Find suitable materials

Technical Questionnaire

Data Sheet Warranty Limitations

DON 2.0
The computer software to help you choose the appropriate sealing quality

TESNIT® Compressed Gasket Materials - Standard Line

BA-GL

Gasket material with excellent torque retention, good steam and thermal resistance.

TESNIT® BA-GL is an excellent soft gasketing material composed of selected synthetic fibres and bonded with NBR. Material has a superior torque retention and good steam resistance. It has very good thermal resistance in combination with good gas sealability. Material is also suitable for use with water, oils, gases, fuels and many acids. TESNIT® BA-GL complies with the requirements of BS 7531 Grade X and covers the very wide application range.


Download PDF

  • Properties and application
  • Dimensions
  • Technical data
  • Diagram
  • Chemical Resistance

Properties and application

Gasket material for sealing of very broad range of media at high temperatures.

Basis

Glass fibres, NBR

Approvals

CRS, DIN-DVGW (DIN 3535/6), Germanischer Lloyd, HTB (DVGW VP 401),  TA-LUFT (VDI 2440) 

Surface treatment

Treatment with graphite, PTFE and antistick coating is available on request.

Dimensions of standard sheet

Sheet size

mm

1000x1500, 1500x1500, 3000x1500, 4500x1500

Thickness

mm

0.5, 0.8, 1.0, 1.5, 2.0, 3.0

 

other dimensions and thicknesses on request

Technical data

Typical values for a thickness of 2 mm

Compressibility

ASTM F 36/J

%

8

Recovery

ASTM F/36/J

%

50

Tensile strength

DIN 52910

N/mm2

8

Stress resistance

DIN 52913

16h, 300°C, 50N/mm2

N/mm2

30

16h, 175°C, 50N/mm2

N/mm2

35

Specific Leak Rate

DIN 3535/6

mg/sm

0.08

Thickness increase

ASTM F 146

Oil IRM 903, 5h, 150°C

%

8

ASTM Fuel B, 5h, 23°C

%

8

HNO3 40%, 18h 23°C

%

H2SO4 65%, 48h, 23°C

%

Max. operating conditions

Peak temperature

°C/F

440/824

Continuous temperature

°C/F

350/662

- with steam

°C/F

250/482

Pressure

bar/psi

100/1450

 

 

P-T diagram

 

 

General suitability using common installation practices under the condition of chemical compatibility.

Max. performance is ensured through appropriate measures for joint design and gasket installation. Consultation is recommended.

Limited application area - Technical consultation is mandatory.

 

The Pressure - Temperature charts are the most current method of 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 this max. values depend not only on the type of gasket material but also on the assembly conditions. Use the pressure and temperature graphs to check suitability of chosen gasket material for your application (combination of pressure and temperature).

Acetamide Dowtherm Oleic acid
Acetic acid 10% Ethane Oleum
Acetic acid 100% Ethyl acetate Oxalic acid
Acetic ester Ethyl alcohol Oxygen
Acetone Ethyl chloride Palmitic acid
Acetylene Ethylene Pentane
Adipic acid Ethylene glycol Perchloroethylene
Adipic acid Formaldehyde Phenol
Air Formic acid 10% Phosphoric acid
Alum Formic acid 85% Potassium dichromate
Aluminium acetate Freon 12 Potassium acetate
Aluminium chlorate Freon 22 Potassium bicarbonate
Aluminium chloride Fuel oil Potassium carbonate
Ammonia Gasoline Potassium chloride
Ammonium bicarbonate Glycerin Potassium hydroxide
Ammonium chloride Heptane Potassium iodide
Ammonium hydroxide Hydraulic oil (Mineral) Potassium nitrate
Amyl acetate Hydraulic oil (type glycol) Potassium permanganate
Aniline Hydraulic oil (type phosphate esther) Propane
Asphalt Hydrazine Pyridine
Barium chloride Hydrochloric acid 20% Salicylic acid
Benzene Hydrochloric acid 36% Silicone oil
Benzoic acid Hydrofluoric acid 10% Soap
Blast furnace gas Hydrofluoric acid 40% Sodium aluminate
Borax Hydrogen Sodium bicarbonate
Boric acid Isobutane Sodium bisulphite
Butane Isopropyl alcohol Sodium carbonate
Butyl alcohol Kerosene Sodium chloride
Butyric acid Lead acetate Sodium cyanide
Calcium chloride Lead arsenate Sodium hydroxide
Calcium hydroxide Magnesium sulphate Sodium sulphate
Carbon bisulphide Malic acid Sodium sulphite
Carbon dioxide Methane Starch
Chlorine, dry Methanol Steam
Chlorine, wet Methyl chloride Stearic acid
Chloroform Methyl ethyl ketone Sugar
Chromic acid Methylene dichloride Sulfuric acid 20%
Citric acid Milk Sulfuric acid 96%
Copper acetate Mineral oil type ASTM 1 Tar
Creosote Naphtha Tartaric acid
Cresol Nitric acid 20% Toluene
Cyclohexanol Nitric acid 40% Transformer oil
Cyclohexanone Nitric acid 96% Trichloroethylene
Decalin Nitrobenzene Water
Dibenzylether Nitrogen White spirit
Dimethyl formamide Octane Xylene

Legend

totally satisfactory doubtful totally unsatisfactory no data - please contact our Technical service