Properties and grades of elastomer gaskets

The elastomer must retain its elasticity and must neither swell nor shrink too much.
Therefore, a suitable fluid must be used for the fluid to be sealed or for the temperature that occurs
Elastomer can be used. This is extremely important!

This overview is intended to help you select suitable materials for your particular needs.

Elastomer	AWS-designation	Color	Shore hardeness (+-5)	Resistance
				Cold (°C)	Heat (°C)	Weather ageing	Ageing	Oil	Petrol	Acids	Alkalines
CR/SBR	NP 63	black	70	-20	100	X	X	X	O
CSM/EPDM	Hypalon	black	65	-10	120	X	X	X		X	X
EPDM	GIMW DIN 86076	black	68	-30	100	X	X			X	X
EPDM	EPDM 65	black	65	-40	130	X	X			X	X
EPDM	EPDM KTW	black	63	-30	100	X	X			X	X
FKM	Fluorkautschuk	black	75	-10	275	X	X	X	X	X	X
MQ	Silikon transp.	transparent	60	-60	200	X	X	O
MQ	Silikon red	red	60	-60	250	X	X
NBR	OBM	black	66	-25	80	O	O	X	O		O
NBR	GIMO DIN 86076	black	72	-25	100	O	O	X	X
NBR	PBN hart	black	90	0	130	O	O	X	X		O
NBR/Kork	RGC 257	brown	40 – 60	-20	120			X
NBR/Kork	RGC 210	brown	60 – 80	-20	135			X
NR/SBR	OL hell	light	60	-30	80		O			O	O
PUR	Vulkollan D15	natur	70/80/90	-35	120	X	X	X	X
PUR	Polyurethan D44	natur	70/80/90	-35	120	X	X	X	X
PVC	PVC	yellowish transp.	70	-20	80	X	X			O	O
SBR	G black	black	65	-35	70		O			O	O

X = resistant
O = limited resistance