Properties of various elastomers, which we process with years of experience on state-of-the-art equipment:
Elastomer Natural rubber Styrene-butadiene-rubber Acrylonitrile butadiene rubber Chloroprene rubber Polybutadiene Butyl rubber Chlorosulphonated polyethylene Silicone rubber Ethylene propylene terpolymer Polyisoprene rubber
International designation* NR SBR NBR CR BR IIR CSM Si APTK/EPDM IR
Trade names* Buna, Cariflex, Europrene, Ameripol, Sypol, Krylene, Pliofelx Perpunen, Burtakon A, Polyser-Krynac, Europren, Hycar Neoprene, Bayprene Butyl Hypalon Silicone, Siloprene AP, APTK, Bistralon, Dutral, Epcar, Keltan, Nordel, Vistalon
Shore A hardness range 25 – 100 40 – 100 30 – 100 40 – 95 45 – 80 30 – 100 50 – 95 30 – 85 40 – 90 40 – 100
Tensile strength max. kp/cm² 250 – 300 250 250 250 150 – 200 200 180 80 250 250 – 275
Temperature application range °C -60/120 temporary -40/130 temporary -40/130 temporary -40/140 temporary -90/130 temporary -30/150 temporary -50/160 temporary -90/200 Duration -35/180 temporary -60/120 temporary
Ageing resistance – ✓ – ✓✓ – ✓✓ ✓✓✓ ✓✓ ✓✓✓ –
Properties
Elasticity ✓✓✓ ✓✓ ✓ ✓ ✓✓✓ ✗✗✗ – ✓ – ✓✓✓
Structural strength ✓✓✓ – – ✓ – ✓ ✓ – – ✓✓✓
Abrasion ✓✓ ✓✓ ✓✓ ✓✓ ✓✓✓ ✓ ✓ – ✓ ✓✓
Electrical properties insulating, antistatic or also conductive setting possible
Resistance
Alkalis ✓ ✓ ✓ ✓ ✓ ✓✓ ✓✓ – ✓ ✓
Food** ✓ ✓ ✓ ✓ ✓ ✓ not recommended
 ✓ ✓ ✓
Solvent aliphatic ✗✗✗ ✗✗✗ ✓✓ ✓ ✗✗✗ ✗✗✗ – – ✗✗✗ ✗✗✗
Solvent aromatic ✗✗✗ ✗✗✗ – ✗ ✗✗✗ ✗✗✗ ✗ – ✗✗✗ ✗✗✗
Solvents halogenated ✗✗✗ ✗✗✗ ✗ ✗ ✗✗✗ ✗✗✗ ✗ – ✗✗✗ ✗✗✗
Oils ✗✗✗ ✗✗✗ ✓✓✓ ✓ ✗✗✗ ✗✗✗ ✓ ✓ ✗✗✗ ✗✗✗
Acids ✓ ✓ – ✓ ✓ ✓✓ ✓✓ – ✓ ✓
Water ✓ ✓✓ ✓✓ – ✓ ✓✓ – ✓ ✓ ✓
* Abbreviations according to ASTM-D 1418-67 or DIN 7728
**Health assessment of plastics and other polymers under the Food Act.
The stated properties are only to be taken as a guideline. No guarantee can be given, as in practical use it is possible that the
depends on temperature, concentration, etc.
Explanation of signs: ✓✓✓ excellent ✓ good/suitable ✗ bad
✓✓ very good – moderate ✗✗✗ Not suitable