.7
High reactivity (DMP blocked), very good thermostability
(yellowing), good caustic restistance
Baybond®XL 6366 HDI-based 45 — 0 12.5 Medium reactivity (MEKO blocked)
Baybond®XL 825 HDI-based 30 — 0 10.0 Low reactivity (CPL blocked) thermostability (yellowing)
Baybond®XL 7270 HDI-based 30 — 0 13.1 Low reactivity (CPL blocked) thermostability (yellowing)
Baybond®XL 3674 XP HDI-based 30 — 0 10.7 Food contact acc. EC 2011/10
BLOCKED
NCO CONTENT [%]
ON SOLIDS
INDUSTRIAL
METAL
PROPERTIES
= especially
suitable
= suitable
Bayhytherm® 3146
Aliphatic, self-crosslinking baking
urethane resin
46 DMEA NMP 1, SN/MPA 3
For OEM primer surfacers with high solids content; also
for general industrial coatings
Bayhytherm® 3246 XP
Aliphatic, self-crosslinking baking
urethane resin
46 DMEA MPA 2.6/SN 2.4 Further development of Baythytherm® 3146 without NMP

13. 24 Dispersions Dispersions 25
Bayhydur®
Easy mixing and high performance:
surfactant-free hydrophilized poly­­isocyanates.
= especially
suitable
= suitable
TYPE VISCOSITY AT 23 °C
APPROX. [mPa • s]
NON-VOLAT. CONTENT
APPROX. [%]
CO-SOLVENT
CONTENT [%] IN SUPPLY FORM
WOOD,
FURNITURE
PARQUET
TRADE
CORROSION
PROTECTION
AUTO
OEM
Bayhydur®3100 HDI-based 100 2,800 0 17.4 Versatile and economic
Bayhydur®304 HDI-based 100 4,000 0 18.2
Versatile use, improved chemical
resistance and mixing
Bayhydur®305 HDI-based 100 6,500 0 16.2 Easy mixing, high gloss
Bayhydur®401-70 IPDI-based 70 600 30 MPA/X 13.4 Improved hardness, fast drying
Bayhydur®XP 2451/1 HDI-based 100 800 0 20.3
Low viscous, suited for solvent-free
formulations
Bayhydur®XP 2487/1 HDI-based 100 5,400 0 20.6 Highest chemical resistance
Bayhydur®XP 2547 HDI-based 100 650 0 22.5
High chemical resistance, low viscous,
suited for solvent-free formulations
Bayhydur®XP 2655 HDI-based 100 3,500 0 20.8
Highest chemical resistance,
easy mixing, high gloss
Bayhydur®XP 2700 HDI-based 65 77 35 PGDME 16.2
Ready-to-use supply form of
Bayhydur® 305
Bayhydur®XP 2759 IPDI-based 70 6,500 30 MPA 15.7
Fast drying, easy mixing,
high chemical resistance
Bayhydur®2858 XP
HDI-/IPDI-
based
70 500 30 PGDA 19.0
Fast drying, easy mixing,
high chemical resistance
NCO CONTENT
[%] ON SOLIDS
AUTO-REFINISH
LARGE VEHICLES
INDUSTRIAL
METAL
PLASTIC
COATINGS
FLOOR
WALL
PROPERTIES
Waterdispersible
polyisocyanates

14. 26 Dispersions Dispersions 27
Desmodur®
Best in class: lowest viscosity polyisocyanate crosslinkers.
= especially
suitable
= suitable
Low viscous
polyisocyanates
VISCOSITY AT 23 °C
APPROX. [mPa • s]
TYPE
NON-VOLAT. CONTENT
APPROX. [%]
CO-SOLVENT
CONTENT [%]
IN SUPPLY FORM
INDUSTRIAL
METAL
AUTO
OEM
AUTO-REFINISH
LARGE VEHICLES
PROPERTIES
Desmodur® N 3400 HDI uretdione 100 150 0 21.8 Low viscous HDI uretdione
Desmodur®N 3600 HDI trimer 100 1,200 0 23.0 Low viscous HDI isocyanurate
Desmodur®N 3900 HDI trimer 100 730 0 23.5
HDI iminooxadiazindione, “asymmetric
trimer”
Desmodur®XP 2565 IPDI allophanate 80 2,800 BA 20 15.0
IPDI-based, low functionality, improves
hardness and pot life
Desmodur®XP 2860 HDI allophanate 100 500 0 20.0 Low viscous, medium functionality
Desmodur®XP 2840 HDI uretdione/trimer 100 500 0 23.0
HDI uretdione, in combination with other
Desmodur® or Bayhydur® types
NCO CONTENT
[%] ON SOLIDS
PLASTIC
COATINGS
FLOOR
WALL
WOOD,
FURNITURE
PARQUET
TRADE
CORROSION
PROTECTION
Flexibilizing polyisocyanates
Desmodur®N 3800 HDI trimer 100 6,000 0 11.0
For highly flexible coatings; excellent
weather resistance. As a flexibilization
partner to combine with Bayhydur® or
other Desmodur® polyisocyanates

15. 28 Dispersions Dispersions 29
Impranil®
Waterborne, anionic/nonionic aliphatic and aromatic poly­
urethane dispersions for coating textiles resolvent-free and
environmentally friendly. Suitable for all common textile
coating processes in the fields of sports, clothing, fashion
articles, technical items, and general protective equipment.
Aqueous PUR
dispersions
for textile
coatings
0 = moderate
0/+ = satisfactory
+ = good
++ = excellent
TYPE 1K
APPLICATION
NON-VOLAT.
CONTENT APPROX. [%]
LIGHTFASTNESS
DIN 75202
ELONGATION AT BREAK
DIN 53504 [%]
TENSILE
STRENGTH
DIN 53504 [MPa]
100 % MODULUS
DIN 53504 [MPa]
PROPERTIES
Impranil® DLP/DLP-R Polyester 50 7 + 1.3 10 1,600 200–220
Good resistance to hydrolysis, good adhesion, high solids con-
tent, good stirring stability, soft handle
Impranil®DLN-SD Polyester 40 7 0 2 35 1,500 175–200 High flexibility, good washing resistance
Impranil®DLN W 50 Polyester 50 7 0 2 35 1,500 175–200 High flexibility, suitable for mechanical foaming
Impranil®DLS Polyester 50 7 0 2.5 30 1,000 170–180 High flexibility, suitable for mechanical foaming
Impranil®DLV/1
Polyether/
Polycarbonate
40 7 ++ 2 25 1,200 200–220 Outstanding resistance to hydrolysis, crosslinkable
Impranil®DLU
Polyether/
Polycarbonate
60 7 ++ 2 30 900 200–230
High solids content, outstanding resistance to hydrolysis,
excellent mechanical foaming, high scratch resistance
Impranil®DLH Polyester 40 7 0/+ 5 50 1,100 165–175
Free from organic solvents and emulsifiers, high flexibility, high
lightfastness
Impranil®DLC-F/1 Polycarbonate 40 7 ++ 5 50 600 215–225
Excellent resistance to hydrolysis, good resistance to aging, high
scratch resistance
Impranil®DL 2611/1 Polyester 40 7 + 13 40 400 200–220 Dry and transparent finish
Impranil®DL 1380 Polyester 60 7 0 1.4 25 1,400 210–220 High flexibility, suitable for mechanical foaming, high solids
content
Impranil®DL 1554 Polyester 60 7 0 2.5 26 1,000 200–220 Free from organic solvents and emulsifiers, high flexibility,
excellent mechanical foaming
Impranil®DL 1537 Polyester 60 7 + 1.3 15 1,200 200–210 Good resistance to hydrolysis, good adhesion, high solids
content, soft handle
Impranil®LP RSC 3040 Polyester 40 7 0 2 40 1,200 175–200 Flexible, semi-crystalline
Impranil®XP 2772 Polyester 40 7 0 2 40 1,600 175–200 High flexibility, semi-crystalline
Impranil®DLE Polyether 50 7 + 1.5 25 1,600 215–225
Very elastic, good wet adhesion and outstanding washing
resistance
Impranil®DLC-T
Polyester/
Polycarbonate
35 7 ++ 5 6 400 150–160 Good printability, very good hydrolysis resistance, for matt finish
RESISTANCE TO
HYDROLYSIS
DIN EN 12280-3
MELTING
RANGE [°C]

16. 30 Dispersions Dispersions 31
Baybond®
Generally used in manufacturing glass fiber sizes,
Baybond® grades display good compatibility with the
following additives: adhesion promoters, slip agents,
antistatic agents, and flexibilizers.
Aqueous PUR
dispersions for
textile coatings
1K
APPLICATION
TYPE
NON-VOLAT.
CONTENT APPROX. [%]
LIGHTFASTNESS
DIN 75202
ELONGATION AT BREAK
DIN 53504 [%]
TENSILE STRENGTH
DIN 53504 [MPa]
100 % MODULUS
DIN 53504 [MPa]
PROPERTIES
Impranil®DL 519 Polyester 40 7 0 9 40 500 180–200 Flexible, dry touch, alcohol resistance
Impranil®LP DSB 1069 Polyether 50 7 + 2 20 1,200 220–240 High elasticity
Impranil®DL 2077 Polycarbonate 35 7 ++ 20–25 25–30 150–200 220 –230 Excellent hydrolysis resistance
Impranil®DAH Polyether 35 4 + 2 10 700 150–170
Very good adhesion properties on different
kinds of substrates, aromatic PUD
Impranil®DAA Polyether 40 3 + 0.5 1 3,000 140–160 Very soft aromatic PUD for dry Lamination
MELTING
RANGE [°C]
* = crosslinkable
** = Food contact
acc. EC 2011/10
+ = average
++ = good
+++ = very good
++++ = excellent
NON-VOLAT.
CONTENT [%]
CHEMICAL
BASE
HYDROPHILIC
CHARACTER
VISCOSITY,
FLOW TIME (4 mm) s
TENSILE STRENGHT
N/mm2
100 % MODULUS
N/mm2
COMPATIBLE WITH
AMINOSILANE
HYDROLYTIC
RESISTANCE
Baybond®PU 330 Polyester ionic/nonionic 29–31 30 – 140 6.5–8.0 + 0.5 1.0 2,000 yes thermosets
Baybond®PU 403* Polyester ionic/nonionic 38–40 11 – 18 6.0–8.0 +++ 3.4 38.2 1,000 yes thermoplastics
Baybond®PU 404 XP** Polyester nonionic 48–52 500 mPa • s 5.5–7.5 ++ 2.1 37.0 1,300 yes thermoplastics
Baybond®PU 405* Polyether ionic/nonionic 32–35 11 – 18 6.0–8.0 ++++ 4.5 11.0 400 yes thermoplastics
Baybond®PU 406 Polyether nonionic 33–36 10 – 22 5.5–7.5 +++ 3.7 20.0 700 yes thermoplastics
Baybond®PU 571 XP** Polyether nonionic 33–36 10 – 30 5.5–7.5 +++ 3.7 20.0 700 yes thermoplastics
Baybond®PU 407 Polyester ionic/nonionic 39–41 11 – 18 6.3–7.7 ++ 2.7 39.8 1,200 yes thermoplastics
Baybond®PU 409 XP Polyester ionic/nonionic 48–52 90 6.5–8.5 ++ approx. 2.0 approx. 10 approx. 1,000 yes thermoplastics and thermosets
Baybond®VP LS 2277 Polyester ionic/nonionic 39–42 10 – 20 6.5–8.5 ++ 2.1 28.1 1,250 yes thermoplastics
Baybond®XP 2728 Polyether/Polycarbonate ionic/nonionic 58–62 90 7.0–9.0 ++++ 3.1 24.5 910 yes thermoplastics
Baybond®PU 401-A Polyester ionic/nonionic 48–52 ≤ 70 6.5–8.5 ++ 3.0 51 1,200 yes thermoplastics
Baybond®PU 411 XP Polyester ionic/nonionic 38–42 500 mPa • s 6.0–8.0 ++ 3.0 20 1,000 yes thermoplastics
Baybond®PU 7269 Polyether ionic/nonionic 29–31 50 7.5–9.5 +++ 1.0 4 700 yes thermoplastics
Baybond®PU 1810** Polyester nonionic 58–62 100 – 1000 mPa • s 5.0–7.0 +++ 2.6 17 900 yes thermoplastics
RESISTANCE
TO HYDROLYSIS
DIN EN 12280-3
pH ELONGATION AT
BREAK [%]
REINFORCEMENT OF
PUR dispersions
for glass fiber
coatings

17. 32 Dispersions Dispersions 33
Dispercoll® U
As aqueous, anionic dispersions of high molecular weight
polyurethanes, Dispercoll® U grades are especially suitable
for manufacturing heat-activated adhesives. These high-
performance adhesive raw materials deliver outstanding
bonding properties on most synthetic and natural materials.
PUR dispersions
for adhesive
applications
NON-VOLAT.
CONTENT [%]
VISCOSITY
[mPa • s]
pH FURNITURE
LAMINATION
AUTOMOTIVE
INTERIOR
PACKAGINGSHOE
BONDING
Dispercoll® U 42 50 +/– 2 150–800 7.5 +/– 1.5 approx. 80–100
Aqueous anionic dispersion of a high
molecular weight amorphous polyure­
thane. Because of the softness and
flexibility of the polymer film especially
suitable for wet-bonding of textile
substrates
Dispercoll®U 53 40 +/– 1 50–600 7.5 +/– 1.5 approx. 60–70
Aqueous anionic dispersion of a high
molecular weight crystallizing polyure-
thane. Raw material for the formulation of
heat-activated ­adhesives for use in, for
example, the furniture and automotive
­industries
Dispercoll®U 54 50 +/– 1 40–600 7.5 +/– 1.5 approx. 60–70
Aqueous anionic dispersion of a high
molecular weight crystallizing polyure-
thane. Raw material for the formulation of
heat-activated adhesives for use in, for
example, the furniture, automotive and
especially the footwear industries
Dispercoll®U 56 50 +/– 1 50–900 7.5 +/– 1.5 approx. 55–65
Aqueous anionic dispersion of a high
molecular weight crystallizing polyure-
thane. Especially suitable for applications
at low heat activation temperatures in the
furniture and automotive industries
Dispercoll®U 8755 45 +/– 1 1,000 7.5 +/– 1.5 approx. 80–100
Aqueous anionic dispersion of a high
molecular weight crystallizing polyurethane.
Especially suitable for heat activation
above 80 °C. Gives high heat resistance
also when used without crosslinker
RECOMMENDED MIN.
BONDLINE TEMP. [°C]
TEXTILE
BONDING
PROPERTIES
= especially
suitable
= suitable

18. 34 Dispersions Dispersions 35
Dispercoll® U
As aqueous, anionic dispersions of high molecular weight
polyurethanes, Dispercoll® U grades are especially suitable
for manufacturing heat-activated adhesives. These high-
performance adhesive raw materials deliver outstanding
bonding properties on most synthetic and natural materials.
NON-VOLAT.
CONTENT [%]
VISCOSITY
[mPa • s]
pH SHOE
BONDING
PACKAGING
AUTOMOTIVE
INTERIOR
FURNITURE
LAMINATION
Dispercoll®U XP 2643 40 +/– 1 1,000 7.5 +/– 1.5 RT
Aqueous anionic dispersion of a high mole­
cular weight non-­crystallizing polyurethane.
Especially suitable for bonds at low to
moderate temperatures, even at room
temperature
Dispercoll®U XP 2815 35 +/– 1 1,000 7.5 +/– 1.5 RT
Aqueous anionic dispersion of a high mole­
cular weight slowly crystallizing polyure-
thane. Especially suitable for bonds at low
to moderate temperatures or even at room
temperature
Dispercoll®U XP 2682 50 +/– 1 1,000 7.5 +/– 1.5 approx. 50–60
Aqueous anionic dispersion of a lower
molecular weight crystallizing polyurethane.
Especially suitable for applications at low
heat activation temperatures in the furniture
and automotive industries. Good ­wetting
properties due to low melt viscosity
Dispercoll®U XP 2702 47 +/– 1 1,000 7.5 +/– 1.5 approx. 55–65
Aqueous anionic dispersion of a high
molecular weight polyurethane. Especially
suitable for latent-reactive adhesives in
conjunction with deactivated Desmodur® LP
BUEJ 471 formulation
Dispercoll®U XP 2710 45 +/– 1 1,000 7.5 +/– 1.5 approx. 65–75
Aqueous anionic dispersion of a high
molecular weight crystallizing polyurethane.
Especially suitable for heat activation
bonding applications with high initial heat
resistance
Dispercoll®U 2824 XP 38 – 41 50 – 400 7.5 +/– 1.5 approx. 50–60
Aqueous anionic dispersion of a high mole­
cular weight crystallizing polyurethane. The
polymer contains carbolyl groups in the poly-
mer chain that can be crosslinked with the
polycarbodimide from Desmodur® XP 2802
to produce high-qualtiy adhesive bonds
Dispercoll®U 2849 XP 50 +/– 1 2,000 7.5 +/– 1.5 approx. 80–100
Aqueous anionic dispersion of a high
mole­cular weight amorphous polyurethane.
Due to the characteristic polymer proper-
ties Dispercoll® U 2849 XP is suitable for
adhesive applications with improved climate
resistance
RECOMMENDED
MIN. BONDLINE
TEMP. [°C]
TEXTILE
BONDING
PROPERTIES
= especially
suitable
= suitable
PUR dispersions
for adhesive
applications

19. 36 Dispersions Dispersions 37
Dispercoll® C
The unique property profile of Dispercoll® C waterborne
contact adhesives makes these products indispensable for a
large number of applications, e.g. as adhesives and sealants for
shoes, in the transportation, automotive and construction in-
dustries, in packaging, furniture, foamed materials, leather and
rubber bonding. When properly formulated, Dispercoll® C can
be used to substitute solventborne adhesives in a wide range
of applications with no loss of performance, while at the same
time bringing great improvements with respect to environmen-
tal, handling, and workplace safety issues.
NON-VOLAT.
CONTENT [%]
pH
CRYSTALLIZATION SHOE BONDING
(CAPS, INNER SOLE)
BUILDING/
CONSTRUCTION
FOAM
BONDING
FURNITURE
LAMINATION
Dispercoll®C 74 58 +/– 0.5 13.0 +/– 0.5 medium medium
Aqueous anionic dispersion of a 2-chlorobutadiene
polymer with a medium rate of ­crystallization, good
heat resistance and long open time. Dispercoll® C
74 is suitable for the formulation of aqueous con-
tact adhesives
Dispercoll®C 84 55 +/– 0.5 13.0 +/– 0.5 fast very low
Aqueous anionic dispersion of a 2-chlorobutadiene
polymer with a high rate of ­crystallization, fast
bond formation, good ­contactibility and high
bond strength. Dispercoll® C 84 is suitable for
the formulation of aqueous contact adhesives
Dispercoll®C 2325 55 +/– 1.0 12.0 +/– 1.0 fast low
Aqueous anionic dispersion of a 2-chlorobutadiene
polymer with a high rate of ­crystallization, fast
bond formation, good ­contactibility and high bond
strength in combination with ­excellent storage
stability and high crosslinking density with iso-
cyanates. Dispercoll®
C 2325 is suitable for the
formulation of aqueous contact adhesives
Dispercoll®C VP LS 2372/1 58 +/– 1.0 13.0 +/– 0.5 slow low
Aqueous anionic dispersion of a 2-chlorobutadiene
polymer with a very low rate of ­crystallization, good
contactibility and good wet tack in combination
with excellent storage stability and high crosslink-
ing density with isocyanates. Dispercoll® C VP LS
2372/1 is suitable for the formulation of aqueous
contact adhesives. Dispercoll® C VP LS 2372/1 is
typically used as blend component to improve wet
tack
Dispercoll®C XP 2694 29 +/– 1.0 9.0 +/– 0.5 very fast very low
Aqueous anionic dispersion of a 2-chlorobutadiene
polymer with a very high rate of ­crystallization,
very fast bond formation and good contactibility.
Can be used without further formulation as contact
adhesive or adhesive primer
GEL
CONTENT
TEXTILE
BONDING
PROPERTIES
= especially
suitable
= suitable
CR dispersions
for adhesive
applications

20. 38 Dispersions Dispersions 39
Dispercoll® S
The new Covestro Dispercoll® S nano silica dispersions display
some unique synergistic properties if used in combination
with Dispercoll® C or U. Formulated with a Dispercoll® C grade
in combination with ZnO, the Dispercoll® S grades can act as
thickeners, yield high reinforcement, and deliver high heat
resistance.
TYPE PARTICLE SIZE
[nm]
NON-VOLAT.
CONTENT [%]
SHOE BONDING
(CAPS, INNER SOLE)
BUILDING/
CONSTRUCTION
PROPERTIESSPEC. SURFACE
[m2
/mg]
FURNITURE
LAMINATION
SPRAY ADHESIVE
FOR FOAM TO FOAM
Dispercoll®S 5005 Nano SiO2 dispersion 50 +/– 1 55 50 1.390
Nano SiO2
dispersion with small particle size.
Formulated in combination with Dispercoll® C
and ZnO ­dispersion, a medium viscosity spray-
able adhesive with improved inital tack and
bonding strength is obtained
Dispercoll®S 4510 Nano SiO2 dispersion 45 +/– 1 30 100 1.340
Nano SiO2
dispersion with small particle size.
Formulated in combination with Dispercoll® C
and ZnO ­dispersion, viscosities can be adjusted
in a broad range simultaneously improving sta-
bility, inital tack and bonding strength
Dispercoll®S 4020 Nano SiO2 dispersion 40 +– 1 15 200 1.295
Nano SiO2
dispersion with very small par-
ticle size. Formulated in ­combination with
Dispercoll® C and ZnO dispersion, highly thixo­
tropic adhesive formulations can be obtained
simultaneously improving ­initial tack, bonding
strength and heat resistance
Dispercoll®S 3030 Nano SiO2 dispersion 30 +/– 1 9 300 1.208
Nano SiO2
dispersion with very small par-
ticle size. Formulated in ­com­bination with
Dispercoll® C and ZnO dispersion, up to paste-
like adhesive formulations can be obtained
simultaneously improving ­initial tack, bon­ding
strength and delivering oustanding heat
resistance
Dispercoll®S 2020 XP Nano SiO2 dispersion 20 +/– 1 15 200 1.13
Nano SiO2
dispersion with very small par-
ticle size. Formulated in combination with
Dispercoll® C for 1K sprayable formulations
with low pH, medium viscosity, and improved
initial tack
DENSITY
[g/m3
]
TEXTILE
BONDING
= especially
suitable
= suitable
Additives for
Dispercoll® C
and Dispercoll® U

21. 40 Dispersions Dispersions 41
Dispercoll®
Desmodur®
Bayhydur®
Polyisocyanate crosslinkers for adhesives applications.
= especially
suitable
= suitable
Crosslinker for latent
reactive polyurethane
dispersions
NCO-CONTENT
[%]
TYPE NON-VOLAT. CONTENT
APPROX. [%]
PROPERTIES
Dispercoll® BL XP 2514 TDI-dimer suspension 7.5–10.0 40
.
/. Crosslinker for latent-reactive PUD
Desmodur® LP BUEJ 471 Micronized IPDI-isocyanurate 16.3–17.7 100
.
/. Micronized crosslinker for latent-reactive PUD
VISCOSITY AT
23 °C [mPa • s]
Crosslinker for
adhesive dispersions
Desmodur® DN Hydrophilic modified isocyanate 21.8 100 1,250 Low hydrophilicity
Desmodur® DA-L Hydrophilic modified isocyanate 20.0 100 3,000 Low hydrophilicity
Bayhydur® 3100 Hydrophilic modified isocyanate 17.4 100 2,800 High hydrophilicity
Bayhydur® 304 Hydrophilic modified isocyanate 18.2 100 4,000 In compliance with U.S. FDA’s guideline “Title 21 CFR:” Section 175.105 “Adhesives”
Desmodur® XP 2802
Dispersion of hydrophilic
polycarbodiimid
approx. 1 mmol
– N = C = N –/g
40 30
Crosslinker for carboxylate functionalized dispersions, suitable for 2K formulations with
long pot life
Crosslinker for
CR dispersions
TYPE VISCOSITY AT 23 °C
[mPa • s] APPROX.
NON-VOLAT.
CONTENT [%]
SPRAY ADHESIVE
FOR FOAM TO FOAM
TEXTILE BONDING
(CAPS, INNER SOLE)
PROPERTIES
SHOE
BONDING
NCO-CONTENT
ON SOLIDS [%]
Bayhydur® 401-70 IPDI-based hydrophilic polyisocyanate 70 in MPA/X 600 13.4
Used in CR-dispersion formulations,
yields a high chemical crosslinking
density to achieve excellent heat
resistance. Featuring very long pot
life and excellent storage stability
FURNITURE
LAMINATION
BUILDING/
CONSTRUCTION

22. 42 Dispersions Dispersions 43
At Covestro innovation is in our DNA.
Ever since Otto Bayer discovered
polyurethanes in 1937, we have been
driving polyurethane innovations in
coatings and adhesives as well as
in other application areas. As our
partner you enjoy fast-lane access
to polyurethane innovations, and
can help us in developing the next
generation of polyurethanes to meet
the industry’s upcoming challenges
and needs. What can we offer you?
• Powerful know-how on both
established and new polyisocya-
nates, as well as on new poly­
urethane hybrid technologies.
• The prospect of new application
technologies to enable efficient
processes.
• More sustainable, biomass- or
CO2
-based materials that do not
sacrifice high performance.
Join us to shape the future!
Fast-lane access
to polyurethane
innovations