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Gasket Sheets

 

Manufactured by SEMA Group sp. z o.o. Polonit Gasket Sheets are non-asbestos products made from cellulose and aramid fibres and thermally resistant fillers with a NBR binder

 

 

NAME Temperature Media
Polonit FA-Eko up to 180° Fuel, oil, water, neutral salt solutions, weak inert gases
Polonit FA-150 up to 180° Fuel, oil, water, steam, neutral salt solutions, inert gases
Polonit FA-202 up to 200° Fuel, oil, water, steam, weak acids and alkali, inert gases
Polonit FA-300 -40° to +320° cold and hot water, alcohols salt solutions, weak acids and alkali, inert gases, petroleum products
Polonit FA-O -60° to +350° oil, gasoline, kerosene, alcohol, steam, water (including sea water)
Polonit FA-O-1000 -40° to 420° oil, gasoline, kerosene, alcohol, steam, water (including sea water)

Standard thickness: 0,4; 0,5; 0,6; 0,8; 1,0; 1,5; 2,0; 3,0; 4,0; 5,0 mm
(with tollerance +/- 0,1 mm for thicknesses up to 0,8 mm
and+/- 10% for other thicknesses)
Standard formats: 1000 x 1500 i 1500 x 1500 mm (+/- 40 mm tollerance)

 

Basic paremeters of Polonit Gasket Sheets:

Polonit FA-Eko

 

Description:
Sealing sheets made from cellulose and aramid fibres and thermally resistant fillers with a NBR binder.
Classification: FA-NA1-O according to DIN 28091-2
Application
These sheets are designed for cutting gaskets which are working in both cold and hot water, neutral salt solutions and inert gases within following parameters:
Maximum pressure: 4MPa
Maximum short term temperature: 180°C
Maximum continuous temperature: 155°C

Caution: In case of simultaneously working in high pressure and high temperature maximally 1MPa and 100°C should be considered.

 

Physical properties
Parameter Unit Value Method
Density g/cm3 min 1,3 DIN 28090/2
Compressibility % 10-25 ASTM F 36
Recovery % min 50 ASTM F 36
Tensile strength Mpa min 5
Gas permeability ml/min. max 1,0

Polonit FA-150

Polonit FA-150

 

Description:
Sealing sheets made from cellulose and aramid fibres and thermally resistant fillers with a NBR binder.
Classification: FA-NA1-O according to DIN 28091-2
Application
These sheets are designed for cutting gaskets which are working in fuels, oils, cold and hot water, steam, weak acids, neutral salt solutions and inert gases within following parameters:
Maximum pressure: 4MPa
Maximum short term temperature: 180°C
Maximum continuous temperature: 155°C
Maximum temperature in steam: 120°C
Caution: In case of simultaneously working in high pressure and high temperature maximally 2MPa and 120°C should be considered.

 

Physical properties
Parameter Unit Value Method
Density g/cm3 min 1,7 DIN 28090/2
Compressibility % 5-15 ASTM F 36
Recovery % min 45 ASTM F 36
Tensile strength Mpa min 7
Gas permeability ml/min. max 1,0

Polonit FA-202

Polonit FA-202

 

Description:
Gasket sheets made from aramid fibres, other fibrous materials and thermally resistant fillers with a NBR binder.
Sheet recommended to work with gas media, due to its low gas permeability.
Classification
FA-ZA1-O according to DIN 28091-2
Application
These sheets are designed for cutting gaskets which are working in cold and hot water, steam, petroleum products, weak acids, weak alkalis and neutral gases within following parameters:
Maximum pressure: 4MPa
Maximum temperature: 200°C
Maximum temperature in steam: 150°C
Caution: In case of simultaneously working in high pressure and high temperature maximally 3MPa and 150°C should be considered.

 

Physical properties
Parameter Unit Value Method
Density g/cm3 min 1,6 DIN 28090/2
Compressibility % 5-15 ASTM F 36J
Recovery % min 45 ASTM F 36J
Tensile strength Mpa min 7
Gas permeability ml/min. max 1,0

Polonit FA-300

 

Specification:
Gasket sheets made from aramid fibres, other fibrous materials and thermally resistant fillers with a NBR binder.
Classification:
FA-AZ1-O according to DIN 28091-2
Application:
These sheets are designed for cutting gaskets which are working in cold and hot water, steam, alcohols, neutral salt solutions, weak acids, weak alkalis, inert gases and petroleum products within following parameters:
Maximum pressure: 10MPa
Maximum temperature: -40 to +320°C
Max. temperature in steam: 150°C
Caution: In case of simultaneously working in high pressure and high temperature maximally 4MPa and 200°C should be considered.

 

Physical properties
Parameter Unit Value Method
Density g/cm3 min 1,6 DIN 28090/2
Compressibility % 5-15 ASTM F 36
Recovery % min 45 ASTM F 36
Tensile strength Mpa min 7
Gas permeability ml/min. max 1,0

Polonit FA-O

 

Specification:
Gasket sheets made from aramid fibres, thermally resistant mineral fibres and thermally resistant fillers with a NBR binder.
Classification:
FA-AM1-O according to DIN 28091-2
Application:
These sheets are designed for cutting gaskets which are working in oil, gasoline, kerosene and other petroleum products, alcohols, steam and water (also see water) within following parameters
Maximum pressure: 10MPa
Working temperature: -60 to +350°C (300°C continuous work)
Max. temperature in steam: 230°C
Caution: In case of simultaneously working in high pressure and high temperature maximally 4MPa and 250°C should be considered.

 

Physical properties
Parameter Unit Value Method
Density g/cm3 min 1,6 DIN 28090/2
Compressibility % 5-15 ASTM F 36
Recovery % min 45 ASTM F 36
Tensile strength Mpa min 9
Stress retention, 175°, 16h MPa min 30

Polonit FA-O-1000

 

Specification:
Gasket sheets made from aramid fibres, thermally resistant mineral fibres and thermally resistant fillers with a NBR binder. This gasket sheet is reinforced with steel mesh.
Classification:
FA-AM1-O according to DIN 28091-2
Application:
These sheets are designed for cutting gaskets which are working in oil, gasoline, kerosene and other petroleum products, alcohols, steam and water (also see water) within following parameters
Maximum pressure: 12MPa
Working temperature: -40 to +350°C (420°C temporary)
Max. temperature in steam: 250°C
Caution: In case of simultaneously working in high pressure and high temperature maximally 6MPa and 250°C should be considered.

 

Physical properties
Parameter Unit Value Method
Density g/cm3 min 1,7 DIN 28090/2
Compressibility % 5-15 ASTM F 36
Recovery % min 45 ASTM F 36
Stress retention, 175°, 16h MPa min 30

If you are looking for other gasket sheet, please contact us for help.