DONIT_Gasket sheets_Brochure.compressed

We are a true
partner for
your success.
- p.1
Choose from a wide
variety of materials
to ensure the perfect
solution.
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Quality and
experience you
can rely on.
DONIT_Gasket sheets_Brochure2015.indd 1 1/20/15 11:55 AM

One company - two divisions:
DONIT Gasket Sheets and
DONIT Industrial Sealing Solutions
About DONIT Tesnit®
Sealing technologies
DONIT Tesnit®
is one of the leading gasket, gasket
sheet and sealing solution providers. We offer the best
solutions for all of your sealing challenges. This is
achieved through an understanding of our customer’s
needs, our high quality products, extensive know-how in
application engineering and customer driven innovation.
We are a true partner for your success.
Our customer centric approach is based on strong R&D,
and is supported by four pillars: experienced production
in the EU, quality and safety assurance, application
engineering and training.
Made in the EU with a presence in more than 65 countries supplying consistent quality to
the world.
Raw material
provider
Semi final
products
Distributors /
Agents
Cutters /
Gasket
producers
Retailers,
Resellers
End users
1

Certified quality
We assure high quality, environmentally friendly products
to our customers. Quality and care for the environment is
embedded in both our minds and our organization. We are
certified by international standards ISO 9001 and 14001.
We also ensure that product quality and safety is
in accordance with a number of widely recognized
international standards such as:
DVGW (DIN 3535-6, VP 401)
SVGW (DIN 3535-6)
DVGW KTW
DVGW W270
BAM
WRAS
TA-Luft (VDI 2440)
API 6FA / API 607
ABS
Germanischer Lloyd
DONIT
A perfect fit
DONIT gasket sheets and solutions are a high quality
product, certified by industry standards. Quality is our
foundation; improvement and innovation are our driving
force.
DONIT is a proactive partner that co-operates with
customers to both help develop their knowledge and to
offer the optimum high quality product and solution. Thus
we provide our customers with the peace of mind that
enables them to focus on their core business.
We constantly develop our products and services,
we innovate and above all, by offering the latest in
industry trends, we meet out customers’ concerns and
challenging requirements. Our goal is to provide reliable
and efficient solutions that enable our customers to
operate an environmentally safe business.
What can we do for you?
Products: Compressed non-asbestos sealing materials
(BA), engineered graphite sealing materials, flexible
graphite sealing materials and PTFE sealing materials.
Additional services: Training, R&D and application
engineering.
Industries: Pipeline systems, gas supply, steam supply,
potable water supply, shipbuilding, machine building,
chemical industry, refineries, power plants, valves,
pressure regulators, compressors, pumps.
2

Strong R&D, with a focus on innovation
Well-equipped, state of the art laboratories, multidisciplinary R&D teams and collaboration with external partners,
enables us to optimize sealing materials and gaskets to meet your most challenging needs.
Training for our customers
The DONIT Tesnit®
Authorized Training Centre delivers
intensive, interactive and case study driven education
programs to our customers. This training provides the detailed
knowledge utilised in the selection of the optimum gasket.
Day 1 - module 1: Sheet presentation
Day 2 - module 2: Gasket products, technology
and services offered
3

Products
DONIT Gasket Sheets
SHEETS BY PERFORMANCE
TESNIT®
DONIFLEX®
GRAFILIT®
DONIFLON
FIBER SHEETS FIBER REINFORCED
GRAPHITE SHEETS
GRAPHITE SHEETS PTFE SHEETS
* Suitable for agressive media.
600 °C
500 °C
400 °C
300 °C
200 °C
100 °C
TESNIT
BA-50
TESNIT
BA-U
TESNIT
BA-55
TESNITBA-CF
TESNITBA-GL
TESNITBA-R300/R302
DONIFLEX
GRAFILIT
MICALIT
TESNIT
BA-202
TESNIT
BA-203
DONIFLON*
MICALIT
HIGH TEMPERATURE
RESISTANT MATERIALS
4

TESNIT®
BA-202 is our standard gasket sheet, suitable for sealing applications at low operating conditions.
PROPERTIES
Composition
Organic fibers bonded with NBR.
Available with wire reinforcement on request.
Colour Pink / Red
Properties
Very good chemical resistance against gases, oils and
fuels. Also highly water resistant.
Appropriate industries
Pipeline systems, water supply industry, machine
building.
SURFACE TREATMENTS DIMENSIONS OF STANDARD SHEETS
Surface treatment is 2AS.
Other surface treatments including graphite and
PTFE are available on request.
Sheet size (mm): 1500 x 1500 | 3000 x 1500 | 4500 x 1500
Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0
Other dimensions and thicknesses are available on request.
TECHNICAL DATA Typical values for a thickness of 2 mm
Density DIN 28090-2 g/cm3
1.8
Compressibility ASTM F36J % 9
Recovery ASTM F36J % 60
Tensile strength ASTM F152 MPa 8
Stress resistance DIN 52913
16 h, 50 MPa, 175 °C MPa 20
16 h, 50 MPa, 300 °C MPa /
Specific leak rate DIN 3535-6 mg/(s.m) 0.06
Thickness increase ASTM F146
Oil IRM 903, 5 h, 150 °C % 10
ASTM Fuel B, 5 h, 23 °C % 10
Compression modulus DIN 28090-2
At room temperature: εKSW
% /
At elevated temperature: εWSW/200 °C
% /
Percentage creep relaxation DIN 28090-2
At room temperature: εKRW
% /
At elevated temperature: εWRW/200 °C
% /
Max. operating conditions
Peak temperature °C/°F 180/356
Continuous temperature °C/°F 140/284
- with steam °C/°F 120/248
Pressure bar/psi 40/580
P-T DIAGRAM
EN 1514-1, Type IBC, PN 40, DIN 28091-2 / 3.8, 2.0 mm General suitability using common installation practices under the condition of chemical
compatibility.
Maximum performance is ensured through appropriate measures for joint design and gasket
installation. Consultation is recommended.
Limited application area. Technical consultation is mandatory.
Pressure - Temperature diagrams are the most current method for determining the suitability of
a gasket material in a known application. Maximum figures for temperature and pressure can be
misleading. Max. temperature and max. pressure represent maximum values and should not be
used simultaneously. They are given only for guidance, since these max. values depend not only
on the type of gasket material used but also on the assembly conditions. Please use the Pressure
- Temperature diagrams to check the suitability of the chosen gasket material for your application
(combination of pressure and temperature).
PRESSURE[bar]
TEMPERATURE [˚C]
0
10
20
30
40
50
-50 0 50 100 150 200
5
TESNIT®
BA-202

TESNIT®
BA-203 is a special gasket material based on aramid fibers and NBR rubber, suitable for lower to medium
operating conditions.
PROPERTIES
Composition
Aramid fibers bonded with NBR.
Colour Yellow
Properties Good resistance to water, gases, oils and fuels.
Appropriate industries Shipbuilding, water supply industry.
Approvals Germanischer Lloyd
Sheet size (mm): 1500 x 1500 | 3000 x 1500 | 4500 x 1500
Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0
1.8
16 h, 50 MPa, 175 °C MPa 25
16 h, 50 MPa, 300 °C MPa /
Oil IRM 903, 5 h, 150 °C % 8
ASTM Fuel B, 5 h, 23 °C % 10
% /
% /
% /
% /
6
General suitability using common installation practices under the condition of chemical
compatibility.
TESNIT®
BA-203
P-T DIAGRAM
EN 1514-1, Type IBC, PN 40, DIN 28091-2 / 3.8, 2.0 mm
PRESSURE[bar]
TEMPERATURE [˚C]
0
10
20
30
40
50
60
-50 0 50 100 150 200

TESNIT®
BA-50 is a special gasket material suitable for general applications.
PROPERTIES
Composition
Aramid fibers bonded with NBR.
Colour Light green
Properties
Excellent chemical resistance and good dynamic
resistance. Good resistance to water, gases, fuels and
oils.
Gas supply, food industry, chemical industry, potable
water supply, shipbuilding.
Approvals
DIN-DVGW DIN 3535-6, DVGW KTW, Germanischer Lloyd,
TA-Luft (VDI 2440), WRAS, EC 1935/2004, DVGW W270
Sheet size (mm): 1500 x 1500 | 3000 x 1500 | 4500 x 1500
Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0
1.8
16 h, 50 MPa, 175 °C MPa 25
16 h, 50 MPa, 300 °C MPa /
Oil IRM 903, 5 h, 150 °C % 8
ASTM Fuel B, 5 h, 23 °C % 10
% /
% /
% /
% /
7
TESNIT®
BA-50
P-T DIAGRAM
PRESSURE[bar]
TEMPERATURE [˚C]
0
10
20
30
40
50
60
70
80
90
-50 0 50 100 150 200 250
compatibility.

TESNIT®
BA-55 is a standard gasket material made of special synthetic fibers, which makes it very suitable for use with
higher thermal loads.
PROPERTIES
Composition
Special synthetic fibers bonded with NBR.
Colour Dark green
Properties
Excellent thermal properties and very good steam
resistance.
Potable water supply, gas supply, pumps, radiators,
steam supply.
Approvals
BAM (Oxygen), DIN-DVGW DIN 3535-6, DVGW KTW,
DVGW W270, DVGW VP 401, DVGW VP 401 (5 bar),
EC 1935/2004
Sheet size (mm): 1500 x 1500 | 3000 x 1500 | 4500 x 1500
Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0
1.8
16 h, 50 MPa, 175 °C MPa 35
16 h, 50 MPa, 300 °C MPa 30
Oil IRM 903, 5 h, 150 °C % 8
ASTM Fuel B, 5 h, 23 °C % 10
% 7.6
% 11.4
% 3.2
% 0.8
8
compatibility.
TESNIT®
BA-55
P-T DIAGRAM
PRESSURE[bar]
TEMPERATURE [˚C]
0
20
40
60
80
100
-50 0 50 100 150 200 250 300

TESNIT®
BA-U is a general purpose gasket material which offers a solution for almost any need. BA-U is one of the most
approved gasket materials available on the market.
PROPERTIES
Composition
Aramid fibers bonded with NBR. Available with wire or
expanded steel reinforcement on request.
Colour Blue
Properties
Good chemical resistance, good mechanical and thermal
properties and low gas permeability.
Food industry, gas supply, potable water supply,
compressors, pumps, general purpose usage.
Approvals
BAM (Oxygen), DIN-DVGW DIN 3535-6,
SVGW DIN 3535-6, DVGW VP 401, DVGW KTW,
DVGW W270, TA-Luft (VDI 2440), WRAS, Germanischer
Lloyd, ABS, EC 1935/2004, AGA 8140 G (Class III)
Sheet size (mm): 1500 x 1500 | 3000 x 1500 | 4500 x 1500
Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0
1.7
16 h, 50 MPa, 175 °C MPa 27
16 h, 50 MPa, 300 °C MPa 23
Oil IRM 903, 5 h, 150 °C % 2
ASTM Fuel B, 5 h, 23 °C % 5
% 9.5
% 16.1
% 4.7
% 0.8
TESNIT®
BA-U
P-T DIAGRAM
PRESSURE[bar]
TEMPERATURE [˚C]
0
20
40
60
80
100
-50 0 50 100 150 200 250
compatibility.
9

TESNIT®
BA-CF is a soft, high grade carbon fiber gasket material and is the answer to the growing demands of
aggressive chemical and higher thermal loads.
PROPERTIES
Composition
Carbon fibers bonded with NBR. Available with wire or
Colour Black
Properties
Excellent resistance to steam and strong alkaline
media.
Appropriate industries Chemical industry, petrochemicals, steam supply.
Approvals
BAM (Oxygen), DIN-DVGW DIN 3535-6, DVGW VP 401,
DVGW KTW, Germanischer Lloyd
Sheet size (mm): 1500 x 1500 | 3000 x 1500 | 4500 x 1500
Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0
1.7
16 h, 50 MPa, 175 °C MPa 35
16 h, 50 MPa, 300 °C MPa 30
Oil IRM 903, 5 h, 150 °C % 5
% 7.3
% 8.3
% 3.6
% 1.0
10
TESNIT®
BA-CF
compatibility.
P-T DIAGRAM
PRESSURE[bar]
TEMPERATURE [˚C]
0
50
100
150
-50 0 50 100 150 200 250 300 350

11
TESNIT®
BA-M is an environmentally friendly gasket material recommended for all applications where thermal cycling is
involved and offers excellent torque retention along with long term stability, low maintenance costs and high reliability.
PROPERTIES
Composition
Aramid and engineered mineral fibers bonded with NBR.
Available with wire or expanded steel reinforcement on
request.
Colour Grey / Green
Properties
Excellent resistance to steam, oils, fuels, gases, freons,
solvents, non-aggressive chemicals, hot water and other
substances.
Heat exchangers, boilers, radiators, steam supply,
power plants.
Approvals
DVGW KTW, TA-Luft (VDI 2440), WRAS, EC 1935/2004
Sheet size (mm): 1500 x 1500 | 3000 x 1500 | 4500 x 1500
Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0
1.7
16 h, 50 MPa, 175 °C MPa 35
16 h, 50 MPa, 300 °C MPa 27
Oil IRM 903, 5 h, 150 °C % 5
% 10.8
% 11.0
% 4.1
% 0.8
TESNIT®
BA-M
compatibility.
P-T DIAGRAM
PRESSURE[bar]
TEMPERATURE [˚C]
0
50
100
150
-50 0 50 100 150 200 250 300 350

12
TESNIT®
BA-GL is an excellent soft gasket material composed of selected glass fibers, suitable for sealing of a broad
range of joints at high temperatures.
PROPERTIES
Composition
Glass fibers bonded with NBR. Available with wire or
Colour Green
Properties
Superior torque retention and good steam resistance.
Excellent thermal resistance in combination with low gas
permeability.
Steam supply, potable water supply, gas supply,
shipbuilding, power plants.
Approvals
DIN-DVGW DIN 3535-6, DVGW VP 401, DVGW KTW,
BAM (Oxygen), WRAS, TA-Luft (VDI 2440), API 607,
Germanischer Lloyd, EC 1935/2004
Sheet size (mm): 1500 x 1500 | 3000 x 1500 | 4500 x 1500
Thickness (mm): 0.5 | 1.0 | 1.5 | 2.0 | 3.0
1.8
16 h, 50 MPa, 175 °C MPa 38
16 h, 50 MPa, 300 °C MPa 33
Oil IRM 903, 5 h, 150 °C % 3
% 6.9
% 7.9
% 3.3
% 1.2
TESNIT®
BA-GL
P-T DIAGRAM
PRESSURE[bar]
TEMPERATURE [˚C]
0
50
100
150
-50 0 50 100 150 200 250 300 350
compatibility.

TESNIT®
BA-R is a soft gasket material with a special type of wire reinforcement, utilised in many applications with high
thermal and mechanical service conditions.
PROPERTIES
Composition Aramid fibers bonded with NBR, wire reinforcement.
Colour Black
Properties
Excellent mechanical, dynamic and thermal resistance
and blow-out safety.
Appropriate industries Automotive industry, petrochemicals, shipbuilding.
Approvals Germanischer Lloyd, BAM (Oxygen)
Surface treatment is 2G. Sheet size (mm): 1000 x 1500 | 1500 x 1500
Thickness (mm): 1.0 | 1.5 | 2.0 | 3.0
TECHNICAL DATA Typical values for a thickess of 2 mm
2.0
16 h, 50 MPa, 175 °C MPa 30
16 h, 50 MPa, 300 °C MPa 25
Specific leak rate DIN 3535-6 mg/(s.m) /
Oil IRM 903, 5 h, 150 °C % 8
ASTM Fuel B, 5 h, 23 °C % /
% /
% /
% /
% /
13
TESNIT®
BA-R
P-T DIAGRAM
PRESSURE[bar]
TEMPERATURE [˚C]
0
20
40
60
80
100
120
140
-50 0 50 100 150 200 250
compatibility.

TESNIT®
BA-REM is a reinforced gasket material for use in highly demanding applications. It has excellent sealing and
outstanding thermo-mechanical properties.
PROPERTIES
Composition
A balanced mixture of fibers. Available with wire or
Colour Green
Properties
This material combines a high blow-out resistance with
very high pressure, temperature and surface stress
resistance. Whilst at the same time maintaining a high
torque retention with good chemical resistance.
Appropriate industries Gas supply, steam supply, power plants.
Sheet size (mm): 1000 x 1500 | 1500 x 1500
Thickness (mm): 1.0 | 1.5 | 2.0 | 3.0
TECHNICAL DATA Typical values for a thickness of 1.5 mm
2.2
16 h, 50 MPa, 175 °C MPa 43
16 h, 50 MPa, 300 °C MPa 38
Oil IRM 903, 5 h, 150 °C % 5
% 6.5
% 5.8
% 3.2
% 0.5
14
TESNIT®
BA-REM

TESNIT®
BA-R300 is a specially designed gasket material reinforced by an extremely strong wire mesh, offering
outstanding dynamic and thermal properties.
PROPERTIES
Composition
Inorganic fibers, NBR bonded with a strong wire mesh
reinforcement.
Colour Black
Properties Extreme dynamic and thermal resistance.
Surface treatment is 2G. Sheet size (mm): 500 x 1400 | 1000 x 1400
Thickness (mm): 0.7 | 1.0 | 1.2 | 1.4 | 2.0 | 2.5 | 3.0
Other dimensions and thicknesses are available on
request.
3.2
Tensile strength ASTM F152 MPa /
16 h, 50 MPa, 175 °C MPa 46
16 h, 50 MPa, 300 °C MPa 40
Oil IRM 903, 5 h, 150 °C % 5
% /
% /
% /
% /
15
TESNIT®
BA-R300

TESNIT®
BA-R302 is a further development of the reinforced gasket with an extreme reinforcement assuring superior
thermo-mechanical properties. It was designed for even the most demanding applications.
PROPERTIES
Composition
Inorganic fibers, NBR bonded with a strong wire mesh
reinforcement.
Colour Black
Properties
Superior dynamic and thermal resistance. Excellent
blow-out safety.
Surface treatment is 2G. Sheet size (mm): 500 x 1400
Thickness (mm): 1.4 | 1.6
Other dimensions and thicknesses are available on
request.
3.7
Tensile strength ASTM F152 MPa /
16 h, 50 MPa, 175 °C MPa 48
16 h, 50 MPa, 300 °C MPa 45
Oil IRM 903, 5 h, 150 °C % 5
% /
% /
% /
% /
16
TESNIT®
BA-R302

Chemical resistance chart for focus products
The recommendations made here are intended to be a guideline for the selection of the
suitable gasket quality. Because the function and durability of the products depend upon
a number of factors, the data may not be used to support any warranty claims.
Recommended
Recommendation depends on operating conditions
Not recommended
All information, and data quoted are based on years of experience in production and operation of sealing elements.
The data may not, be used to support any warranty claims.This edition cancels all previous issues, and is a subject
to change without further notice.
BA-202
BA-203
BA-50
BA-55
BA-U
BA-CF
BA-GL
BA-M
BA-R
BA-REM
Acetamide
Acetic acid 10%
Acetic acid 100%
Acetic ester
Acetone
Acetylene
Adipic acid
Air
Alum
Aluminium acetate
Aluminium chlorate
Aluminium chloride
Ammonia
Ammonium bicarbonate
Ammonium chloride
Ammonium hydroxide
Amyl acetate
Aniline
Asphalt
Barium chloride
Benzene
Benzoic acid
Boric acid
Borax
Butane
Butyl alcohol
Butyric acid
Calcium chloride
Calcium hydroxide
Carbon dioxide
Chloroform
Chlorine, dry
Chlorine, wet
Chromic acid
Citric acid
Copper acetate
Creosote
Cresol
Cyclohexanol
Cyclohexanone
Decalin
Dibenzyl ether
Dimethyl formamide
Dowtherm
Ethane
Ethyl acetate
Ethyl alcohol
Ethyl chloride
Ethylene
Ethylene glycol
Formic acid 10%
Formic acid 85%
Formaldehyde
Freon 12
Freon 22
Fuel oil
Gasoline
Glycerine
Heptane
Hydraulic oil (Mineral)
Hydraulic oil (Phosphate ester type)
Hydraulic oil (Glycol based)
Hydrazine
Hydrochloric acid 20%
Hydroﬂuoric acid 10%
Hydrogen
BA-202
BA-203
BA-50
BA-55
BA-U
BA-CF
BA-GL
BA-M
BA-R
BA-REM
Isobutane
Isooctane
Isopropyl alcohol
Kerosene
Lead acetate
Lead arsenate
Magnesium sulphate
Malic acid
Methane
Methanol
Methyl chloride
Methylene dichloride
Methyl ethyl ketone
Milk
Mineral oil type ASTM no.1
Naphtha
Nitric acid 20%
Nitric acid 40%
Nitric acid 96%
Nitrobenzene
Nitrogen
Octane
Oleic acid
Oleum
Oxalic acid
Oxygen
Palmitic acid
Pentane
Perchloroethylene
Phenol
Phosphoric acid
Potassium acetate
Potassium bicarbonate
Potassium carbonate
Potassium chloride
Potassium dichromate
Potassium hydroxide
Potassium iodide
Potassium nitrate
Potassium permanganate
Propane
Pyridine
R 134a
Salicylic acid
Silicone acid
Soap
Sodium aluminate
Sodium bicarbonate
Sodium bisulphite
Sodium carbonate
Sodium chloride
Sodium cyanide
Sodium hydroxide
Sodium sulphate
Sodium sulphide
Starch
Steam
Stearic acid
Sugar
Sulphuric acid 20%
Sulphuric acid 96%
Tar
Tartaric acid
Toluene
Transformer oil
Trichlorethylene
Water
White spirit
Xylene
Carbon disulphide
17
The recommendations made here are intended as a guideline for the
selection of a suitable gasket. The function and durability of these
products depends upon a number of factors.
Chemical resistance chart for focus products

18
Doniflon is a range of high grade gasket materials based on modified PTFE or multidirectional expanded PTFE and it has
many general application possibilities.
PROPERTIES
Composition PTFE.
Colour White, Blue, Fawn
Properties
Excellent chemical resistance. Versatile use with a wide
range of chemicals (depending on the chosen Doniflon
material).
Chemical industry, food industry, pharmaceutical
industry.
Approvals On request.
DIMENSIONS AVAILABLE OPTIONS
Sheet size and thickness depend on type of
Doniflon.
900E, 2010, 2020, 2030
TECHNICAL DATA Typical values for a thickess of 2 mm
900E 2010 2020 2030
0.9 1.5 2.1 3.0
Compressibility ASTM F36J % 55 35 7 6
Recovery ASTM F36J % 12 40 45 40
Tensile strength ASTM F152 MPa 32 14 14 10
16 h, 30 MPa, 150 °C MPa 16 14 13 13
Specific leak rate DIN 3535-6 mg/(s.m) 0.002 0.002 0.002 0.002
pH range 0-14 0-14 0-14 0-14
Operating conditions
Minimum temperature °C/°F -200/-328 -200/-328 -200/-328 -200/-328
Maximum temperature °C/°F 260/500 260/500 260/500 260/500
Pressure bar/psi 100/1450 60/870 80/1160 80/1160
DONIFLON

2010
2020
2030
900E
Acetamide
Acetic acid 10%
Acetic acid 100%
Adipic acid
Air
Alum
Aluminium acetate
Aluminium chloride
Ammonia, liquid or gas
Ammonium chloride
Ammonium hydroxide
Amyl acetate
Aniline
Asphalt
Barium chloride
Benzene
Benzoic acid
Boric acid
Borax
Butane
Butyl alcohol
Butyric acid
Calcium chloride
Calcium hydroxide
Carbon dioxide
Carbon disulphide
Chloroform
Chromic acid
Citric acid
Copper acetate
Creosote
Cresol
Cyclohexanol
Cyclohexanone
Dibenzyl ether
Dimethyl formamide
Dowtherm
Ethane
Ethyl acetate
Ethyl alcohol
Ethyl chloride
Ethylene
Ethylene glycol
Formic acid
Formaldehyde
Freon 12
Freon 22
Fuel oil
Gasoline
Glycerine
Heptane
Hydrazine
Hydrogen
Isobutane
2010
2020
2030
900E
Isooctane
Isopropyl alcohol
Kerosene
Lead acetate
Lead arsenate
Magnesium sulphate
Malic acid
Methane
Methanol
Methyl chloride
Methyl ethyl ketone
Milk
Naphtha
Nitrobenzene
Nitrogen
Octane
Oleic acid
Oleum
Oxalic acid
Oxygen
Palmitic acid
Pentane
Perchloroethylene
Phenol
Potassium acetate
Potassium chloride
Potassium hydroxide
Potassium iodide
Potassium nitrate
Propane
Pyridine
Salicylic acid
Silicone oil
Soap
Sodium aluminate
Sodium bicarbonate
Sodium bisulphite
Sodium chloride
Sodium cyanide
Sodium hydroxide
Sodium sulphate
Sodium sulphide
Starch
Steam
Stearic acid
Sugar
Tar
Tartaric acid
Toluene
Transformer oil
Trichlorethylene
Water
White spirit
Xylene
All information, and data quoted are based on years of experience in production and operation
of sealing elements. The data may not, be used to support any warranty claims.
This edition cancels all previous issues, and is a subject to change without further notice.
Recommended
Not recommended
Chemical Resistance Chart for Doniﬂon
19
Chemical resistance chart for Doniflon

20
Doniflex®
is a gasket material made from a combination of aramid fibers, specially selected fillers, graphite and as
required steel, which are combined to form an environmentally friendly gasket material. It has excellent thermal and
chemical properties, excellent resistances to various media and many application possibilities.
PROPERTIES
Composition
Graphite, aramid fibers, NBR, steel reinforcement also
available.
Colour Grey
Properties
Excellent thermal and chemical properties along with an
excellent resistance to various substances. Environment
friendly.
Petrochemicals, chemical industry, pulp and paper
production, food industry, power plants, automotive
industry, shipbuilding.
Approvals WRAS, TA-Luft (VDI 2440), DVGW W270
DIMENSIONS AVAILABLE OPTIONS
Sheet size and thickness depend on type
of Doniflex.
G-LD, G-MD, G-HD, G-CP, G-EM, G-SP
TECHNICAL DATA
G-LD G-MD G-HD G-CP G-EM G-SP
Typical values for a thickness of: 2 mm 1 mm 1.5 mm 2 mm 2 mm 1 mm
1.2 1.4 1.5 1.8 1.7 1.9
Compressibility ASTM F36J % 35 20 15 20 20 20
Recovery ASTM F36J % 17 32 45 25 30 33
Tensile strength ASTM F152 MPa 4.5 9 8 10 15 35
16 h, 50 MPa, 175 °C MPa 40 45 42 42 40 46
16 h, 50 MPa, 300 °C MPa 35 40 38 38 35 44
Specific leak rate DIN 3535-6 mg/(s.m) 0.5 0.3 0.1 0.15 0.1 0.3
Oil IRM 903, 5 h, 150 °C % 3 5 5 5 8 6
ASTM Fuel B, 5 h, 23 °C % 2 5 5 5 8 5
Weight increase
Oil IRM 903, 5 h, 150 °C % 30 20 15 15 18 15
ASTM Fuel B, 5 h, 23 °C % 25 17 15 15 18 12
DONIFLEX®

Acetamide
Acetic acid 10%
Acetic acid 100%
Acetic ester
Acetone
Acetylene
Adipic acid
Air
Alum
Aluminium acetate
Aluminium chlorate
Aluminium chloride
Ammonia
Ammonium chloride
Ammonium hydroxide
Amyl acetate
Aniline
Asphalt
Barium chloride
Benzene
Benzoic acid
Boric acid
Borax
Butane
Butyl alcohol
Butyric acid
Calcium chloride
Calcium hydroxide
Carbon dioxide
Carbon disulphide
Chloroform
Chlorine, dry
Chlorine, wet
Chromic acid
Citric acid
Copper acetate
Creosote
Cresol
Cyclohexanol
Cyclohexanone
Decalin
Dibenzyl ether
Dimethyl formamide
Dowtherm
Ethane
Ethyl acetate
Ethyl alcohol
Ethyl chloride
Ethylene
Ethylene glycol
Formic acid 10%
Formic acid 85%
Formaldehyde
Freon 12
Freon 22
Fuel oil
Gasoline
Glycerine
Heptane
Hydrazine
Hydrogen
Isobutane
Isooctane
Isopropyl alcohol
Kerosene
Lead acetate
Lead arsenate
Magnesium sulphate
Malic acid
Methane
Methanol
Methyl chloride
Methyl ethyl ketone
Milk
Naphtha
Nitric acid 20%
Nitric acid 40%
Nitric acid 96%
Nitrobenzene
Nitrogen
Octane
Oleic acid
Oleum
Oxalic acid
Oxygen
Palmitic acid
Pentane
Perchloroethylene
Peracetic acid 15%
Phenol
Phosphoric acid
Potassium acetate
Potassium carbonate
Potassium chloride
Potassium hydroxide
Potassium iodide
Potassium nitrate
Propane
Pyridine
R 134a
Salicylic acid
Silicone oil
Soap
Sodium aluminate
Sodium bicarbonate
Sodium bisulphite
Sodium carbonate
Sodium chloride
Sodium cyanide
Sodium hydroxide
Sodium sulphate
Sodium sulphide
Starch
Steam
Stearic acid
Sugar
Sulphuric acid 20%
Sulphuric acid 96%
Tar
Tartaric acid
Toluene
Transformer oil
Trichlorethylene
Water
White spirit
Xylene
DONIFLEX
DONIFLEX
DONIFLEX
The recommendations made here are intended as a guideline for the selection of
a suitable gasket. The function and durability of these products depends upon a
number of factors.
Chemical resistance chart for Doniflex
G-LD G-MD G-HD G-CP G-EM G-SP
Typical values for a thickness of: 2 mm 1 mm 1.5 mm 2 mm 2 mm 1 mm
% 26 / 6 / / /
% 5 / 6 / / /
% 3.0 / 4.0 / / /
% 0.5 / 0.5 / / /
Creep deformation
Change in thickness at 20 °C, 50 MPa % 33 18 15 10 18 12
Change in thickness at 300 °C, 50 MPa % 8 10 7 10 8 6
Change in thickness at 400 °C, 50 MPa % / / / 12 / 8
21
Recommended
Not recommended

22
PROPERTIES
Composition Flexible graphite sheets.
Colour Black
Properties
Available with a stainless steel insertion. Excellent
strength and creep resistance, chemical stability and a
high tightness rate.
Chemical industry, petrochemicals, power plants,
food industry.
Approvals
API 607, Germanischer Lloyd
DIMENSIONS OF STANDARD SHEETS AVAILABLE OPTIONS
Sheet size (mm): 1000 x 1000 | 1500 x 1500
Thickness (mm): 1.0 | 1.5 | 2.0 | 3.0
Other dimensions and thicknesses available on
request.
SF, SL, SP, EM
TECHNICAL DATA
Typical values for a thickness of 1.5 mm SF SL SP EM
1.0 1.3 1.5 1.4
Compressibility ASTM F36A % 45 42 35 35
Recovery ASTM F36A % 13 15 17 20
16 h, 50 MPa, 300 °C MPa 49 49 49 49
Specific leak rate DIN 3535-6 mg/(s.m) 0.05 0.05 0.05 0.05
Leachable chloride content FSA NMG 202 ppm 20 20 20 20
Leachable fluoride content FSA NMG 203 ppm 20 20 20 20
Ash content of graphite DIN 51903 % 1 1 1 1
% 41 38 34 32
At elevated temperature: εWSW/300˚C
% 0.9 1.2 1.2 2.5
% 5.0 4.3 4.2 4.5
At elevated temperature: εWSW/300˚C
% 4.0 3.6 3.3 3.5
Minimum temperature ˚C/˚F -200/-328 -200/-328 -200/-328 -200/-328
Continuous temperature
- oxidizing atmosphere ˚C/˚F 550/1022 550/1022 550/1022 550/1022
- reducing or inert atmosphere ˚C/˚F 1000/1832 700/1292 700/1292 700/1292
Pressure bar/psi 80/1160 100/1450 200/1450 200/1450
Grafilit®
is a high grade gasket material based on flexible graphite sheets and is available with a stainless steel insertion,
which allows use for many application possibilities. It has excellent strength and creep resistance, chemical stability and
a high tightness rate.
GRAFILIT®

23
Acetamide
Acetic acid 10%
Acetic acid 100%
Acetic ester
Acetone
Acetylene
Adipic acid
Air
Alum
Aluminium acetate
Aluminium chlorate
Aluminium chloride
Ammonia
Ammonium chloride
Ammonium hydroxide
Amyl acetate
Aniline
Asphalt
Barium chloride
Benzene
Benzoic acid
Boric acid
Borax
Butane
Butyl alcohol
Butyric acid
Calcium chloride
Calcium hydroxide
Carbon dioxide
Chloroform
Chlorine, dry
Chlorine, wet
Chromic acid
Citric acid
Copper acetate
Creosote
Cresol
Cyclohexanol
Cyclohexanone
Decalin
Dibenzyl ether
Dimethyl formamide
Dowtherm
Ethane
Ethyl acetate
Ethyl alcohol
Ethyl chloride
Ethylene
Ethylene glycol
Formic acid 10%
Formic acid 85%
Formaldehyde
Freon 12
Freon 22
Fuel oil
Gasoline
Glycerine
Heptane
Hydrazine
Hydrogen
Isobutane
Isopropyl alcohol
Kerosene
Lead acetate
Lead arsenate
Magnesium sulphate
Malic acid
Methane
Methanol
Methyl chloride
Methyl ethyl ketone
Milk
Naphtha
Nitric acid 20%
Nitric acid 40%
Nitric acid 96%
Nitrobenzene
Nitrogen
Octane
Oleic acid
Oleum
Oxalic acid
Oxygen
Palmitic acid
Pentane
Perchloroethylene
Phenol
Phosphoric acid
Potassium acetate
Potassium carbonate
Potassium chloride
Potassium hydroxide
Potassium iodide
Potassium nitrate
Propane
Pyridine
R 134a
Salicylic acid
Silicone oil
Soap
Sodium aluminate
Sodium bicarbonate
Sodium bisulphite
Sodium carbonate
Sodium chloride
Sodium cyanide
Sodium hydroxide
Sodium sulphate
Sodium sulphide
Starch
Steam
Stearic acid
Sugar
Sulphuric acid 20%
Sulphuric acid 96%
Tar
Tartaric acid
Toluene
Transformer oil
Trichlorethylene
Water
White spirit
Xylene
GRAFILIT
GRAFILIT
GRAFILIT
Recommended
Not recommended
Chemical Resistance Chart for Graﬁlit
All information, and data quoted are based on years of experience in production and operation
of sealing elements. The data may not, be used to support any warranty claims.
This edition cancels all previous issues, and is a subject to change without further notice.
23
Chemical resistance chart for Grafilit

PROPERTIES
Composition
Aluminosilicate (phlogopite) impregnated with silicon.
It is available as pure mica (MICALIT F) or with stainless
steel insertion AISI 316 0.1 mm (MICALIT P).
Colour Golden
Properties
Very high resistance to temperature (up to 950 °C in
oxidizing atmosphere). Good chemical resistance.
Good electrical insulation and low thermal conductivity
properties.
Automotive industry, petrochemicals, steel industry,
power plants, heat exchangers.
DIMENSIONS OF STANDARD SHEETS AVAILABLE OPTIONS
Sheet size (mm): 1000 x 1200
Thickness (mm): 0.4 - 3.0 Micalit F
1.5 | 2.0 | 3.0 Micalit P
Other dimensions available on request.
F, P
TECHNICAL DATA
Typical values for a thickness of 1.5 mm F P
1.9 2.0
Compressibility ASTM F36J % 20 20
Recovery ASTM F36J % 35 35
Loss on ignition DIN 52811 % 8 5
16 h, 50 MPa, 300 °C MPa 38 42
Maximum temperature ˚C/˚F 950/1742 950/1742
2424
Mica is an aluminosilicate material with very high thermal resistance, used for exhaust pipe manifolds, burner flanges,
gas turbine housings, turbocharger flange gaskets.
MICALIT

Customer care
We have a strong commitment to build a true, open and
reliable partnership with our customers in a way that will
make your everyday business easier. Our customers have
direct approach to their personal sales representative
with engineering background and, when necessary, with
our technical experts.
With this in mind, we offer extranet to our customers,
through which registered users have direct access to:
Entire technical documentation.
All available certificates.
Direct link to your dedicated DONIT contact.
Material selector
Finding the right product within wide range of gaskets is
not an easy task. We make it easier with our web-based
material selector, which provides access to the material
database of the gasket sheets.
25
25
Customer care
We are committed to building a genuine, open and
reliable partnership with all of our customers that will
make your everyday business easier. Our customers have
direct access to their personal sales representatives
with engineering backgrounds and when necessary our
technical experts.
With this in mind, we offer extranet to our customers,
through which registered users have direct access to:
Entire technical documentation of product data sheets.
All available certificates.
Direct contact details for your dedicated DONIT
contacts.
Material selector
Finding the right product within our wide range of gasket
materials is not an easy task. We make it easier with our
web-based material selector, which provides access to our
entire materials database for gasket sheets.
TESNIT BA-203
TESNIT BA-202
GRAFILIT
TESNIT® BA-202 is our
standard gasket sheet, suitable
for sealing applications at low
TESNIT® BA-203 is a special
gasket material based on
aramid fibers and NBR rubber,
suitable for lower to medium
Grafilit® is a high grade gasket material
based on flexible graphite sheets and is
available with a stainless steel insertion,
which allows for many application
possibilities. It has excellent strength and
creep resistance, chemical stability and a
high tightness rate.

Contact information
DONIT Tesnit®
, d.o.o.
Cesta komandanta Staneta 38
1215 Medvode
Slovenia
Phone:
+386 (0)1 582 33 00
Fax:
+386 (0)1 582 32 06
+386 (0)1 582 32 08
Suzhou Donit Sealing Materials
Import and Export Co., Ltd.
No. 8 Suzhou Avenue West,
Bank of Chine Building, Room
1904, SIP, 215021, P.R. China
Phone:
+86 (0)512 659 535 29
Tolerances for BA materials:
+/- 5 % on length and width
On thickness up to 1.0 mm +/- 0.1 mm
On thickness above 1.0 mm +/- 10 %
Disclaimer
All information and data quoted are based upon years of experience in the
production and operation of sealing elements. This data may not be used to
support any warranty claims.
With its publication this latest edition supersedes all previous issues and is
subject to change without further notice.
Date of issue: 16. 1. 2015
Web:
www.donit.eu
E-mail:
info@donit.eu

DONIT_Gasket sheets_Brochure.compressed

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