Les Industries Pro-Tac Inc.
445, rue Jean-Clermont St-Célestin, QC J0C 1G0 - (819) 229-1288
PTI Rubber & Gaskets Inc.
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Rubber Caracteristics

This rubber caracteristics chart is provided as a guide only. Your technical advisor is available to help you choose the best product for your application.

Comparative chart of product features

Natural rubber SBR
(BUNA-S, GRS)
Neoprene Nitrile
(BUNA-N)
EPDM
(EPT, EPR)
Silicone Viton®
CHEMICAL
NAME
Polyisoprene Styrene
butadiene
Polychloroprene Acrylonitrile
butadiene
Ethylene-
propylene-
diene
terpolymer
Polysiloxane Fluorinated
hydrocarbon
SAE 1200 & ASTM D-2000 Designation AA AA, BA BC, BE BF, BG, BK BA, CA FC, FE, GE HK
ASTM D-1418 Designation NR SBR CR NBR EPDM VMQ FKM
Minimum
Temperature
-55ºC
(-67ºF)
-55ºC
(-67ºF)
-40ºC
(-40ºF)
-40ºC
(-40ºF)
-55ºC
(-67ºF)
-65ºC
(-85ºF)
-40ºC
(-40ºF)
Maximum
Temperature
50ºC
(122ºF)
70ºC
(158ºF)
100ºC
(212ºF)
100ºC
(212ºF)
120ºC
(275ºF)
225ºC
(437ºF)
225ºC
(437ºF)
Usual Shelf
Life
3-5
years
3-5
years
5-10
years
5-10
years
5-10
years
Up to
20 years
Up to
20 years
Advantages Outstanding elasticityGood flexibility at low temperatures Very good flexibility at low temperatures
  • Good resistance to flame
  • Very good resistance to weather, ozone and natural aging
  • Very good resistance to alkalis and acids
  • Very good resistance to oils and fuel
  • Superior resistance to petroleum–based hydraulic fluids
  • Wide range of service temperatures
  • Very good resistance to alkalis and acids
  • Excellent heat, ozone and sunlight resistance
  • Very good flexibility at low temperatures
  • Good resistance to alkalis and acids, and solvents
  • Superior resistance to water and steam
  • Flexible at extreme temperatures
  • Low compression setExcellent ultraviolet, weather and ozone resistance
  • Inert, odourless, tasteless and non‑toxic
  • Excellent resistance to a wide variety of oils, fuel, solvents and acids at high temperatures
  • Very good impermeability to gases and steam
  • Very good weather, ozone and sunlight resistance
Limitations
  • Poor heat, ozone and sunlight resistance
  • Very little resistance to oils, fuel and to hydrocarbon solvents
  • Poor heat, ozone and sunlight resistance
  • Very little resistance to oils, fuel and to hydrocarbon solvents
  • Poor to low resistance to aromatic solvents
  • Limited capacities at low temperatures
  • Low resistance to ozone, sunlight and natural aging
  • Poor resistance to polar solvents
Poor resistance to oils, fuel and to hydrocarbon solvents
  • Poor abrasion and tear resistance
  • Poor resistance to solvents, alkalis and acids
Will be severely attacked by certain solvents such as esters, ethers and acetates
PHYSICAL PROPERTIES
Tensile
Strength
E F-G VG VG F-G VG VG
Ultimate
Elongation
VG-E G G G G VG-E F-G
Compression
Set
G G F-G G G VG-E VG-E
Heat
Resistance
F F-G F-G G VG-E E E
Resistance to
Flame
P P G P P F-G VG-E
Resilience E F-G VG F-G G G F
Abrasion
Resistance
E VG-E VG-E VG-E VG-E P-F F-G
Water
Resistance
E VG-E G VG-E E VG-E G
CHEMICAL RESISTANCE PROPERTIES
Acids F-G F-G G G G F B
Alcohol G G VG F-G F-G G F-G
Animal and vegetable oils F F G VG G G E
Oils and fuel P P F-G G-E P P-F E
Hydrocarbon solvents P P G E P P-F E
Oxygenated solvents G G P-F P VG F P

Legend

  • E = EXCELLENT
  • VG = VERY GOOD
  • G = GOOD
  • F = FAIR
  • P = POOR

This data and information are intended as guides only. Complete data on physical properties of products are available on request. Performance may vary within a rubber category depending on the compounds available.

Viton® is a registered trademark of Dupont.