Hydropalat® WE 3650 is a solvent-free, highly effective, low foaming substrate wetting agent for water-based printing inks and coatings. It is a modified alkoxylate that provides excellent substrate wetting and low dynamic surface tension while also stabilizing foam. Performance tests showed it had comparable or better results than other wetting agents in reducing surface tension, improving wetting, and decreasing foam in various ink and coating formulations. Hydropalat® WE 3650 can replace multiple conventional wetting agents and provides benefits such as being solvent-free, APEO-free, and having low odor. It is suitable for applications such as corrugated packaging, industrial printing, and flexible

1. Solvent-free, highly effective, low foaming, substrate
wetting agent for waterbased printing inks and coatings
Formulation Additives
Dispersions & Pigments Division
Hydropalat® WE 3650

2.  Hydropalat® WE 3650 – Solvent-free, highly effective, low foaming,
substrate wetting agent for waterbased printing inks and coatings
 Wetting agents and surface modifiers – Basic definitions
 Wetting agents and surface modifiers – Requirements
 Hydropalat® WE 3650 – Performance
 Summary
 Back-up
2
Content

3. Hydropalat ® WE 3650*
Waterbased substrate wetting agent
 Excellent substrate wetting agent (TMDD modified alkoxylate)
 Low dynamic surface tension in combination with low foaming
 100 % active, liquid product
 Suitable for replacing a range of TMDD solutions**, TMDD ethoxylates and
other alkyl alkoxylates
 Designed for water based ink applications such as corrugated packaging,
industrial printing (wallpaper, flooring) and flexible film packaging
 Suitable for water based industrial coatings, spray and roller applied
* Patent protected
** TMDD = 2,4,7,9-Tetramethyl-5-decindiol
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4.  Hydropalat® WE 3650 - Solvent free, highly effective, low foaming,
substrate wetting agent for waterbased printing inks and coatings
 Wetting agents and surface modifiers – Basic definitions
 Wetting agents and surface modifiers – Requirements
 Hydropalat® WE 3650 – Performance
 Summary
 Back-up
Content
4

5. Wetting Basics
- Main influencing factors
- Surface tension
- Substrate surface energy
Dynamic Wetting
- Related defects
- Craters, edge crawling,
de-wetting, Fish eyes,…
For fast application methods as printing or spraying high mobility towards
this interface is required for substrate wetting agents to be effective.
A good indication of the mobility and the effect of a substrate wetting
agent is given by the dynamic surface tension.
Q
Q
No wetting
Complete wetting
Wetting agents and surface modifiers
Basic definitions
High
mobility
Only partially at interface →
Partial Wetting
Completely at interface →
Complete Wetting
Low
mobility
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6.  Hydropalat® WE 3650 - Solvent free, highly effective low foaming
substrate wetting agent for waterbased printing inks and coatings
 Wetting agents and surface modifiers – Basic definitions
 Wetting agents and surface modifiers – Today’s requirements
 Hydropalat® WE 3650 – Performance
 Summary
 Back-up
Content
6

7. Wetting agents and surface modifiers
A new solution: Hydropalat WE® 3650
Would you like to…
 have a versatile solution for excellent dynamic surface tension reduction and
substrate wetting with low foam stabilization at the same time?
 Reduce your formulation costs and complexity?
 formulate with a single product that replaces a range of wetting agents?
We have the answer: Hydropalat® WE 3650
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8. Hydropalat ® WE 3650
Benefits
Environmental aspects
 Swiss Ordinance List A and/or B
conformance
 Solvent-free
 APEO-free
 Low odor
Performance highlights
 Excellent substrate wetting,
even under high speed application
 Low foaming
100% active, liquid product form
 Replaces multiple dynamic wetting
agents
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9.  Hydropalat® WE 3650 - Solvent free, highly effective low foaming
substrate wetting agent for waterbased printing inks and coatings
 Wetting agents and surface modifiers – Basic definitions
 Wetting agents and surface modifiers – Requirements
 Hydropalat® WE 3650 – Performance
 Summary
 Back-up
Content
9

10. Performance tests – Tested systems
 Systems used for checking performance:
 Demineralized water
 Formulated systems
 High quality ink for paper/label  Joncryl® 90, Joncryl 617
 High quality ink for flexible packaging  Joncryl® FLX 5000
 Stoving enamel  Joncryl® 8300, Luwipal® 066
 Pure resins
 Diluted resins  Joncryl® 90, Joncryl® FLX 5000
 Joncryl® FLX 5010, Joncryl® 538
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11. Performance tests –
Wetting agents used for evaluations
Old name New name Chemistry
Hydropalat® WE 3650 Hydropalat® WE 3650 Modified alkoxylate
Prod A, Prod B, Prod C
Acetylenic diol surfactant solution and
ethoxylated versions thereof
Hydropalat® 130, Prod D,
Prod E
Hydropalat® WE 3130 Alcohol alkoxylate/ethoxylate
Hydropalat® 875 Hydropalat® WE 3475 Sulfosuccinate
Hydropalat® 140 Hydropalat® WE 3240 Silicone surfactant
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12. Performance tests – Test methods
Test Method
Dynamic surface tension Bubble pressure tensiometer
Foam behavior
Product was stirred under high shear and density was determined.
Foam decay after 10 minutes was determined. Product with the highest
density has the lowest amount of foam.
Wetting & leveling Visual assessment. Ink applied on leneta card with wire bar.
Printability Ink was tested on Moser printing press in flexo mode at 100 m/min
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13. 0.000
0.200
0.400
0.600
0.800
1.000
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
1,0% 1,0% 1,0% 1,0% 1,0% 1,0% 1,1%
Hydr WE 3650 Prod A Prod B Prod C Prod D Prod E Hydr WE 3130
Densityinfoamtest(g/ml)
SurfaceTension(mN/m)
DST at
30,0 s
[mN/m]
DST at
10,0 s
[mN/m]
DST at
1,0 s
[mN/m]
DST at
0,100 s
[mN/m]
DST at
0,045 s
[mN/m]
Density
Surface tension and foam stabilization
in demineralized water
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Hydropalat® WE 3650: shows low foaming and low surface tension
Low foaming
Low surface
tension

14. Surface tension and foam stabilization
in an ink formulation for paper/label
14
Hydropalat® WE 3650: shows comparable results to market standards
0.000
0.200
0.400
0.600
0.800
1.000
0
10
20
30
40
50
60
70
80
1,0% 1,0% 1,0% 1,0% 1,0% 1,0% 1,1%
Hydr WE 3650 Prod A Prod B Prod C Prod D Prod E Hydr WE 3130
Densityinfoamtest(g/ml)
SurfaceTension(Dyne)
DST at
10,0 s
[mN/m]
DST at
1,0 s
[mN/m]
DST at
0,100 s
[mN/m]
DST at
0,045 s
[mN/m]
Density (g/ml)

15. Improvement of wetting and gloss
in an ink formulation for paper/label
Hydropalat® WE 3650: shows best results in terms of wetting and
gloss improvement
15
80
82
84
86
88
90
92
94
96
98
100
0
1
2
3
4
5
6
7
8
9
10
1,0% 1,0% 1,0% 1,0% 1,0% 1,0% 1,1%
Hydr WE 3650 Prod A Prod B Prod C Prod D Prod E Hydr WE 3130
gloss(glossunits)
numberofcraters
Craters Gloss
(on Black)
no craters

16. Surface tension and foam stabilization
in an high quality ink for flexible packaging
Hydropalat® WE 3650: shows comparable results to market standards
16
0.000
0.200
0.400
0.600
0.800
1.000
0
10
20
30
40
50
60
70
80
1,0% 1,0% 1,0% 1,0% 1,0% 1,0% 1,1%
Hydr WE 3650 Prod A Prod B Prod C Prod D Prod E Hydr WE 3130
Densityinfoamingtest(g/ml)
Surfacetension(mN/m)
DST at
10,0 s
[mN/m]
DST at
1,0 s
[mN/m]
DST at
0,100 s
[mN/m]
DST at
0,045 s
[mN/m]
Density (g/ml)

17. Surface tension and foam stabilization
in a stoving enamel
17
Hydropalat® WE 3650: shows comparable results to market standards
0.000
0.200
0.400
0.600
0.800
1.000
0
10
20
30
40
50
60
70
80
1,0% 1,0% 1,0% 1,0% 1,0% 1,0% 1,1% 1,0%
Hydr WE
3650
Prod A Prod B Prod C Prod D Prod E Hydr WE
3130
Hydr WE
3240
Densityinfoamingtest(g/ml)
Surfacetension(mN/m)
DST at
10,0 s
[mN/m]
DST at
1,0 s
[mN/m]
DST at
0,100 s
[mN/m]
DST at
0,045 s
[mN/m]
Density in g/ml

18. Surface tension in several resin systems
Hydropalat® WE 3650: shows comparable surface tension to benchmarks
18
0
10
20
30
40
50
60
70
80
1,0% 1,0% 1,0% 1,0% 1,1%
Hydr WE 3650 Prod A Prod B Prod E Hydr WE 3130 Blank
SurfaceTensionat0,045seconds
Joncryl FLX 5000 75% in Demi Water Joncryl FLX 5010 75% in Demi Water
Joncryl 538 75% in Demi Water Joncryl 90 75% in Demi Water

19. Print trials* of a waterbased printing ink for flexible
packaging at 100 m/min in flexo mode on PE-film:
Hydropalat® WE 3650 Product A Product E
Print trials
No wetting agent
Hydropalat® WE 3650: shows excellent print results
* Product A and E were tested against Hydropalat® WE 3650
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20. Time after agitation: 10 min 30 min 60 min
Pure binder
1 % Hydropalat® WE 3650
Effect on foaming
Hydropalat® WE 3650: Shows foam reduction and fast foam decay
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21.  Hydropalat ® WE 3650 - Solvent free, highly effective low foaming
substrate wetting agent for waterbased printing inks and coatings
 Wetting agents and surface modifiers – Basic definitions
 Wetting agents and surface modifiers – Requirements
 Hydropalat® WE 3650 – Performance
 Summary
 Back-up
Content
21

22. Hydropalat® WE 3650*
Waterbased substrate wetting agent
22
 Excellent substrate wetting agent (TMDD modified alkoxylate)
 Low dynamic surface tension in combination with low foaming
 100 % active, liquid product
 Suitable for replacing a range of TMDD solutions**, TMDD ethoxylates and
other alkyl alkoxylates
 Designed for water based ink applications such as corrugated packaging,
industrial printing (wallpaper, flooring) and flexible film packaging
 Suitable for water based industrial coatings, spray and roller applied
* Patent protected
** TMDD = 2,4,7,9-Tetramethyl-5-decindiol

23. With Hydropalat® WE 3650 added to our range
of little helpers ...
... we can help you achieve more!!
little helpers love
great achievements
Formulation Additives by BASF
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24.  This tool provides you the best additive solution for your
challenging formulation task :
• From dispersing agents, wetting agents and surface
modifiers, to defoamers, rheology modifiers and film-forming
agents
 Explore the BASF formulation additives portfolio for the
paints and coatings industry, by :
• Receiving recommendations for your formulation challenges
• Understanding the main benefits of our products by
application and get technical information
• Ordering samples or contacting us for more detailed
consultations
Check out our Solution Finder Tool on www.basf.com/formulation-additives
BASF Solution Finder Tool
for Formulation Additives

26.  Hydropalat ® WE 3650 - Solvent free, highly effective low foaming
substrate wetting agent for waterbased printing inks and coatings
 Wetting agents and surface modifiers – Basic definitions
 Wetting agents and surface modifiers – Requirements
 Hydropalat® WE 3650 – Performance
 Summary
 Back-up
Content
26

27. Chemistry
Product Range
old name
Product Range
new name
Characteristics
Alkoxylated and
ethoxylated
surfactants
Hydropalat® Hydropalat®
low foaming substrate wetting agents for
water borne applications
Silicone
surfactants
Hydropalat®
Efka®
Hydropalat®
Efka®
Substrate wetting agents with generally very
low static surface tension
Sulfosuccinates Hydropalat® Hydropalat®
Cost effective substrate wetting agent with
excellent dynamic surface tension decrease
(Fluorinated )
polyacrylates
Perenol F®
Efka®
Efka®
Hydropalat®
high performance acrylate leveling agents for
water borne and solvent borne applications
Star shaped
Polymers
Starfactant® Hydropalat® Wetting agents based on special polymers
Wetting agents and surface modifiers
BASF portfolio
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28. Disclaimer
 Safety
When handling the mentioned products, please comply with the advice and information given in the safety data sheets and
observe protective and workplace hygiene measures adequate for handling chemicals.
 Note
The data contained in this publication are based on our current knowledge and experience. In view of the many factors that may
affect processing and application of our products, these data do not relieve processors from carrying out their own
investigations and tests; neither do these data imply any guarantee of certain properties, nor the suitability of the product for
a specific purpose. Any descriptions, drawings, photographs, data, proportions, weights, etc. given herein may change
without prior information and do not constitute the agreed contractual quality of the product. The agreed contractual quality
of the product results exclusively from the statements made in the product specification. It is the responsibility of the
recipient of our product to ensure that any proprietary rights and existing laws and legislation are observed.
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