Atlantic Precision Resource

Rubber Material & Characterstics
MATERIAL
PHYSICAL
PROPERTY		 SBR,
STYRENE
BUTADIENE,
GRS		 NATURAL RUBBER
EPDM,
ETHYLENE
PROPYLENE,
EPR,
EPT		 NEOPRENE,
CHLOROPRENE,
CR		 NBR,
BUNA-N,
BUNA-NITRILE,
NITRILE		 SILICONE
ASTM D-2000
Classification		 AA, BA AA CA BC, BE BF, BG, BK FC, FE, GE
APR MATERIAL CODE 1 2 3 5 6 8
DUROMETER RANGE SHORE "A" 35 -90 20 - 95 35 -90 20 - 90 20 - 90 20 - 90
LOW TEMP RANGE (F) -75 to -55 -70 to -40 -75 to -40 -70 to -30 -70 to 0 -170 to -90
HIGH TEMP RANGE (F) 210 to 250 180 to 220 220 to 300 200 to 250 210 to 250 400 to 550
MAX TENSILE STRENGTH (PSI) 2000 - 2500 3500 - 4000 2500 - 3000 2500 - 3000 1000 - 3000 600 - 1500
MAX ELONGATION % 450 - 500 500 - 600 500 - 600 600 - 800 400 - 600 100 - 1000
IMPACT STRENGTH EXC EXC GOOD GOOD FAIR POOR - GOOD
ADHESION TO METAL EXC EXC GOOD - EXC EXC EXC GOOD - EXC
VIBRATION DAMPING FAIR - GOOD EXC FAIR - GOOD GOOD - EXC FAIR - GOOD FAIR - EXC
RESILIENCY FAIR - EXC EXC GOOD FAIR - GOOD GOOD GOOD - EXC
IMPERMEABILITY TO GAS FAIR GOOD FAIR - GOOD FAIR - GOOD FAIR - EXC POOR - FAIR
ABRASION GOOD - EXC GOOD - EXC GOOD GOOD - EXC GOOD - EXC POOR - GOOD
CHEMICAL/FUEL POOR POOR FAIR - GOOD GOOD EXC POOR
FLAME POOR POOR POOR GOOD - EXC POOR FAIR - EXC
FLEX CRACKING GOOD - EXC EXC GOOD GOOD GOOD POOR - GOOD
HEAT AGING GOOD FAIR - GOOD GOOD - EXC GOOD - EXC GOOD EXC
OIL POOR POOR POOR GOOD - EXC EXC FAIR - GOOD
OXIDATION FAIR -EXC GOOD EXC GOOD - EXC GOOD EXC
OZONE POOR POOR GOOD - EXC GOOD - EXC FAIR - GOOD EXC
STEAM FAIR - GOOD FAIR - GOOD EXC FAIR - GOOD FAIR - GOOD FAIR - GOOD
SUNLIGHT POOR POOR EXC GOOD - EXC POOR - GOOD EXC
TEARING FAIR -EXC GOOD - EXC FAIR - GOOD GOOD - EXC GOOD - EXC POOR - GOOD
WATER SWELL EXC FAIR EXC GOOD EXC GOOD - EXC
WEATHER AGING FAIR - GOOD POOR EXC FAIR - GOOD FAIR - GOOD EXC