RETALL materials consist of a steel core with a thin coating of a high-quality elastomer applied on both sides. Core materials are carbon steel (0.25 mm thick) with a 65 µm thick coating of nitrile rubber (NBR) as well as stainless spring steel (0.20 mm thick) with a 25 µm coating of fluorine rubber (FPM) or 40 µm NBR.

Gaskets made of RETALL materials are always beaded. This gives these special rubber/metal gaskets a unique combination of sealing properties:

 -  very good conformability to irregular sealing faces
 -  reliable sealing off of liquids and gases
 -  high elasticity of installed gasket (recovery)
 -  mechanical strength

Moreover, gaskets made of RETALL materials also have very good thermal resistance and are resistant to oils, fuels, anti-freeze, refrigerants (Freons), biodegradable lubricants and non-polar solvents.

The gasket material is coated on both sides with an non- stick layer.
Therefore, additional surface treatment is unnecessary in most cases.

Weight per surface unit	kg/m²	≈ 2.15
Residual stress acc. to DIN 52 913
16 h, 300 °C	N/mm²	> 45
Swelling acc. to ASTM F 146:
in IRM 903 Oil (replaces ASTM Oil No. 3) 5 h, 150 °C
increase in thickness	%	< 7
in ASTM Fuel B 5 h, room temp.
increase in thickness	%	< 8
in water / antifreeze (50:50) 5 h, 100 °C
increase in thickness	%	< 5
Short-term peak temperature	°C	240
Operating temperature	°C	-40 up to +200

The data quoted above are valid for the material "as delivered" without any additional treatment. In view of the countless possible installation and operating conditions, definitive conclusions cannot be drawn for all applications regarding the behaviour in a sealed joint. Therefore, we do not give any warranty for technical data, as they do not represent assured characteristics. If you have any doubt, please contact us and specify the exact operating conditions.

Weight per surface unit	kg/m²	≈ 1.67
Residual stress acc. to DIN 52 913
16 h, 300 °C	N/mm²	> 45
Swelling acc. to ASTM F 146:
in IRM 903 Oil (replaces ASTM Oil No. 3) 5 h, 150 °C
increase in thickness	%	< 5
in ASTM Fuel B 5 h, room temp.
increase in thickness	%	< 5
in water / antifreeze (50:50) 5 h, 100 °C
increase in thickness	%	< 5
Short-term peak temperature	°C	240
Operating temperature	°C	-40 up to +200

The data quoted above are valid for the material "as delivered" without any additional treatment. In view of the countless possible installation and operating conditions, definitive conclusions cannot be drawn for all applications regarding the behaviour in a sealed joint. Therefore, we do not give any warranty for technical data, as they do not represent assured characteristics. If you have any doubt, please contact us and specify the exact operating conditions.

Weight per surface unit	kg/m²	≈ 1.65
Residual stress acc. to DIN 52 913
16 h, 300 °C	N/mm²	> 45
Swelling acc. to ASTM F 146:
in IRM 903 Oil (replaces ASTM Oil No. 3) 5 h, 150 °C
increase in thickness	%	< 5
in ASTM Fuel B 5 h, room temp.
increase in thickness	%	< 5
in water / antifreeze (50:50) 5 h, 100 °C
increase in thickness	%	< 5
Short-term peak temperature	°C	300
Operating temperature	°C	-40 up to +280

The data quoted above are valid for the material "as delivered" without any additional treatment. In view of the countless possible installation and operating conditions, definitive conclusions cannot be drawn for all applications regarding the behaviour in a sealed joint. Therefore, we do not give any warranty for technical data, as they do not represent assured characteristics. If you have any doubt, please contact us and specify the exact operating conditions.