RUBRINGS / TECHNICAL LIBRARY

Typical properties of rubber

Compare the supplied reference values for rubber density, glass-transition temperature and indicative maximum service temperature.

The properties at a glance.

These indicative values come from the Rubrings material reference. They describe broad material families, not tested specifications for a finished Rubrings product.

Density Mg/m³, numerically equal to g/cm³Tg Glass-transition temperature; not a minimum service ratingService temperature Indicative reference, dependent on compound and application

Typical reference values supplied for the website
Common name	Abbreviation	Density Mg/m³	Tg °C	Indicative max. service °C
Natural rubber	NR	0.92	−75	70
Polyisoprene	IR	0.92	−75	70
Polybutadiene	BR	0.90	−85	70
Styrene butadiene rubber	SBR	0.93	−55	70
Butyl rubber	IIR	0.92	−65	100
Acrylonitrile butadiene rubber	NBR	0.98	−40	100
Polychloroprene rubber	CR	1.23	−50	120
Ethylene propylene diene rubber	EPDM	0.86	−55	125
Chlorosulfonated polyethylene	CSM	1.18	−50	125
Ethylene propylene rubber	EPR	0.87	−55	149
Chlorinated polyethylene	CM	1.18	−40	150
Acrylic elastomers¹	ACM / AEM	1.18	−40	150
Silicone rubber¹	MQ	0.98	−110	225
Fluoroelastomers¹	FKM / FFKM	1.82	−30	250

¹ The supplied reference groups ACM/AEM and FKM/FFKM and uses MQ for silicone. These are not interchangeable compound specifications. Verify the individual grade and test method before applying the values. No universal pressure rating is implied.

Turn a material name into a specification.

Confirm the actual compound, hardness, medium, working temperatures, pressure, dimensional tolerances and test conditions. For engineering use, a grade-specific datasheet takes precedence over this introductory chart.

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