The characteristic profiles of elastomers

All used elastomers correspond with the current EU guidelines, in particular with the

- EU directive 2000/53/EC old car ordinance
- EU directive 2002/95/EC RoHS
- EU directive 2002/96/EC WEEE
- EU directive 2003/11/EC fire protection means.

Approvals of the automobile and foodstuff industry, KTW D1/D2, W270, UL94, colours and shore hardness upon request. With special applications rubber mixtures can be newly developed according to your needs and tested.

Galvanic coverings with used steel parts are free of Chrome VI.

International abbreviations
with link to the rubber dictionary 		NR SBR EPDM IIR CR CO/
ECO		 NBR HNBR CSM EU/
AU		 ACM/
EAM		 FPM VMQ FVMQ
Hardness range
Shore A		 30-90 35-90 30-90 30-80 25-90 40-90 30-95 45-98 45-90 55-90 40-90 40-90 30-85 30-80
Thermal
behaviour 		Cold flexible
to °C		 -55 -30 -50 -60 -35 -35 -30 -45 -30 -30 -30 -20 -65 -45
Max.
ongoing use
Temp. in °C		 80 100 130 130 100 130 110 150 130 120 150 200 200 200
Stability
against 		Petrol
 		 – – – – – – – – – – + ++ ++ + + ++ – – +++ – – +++
Mineral oil
at 100°C		 – – – – – – – – – – + +++ +++ ++ + ++ +++ +++ ++ +++
Acids (25%
sulphuric acid
at 50°C)		 – – +++ +++ ++ +++ ++ +++ +++ ++ + +++ – +
Bases (50%
sodium hydroxide
at 50°C)		 ++ ++ +++ +++ ++ ++ – – – + +++ – – – – – +++ – – +
Water
(at 100°C)		 – – – – +++ ++ + ++ ++ +++ + – – – + ++ ++ ++
Weather
and ozone 		– – +++ + ++ +++ – – +++ +++ ++ ++ +++ +++ +++
Light
 		 – – ++ + + – – +++ +++ ++ + +++ +++ +++
Gas impermeability
 		 – – – – +++ + ++ ++ ++ + ++ + +++ – – – +
+++ excellent – satisfactory
++ very good – – bad
+ good – – – insufficient