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MATERIALS

NON ASBESTOS

ECONOMY

Application

Water/Oil resistant gasket material for light loading. Suitable for low operating pressure, e.g. transformers, compressors and apparatus. Also used for easily deformable components with low surface pressure  like valve covers and pans in internal combustion engines.

Supply Data

Thickness (in mm) 0.50, 0.80, 1.00, 1.50, 2.00, 3.00
Operating Condition Maximum internal pressure: 70 BAR
Maximum Temperature:  250°C
Grade WTS-NASB-ECON
Color Green/Green

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Bottom

General Data

Material Composition     (Type of fibres) Made from Mineral Fibre, High Quality NBR & Organic Fibre.
Binders NBR
Max.Peak Temp 250°C
Max. Continuous Temp 180°C
Max.Continuous Temp.with steam 120°C
Max. Operating Pressure 50 bar

Physical Properties

The following Information Applies to material Thickness 2.0 mm.

 

S.NO. PROPERTIES TEST METHOD UNIT SPECIFIED VALUE
1.  DENSITY ———- gm / cm3 1.50 – 2.00
2. TENSILE STRENGTH
(a) ACC to ASTM F152(ACROSS GRAIN) N/mm2 > 7
(b) ACC to DIN52910 (ACROSS GRAIN) N/mm2 > 5
3. COMPRESSIBILITY ASTM F36A % 7 – 15
4. RECOVERY ASTM F36A % > 40
5. FLUID ABSORPTION
 (a) IN ASTM OIL NO. 3 ASTM F 146
 INCREASE IN MASS % < 15
INCREASE IN THICKNESS % < 10
 (b) IN FUEL B ASTM F 146
 INCREASE IN MASS % < 10
INCREASE IN THICKNESS % < 10
 (c) IN WATER/ANTIFREEZE ASTM F 146
INCREASE IN MASS % < 15
INCREASE IN THICKNESS % < 7
6. IGNITION LOSS DIN 52911 % < 40
7. STRESS RESISTANCE (16h 175°C) DIN 52913 N/mm2

10

 

PREMIUM

Application

Suitable for high performance, oil resistant gasket material with excellent thermal, chemical & mechanical properties. Suitable for compressors, pipelines, apparatus, transmission, gas meters and internal combustion engines, pipe unions & pumps etc.

Supply Data

Thickness (in mm)

0.50, 0.80, 1.00, 1.50, 2.00, 3.00

Operating Condition

Maximum internal pressure: 150 BAR
Maximum Temperature:  270°C

Grade

WTS-NASB-PREM

Color

White/Green

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Bottom

General Data

Material Composition     (Type of fibres)

Aramid Fiber, Mineral Fibre

Binders

NBR

Max.Peak Temp

400°C

Max. Continuous Temp

270°C

Max.Continuous Temp.with steam

240°C

Max. Operating Pressure

150 bar

Physical Properties

The following Information Applies to material Thickness 2.0 mm.

 

S.NO.

PROPERTIES

TEST METHOD

UNIT

SPECIFIED VALUE

1.

 DENSITY

———-

gm / cm3

1.70 – 2.00

2.

TENSILE STRENGTH

(a) ACC to ASTM F152(ACROSS GRAIN)

N/mm2

> 14

(b) ACC to DIN52910 (ACROSS GRAIN)

N/mm2

> 11

3.

COMPRESSIBILITY

ASTM F36A

%

6 – 12

4.

RECOVERY

ASTM F36A

%

> 50

5.

FLUID ABSORPTION

 (a) IN ASTM OIL NO. 3

ASTM F 146

      INCREASE IN MASS

%

< 10

      INCREASE IN THICKNESS

%

< 8

 (b) IN FUEL B

ASTM F 146

      INCREASE IN MASS

%

< 10

      INCREASE IN THICKNESS

%

< 7

 (c) IN WATER/ANTIFREEZE

ASTM F 146

      INCREASE IN MASS

%

< 15

      INCREASE IN THICKNESS

%

< 7

6.

IGNITION LOSS

DIN 52911

%

< 30

7.

 SEALABILITY AGAINST

DIN 3535

cm3/min.

< 0.5

8.

STRESS RESISTANCE

 16h 300C

DIN 52913

N/mm2

~ 25

 16h 175C

DIN52913

N/mm2

~ 30

WIRE

Application

Water/oil resistant gasket material for light loading. Suitable for low operating pressure, e.g. transformers, compressors and apparatus. Also used for easily deformable components with low surface pressure  like valve covers and pans in internal combustion engines

Supply Data

Thickness (in mm) : 0.30, 0.50, 0.75, 1.00, 1.50, 2.00, 3.00, 4.00

Operating Condition Maximum internal pressure: 70 BAR Maximum Temperature:  180°C

Grade WTS-NASB-WIRE

Color Charcoal/Charcoal

General Data

Material Composition (Type of fibres) Aramid Fiber, Organic Fibre with Metal Gauge Centre

Binders: NBR

Max.Peak Temp: 250°C

Max. Continuous Temp: 180°C

Max.Continuous Temp.with steam: 120°C

Max. Operating Pressure: 70 bar

Physical Properties

The following Information Applies to material Thickness 2.0 mm.

PROPERTIES

TEST METHOD

UNIT

SPECIFIED VALUE

DENSITY

TENSILE STRENGTH

———-

gm / cm3

1.50 – 2.10

(a) ACC to ASTM F152(ACROSS GRAIN) (b) ACC to DIN52910 (ACROSS GRAIN)

N/mm2

N/mm2

> 7

> 5

COMPRESSIBILITY

ASTM F36A

%

7 – 15

RECOVERY

ASTM F36A

%

> 40

FLUID ABSORPTION

(a) IN ASTM OIL NO. 3

ASTM F 146

INCREASE IN MASS

%

< 15

INCREASE IN THICKNESS

%

< 10

(b) IN FUEL B

ASTM F 146

INCREASE IN MASS

%

< 10

INCREASE IN THICKNESS

%

< 10

(c) IN WATER/ANTIFREEZE ASTM F 146

INCREASE IN MASS

%

< 15

INCREASE IN THICKNESS

%

< 7

IGNITION LOSS

DIN 52911

%

< 40

Chemical Resistance Chart 

A  Recommended

C  Recommendation depends on operating conditions

X  Not recommended

Acetaldehyde

C

Ethyl acetate

C

Oxalic acid

C

Acetic acid 10%

A

Ethyl alcohol

A

Oxygen

A

Acetic acid 100%

A

Ethyl chloride

C

Palmitic acid

A

Acetic ester

C

Ethylene

A

Pentane

A

Acetone

C

Ethylene glycol

C

Perchloroethylene

C

Acetylene

A

Ferric chloride

A

Phenol

X

Adipic acid

A

Formic acid 85%

C

Phosphoric acid

A

Air

A

Formaldehyde

A

Potassium acetate

A

Alum

A

Freon 12

A

Potassium bicarbonate

A

Aluminium acetate

A

Freon 22

C

Potassium carbonate

A

Aluminium fluorde

A

Gasoline (Leaded)

X

Potassium chloride

A

Aluminium chloride

A

Glycerine

A

Potassium dichromate

A

Ammonia

A

Heptane

A

Potassium hydroxide

C

Aluminium bicarbonate

A

Hydraulic oil

A

Potassium iodide

A

Ammonium chloride

A

Hydraulic (glycol based)

A

Potassium nitrate

A

Ammonium hydroxide

A

Zinc hydrate

A

Potassium permanganate

A

Amyle acetate

C

Hydrazine

A

Propane

A

AST Oil No. 3

A

Hydrocloric acid 20%

C

Pyridine

X

Asphalt

A

Hydrocloric acid 36%

X

Salicylic acid

A

Barium chloride

A

HCL (dry)

X

Silicone oil

A

Benzene

A

Hydrofluoric acid 40%

X

Skydrol

X

Benzoic acid

X

Hydrogen

A

Sodium aluminate

A

Boric acid

A

Isobutane

A

Sodium bicarbonate

A

Borax

A

Isooctane

A

Sodium bisulphite

A

Brine

A

Isopropyl alcohol

A

Sodium carbonate

A

Butane

A

Kerosene

A

Sodium chloride

A

Butyl alcohol

A

Lead acetate

A

Sodium cyanide

A

Butyric acid

A

Lime water

A

Sodium hydroxide

C

Calcium chloride

A

Magnesium sulphate

A

Sodium sulphate

A

Calcium hydroxide

A

Mallic acid

A

Sodium sulphide

A

Carbon disulphide

X

Methane

A

Starch

A

Carbon dioxide

A

Methanol

A

Sean

A

Chloroform

A

Methyl chloride

X

Stearic acid

A

Carban tetra chloride

C

Methyl dichloride

X

Sugar

A

Chlorine, wet

X

Methyl ethyl ketone

C

Sulphuric acid 20%

X

Chromic acid

X

Milk

A

Sulphuric acid 96%

X

Citric acid

A

Mercury

A

Tar

A

Copper chloride

C

Natural Gas

A

Tartaric acid

A

Creosole

X

Nitric acid 20%

X

Toluene

A

Cresol

X

Nitric acid 40%

X

Transformer oil

A

Cyclohexanol

A

Nitric acid 96%

X

Trichlorethylene

A

Dibenzyl ether

X

Nitrobenzene

X

Water

A

Dimethyl formamide

X

Nitrogen

A

White Spirit

A

Diesel oil

A

Octane

A

Xylene

C

Ethane

A

Oleic acid

A

ACID

Application

Gasket material for various highly aggressive media and very good chemical resistance to acid & alkaline media.

Supply Data

Thickness (in mm) 0.50, 1.50, 2.00, 3.00
Operating Condition Maximum internal pressure: 130 BAR
Maximum Temperature:  270°C
Grade WTS-NASB-ACID
Color White / White

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Bottom

General Data

Material Composition     (Type of fibres) Aramid Fibre.
Binders CSM Elastomers
Max.Peak Temp 400°C
Max. Continuous Temp 270°C
Max.Continuous Temp.with steam 240°C
Max. Operating Pressure 150 bar

Physical Properties

The following Information Applies to material Thickness 2.0 mm.
S.NO. PROPERTIES UNIT SPECIFIED VALUE
1.  DENSITY gm/cm3 1.70 – 2.00
2. TENSILE STRENGTH
(a) ACC to ASTM F152(ACROSS GRAIN) N/mm2 > 15
(b) ACC to DIN52910 (ACROSS GRAIN) N/mm2 > 10
3. COMPRESSIBILITY & RECOVERY
 ACC to ASTMF 36 procedure A
Compressibility % 7 – 17
Recovery % > 50
4. ACID RESISTANCE
 THICKNESS INCREASE AFTER IMMERSION IN
 a) 96% H2SO4 Acid (18 hrs at room temp ) % < 35
 b) 95% HNO3 Acid (18 Hrs at room temp.) % < 10
 c) 50% HNO3 Acid (1 Hrs at 60°C ) % < 8
 d) 65% H2SO4 Acid ( 48 Hrs at room temp.) % < 40
5. TENSILE STRENGTH AFTER IMMERSION IN
 a) 96% H2SO4 Acid (48 Hrs at room temp.) N/mm2 > 12
 b) 95% HNO3 Acid (48 Hrs at room temp.) N/mm2 > 5
6.  IGNITION LOSS ACC. TO . DIN 52911 % < 28

 

CORK

AUTOMOTIVE

General Tests

Description

Rubberised Cork Sheet / Roll

Grade

WTS-CORK-AUTO

Color

Brown

Thickness (in mm)

1.5, 2.4, 3.0, 4.5, 6.0

Front

Back

Physical Tests

Chemical Composition

Rubber & Cork

Tensile Strength (KPA) (Min)

600 KPA

Shore Hardness

60 – 70

Compressibility (700 KPA)

45 – 60%

Recovery (as % of compression) (Min)

80

Flexibility (Tx3)

Pass

Density (KG/M3) Min

600 Min

Water Test

Pass

HCL Test

Pass

ASTM Oil Test

N.A.

This information represents typical values which can vary according to the application.  These values do not constitute a performance guarantee.  Users should determine, prior to use, the suitability of this material for their particular application.

TRANSFORMER

General Tests

Description Rubberised Cork Sheet / Roll
Grade WTS-CORK-TRANS
Color Natural
Thickness (in mm) 1.5, 3.0, 4.5, 6.0, 9.5, 12.7

Front

Back

Physical Tests

Density (Gm/cc) 0.75 – 0.95
Tensile Strength (Min. KPA) 1550 – 2500
Shore Hardness (Shore A) 70±5
Compressibility @28 kg/cm² (2800 KPA) (%) 25 – 35
Recovery (%) 80
Volume Change (In ASTM oil No. 3) (%) Max 15
Volume Change (In Trans oil) (%) 10 – 14
Dimensional Stability (%) 0.6
Compression Set (Max) (%) 85
Correspondance to IS 4253-II Grade RC- 70 C
  • No signs of cracking observed when wound on Mandrel of Thickness x 3 (as per Flexibility Test specified in IS 4253-II (1980)).
  • No signs of disintegration / deterioration observed when immersed in Water for 3 Hours @ 100ºC.
  • No signs of disintegration / deterioration observed when immersed in 35% Hydrochloric Acid for 30 mins.
  • Volume Change % measured for Immersion in ASTM Oil No.3 for 70 Hours @100ºC.
  • Volume Change % measured for Immersion in Transformer Oil (IS 335) for 70 Hours @ 100ºC * All Tests conducted as per test procedures specified in IS 4253-II (1980).
  • Chemical Test on Water Extracts (PH 5.0 – 8.5). Chloride content & Sulphur content 0.2% max.

This information represents typical values which can vary according to the application.  These values do not constitute a performance guarantee.  Users should determine, prior to use, the suitability of this material for their particular application.

TECHNIFLEX

FLEXOID

Application

Techniflex Automotive is a Glue/Glycerine based fibre material imported for a variety of automotive application.

Supply Data

Thickness (in mm) 0.25, 0.4, 0.8, 1.5, 3.0
Grade WTS-FLEX-AUTO
Color Brown/Brown
Composition Plasticised gelatine impregranted Glue Glycerine Cellulose material
ASTM Specification compliance

ASTM F104-76 F326128-M6

ASTM D1170-62T 93313B

BS 4249 – 1967

Front

Back

Genral Data

Features

Highly resistant to oils and fuels. 

High compressibility and excellent sealing properties

Used in a variety of gasket applications 

Applications

For sealing against petrol, oil and water. 

Used in carburretors, fuel pumps, Engine front plates, oil pump, oil filter, Engine side cover, Thermostat, Timing cover, water pump, etc.

Limitations

Stored gaskets must be protected from wide changes of humidity.

Not suitable for alkalis, acids and steam.

Maximum recommended service temperature: 120°C

Flexibility

Capable of withstanding bending with a diameter of twice the thickness of the material under test, with or excessive marring of the surfaces.

Material Specifications

Maximum Recommended Service Temperature

120°C

250°F

Compressibility at 70kg / cm2 (1000 psi)

25% – 40%

Recovery

40% Min

Tensile Strength across gain

13.79NM/m² Min

Oil Immersion in ASTM Oil No.3 22hrs@RT

Thickness increase (Max): % 5
Weight Increase (Max) : % 15

Water Absorption in Distilled Water 22hrs@RT 

Thickness increase (Max): % 30
Weight Increase (Max) : % 90

Fuel Immersion in ASTM Fuel B 22hrs@RT 

Thickness increase (Max): % 5
Weight Increase (Max) : % 15

 

CEMJO

SINGLE

Material Details 

This material consists of a double perforated steel core with a layer of Non Asbestos beater material applied to each side.  The beater material layer is bonded to the core by means of tangs which are clinched into the beater material body.  These tangs are produced in the steel by perforating during manufacture.

The completed assembly is high resistant to heat and gas.  Mechanical adhesion of the beater layer to the steel is such that the material cannot separate during handling or in operation.  Various assembly thicknesses are available.

Application

Cylinder head gasket and manifold gaskets.

When used for cylinder head gaskets it is normal to have metal eyelets or grommets fitted to the bores and water holes.  During manufacture these become embedded material, giving a gasket of uniform thickness

Supply Data

Thickness (in mm)

1.6

Grade

WTS-CEMJO-SINGLE

Color

Charcoal / Charcoal

Front

Back

Technical Data

Tensile strength

Compressibility and recovery

Acc. To ASTM F36

Compressibility:

Recovery:

350kg/cm²

% 10-20

% 40min

Oil Immersion test ASTM Oil No. 3 (ASTM F146 for 5 hrs @ 150ºC)

Increase in thickness:

Weight increase:

% 10max

% 30 max

Fuel Immersion test in ASTM Fuel B (ASTM F146 for 5 hrs @ room temp)

Increase in thickness:

Weight increase:

% 5max

% 15max

Water absorption test in Distilled Water (ASTM F146 for 5 hrs @ room temp)

Increase in thickness:

Weight increase:

% 15max

% 30max

Density of Material

2 – 2.5 gm/cm³

 

DOUBLE - Tin Plate Half Hard

Material Details 

Tin plate is mild steel sheet or strip, coated with tin for corrosion resistance.

Application

This grade of tin plate is primarily used for perforation purpose- double sided or single sided, especially for critical cylinder head gaskets.  This can also be used as steel core for cylinder head gaskets with steel back bone design.  Other usages are exhaust / inlet manifold gaskets, as cylinder head cover gasket core etc.  Not suitable for forming applications.

Supply Data

Grade WTS-CEMJO-DOUBLE
Color Silver / Silver

Nominal Thickness

1.6mm

Front

Back

Basic Requirements: Values

Tensile Strength 42 Kg/mm² Min
Hardness VPN 120- 160 vpn
Erichen Value (mm) 4 min
Temper T3
Tin Substance 100lbs (45 Kgs)
Tin coating

0.25 lbs to 0.5 lbs

(0.12 to 0.22 Kg)

Specification Compliance

IS 1933 – 1962

BS 2920 – 1947

 

DOUBLE - Techniseal NA1426

Material Details 

It is a high Performance low density mineral fibre reinforced Non Asbestos gasket material. It is composed of inorganic fillers combined with mineral fibres in nitrile binding matrix.

Application

It is well suited for head gaskets, heat shields, Exhaust manifold and other demanding high temperature applications up to 250°C inn normal condition and up to 600 deg C with metallic shields.

Material Thickness

1.60 mm

Front

Back

Basic Properties

Density g/cm³

1.10-1.20

Compressibility %

25-40

Recovery %

20 min

Tensile Strength Kg/cm²

30 min

Loss of ignition % max

30

 

FLUID AGEING PROPERTIES

Thickness

Increase % max

Weight

Increase % max

In ASTM Oil no. 3

5 Hrs at 150°C

10

50

In ASTM Fuel B

5 Hrs at room temperature

10

45

 

Specification Compliance

ASTM F 104 F726160 E62 M3

OTHER

PFTE & STANDARD PFTE

RUBBER

FOAM

GRAPHITE

GLAND PACKAGING