Material Selection
The chart below lists commonly used elastomers, indicating their relative physical properties and resistance to environmental factors. It can be used as a general guide to help you decide which type of rubber may be best suited for your application. The experts at Poly Seal Industries can help you determine what material is exactly right for your product.
| Base elastomer |
NR |
IR |
SBR |
IIR |
BR |
EPDM |
CR |
NBR |
PU |
SI |
CSM |
AC |
FL |
| Max temperature |
212 |
212 |
225 |
250 |
212 |
300 |
250 |
250 |
250 |
550 |
250 |
350 |
350 |
| Min temperature |
-60 |
-60 |
-60 |
-50 |
-80 |
-60 |
-40 |
-60 |
-65 |
-160 |
-40 |
-20 |
-20 |
| Max tensile (psi) |
4000 |
4000 |
3500 |
3000 |
3000 |
3000 |
4000 |
4000 |
8000 |
1500 |
2800 |
2200 |
2400 |
| Max elongation % |
700 |
750 |
700 |
700 |
700 |
300 |
600 |
600 |
700 |
800 |
500 |
400 |
350 |
| Compression set |
G |
F |
G |
F |
F |
F |
G |
G |
E |
VG |
G |
G |
VG |
| Resilience |
O |
O |
G |
F |
O |
G |
E |
G |
VG |
G |
G |
G |
F |
| Abrasion resist |
E |
E |
E |
VG |
E |
VG |
E |
E |
O |
P |
E |
G |
G |
| Flame resist |
VP |
VP |
VP |
VP |
VP |
VP |
G |
P |
P |
G |
G |
P |
E |
| Weather resist |
F |
F |
F |
VG |
F |
E |
VG |
F |
E |
E |
E |
VG |
E |
| Ozone resist |
VP |
VP |
VP |
E |
VP |
O |
E |
VP |
E |
E |
O |
E |
O |
| Water swell |
G |
E |
E |
E |
E |
E |
G |
E |
F |
VG |
3 |
F |
4 |
| Acid resist |
G |
G |
G |
E |
G |
VG |
G |
G |
P |
F |
E |
F |
VG |
| Gasoline resist |
VP |
VP |
VP |
VP |
VP |
VP |
G |
E |
E |
P |
F |
E |
E |
| Oil resist |
VP |
VP |
VP |
VP |
VP |
VP |
G |
VG |
VG |
P-VG |
G |
E |
O |
| Synthetic lubricant (Diesters) |
P |
P |
VP |
F |
P |
P |
VP |
G |
VP |
P |
VP |
G |
G |
| Hydraulic Fld. (silicate) |
VP |
VP |
P |
F |
VP |
G |
G |
F |
NK |
VP |
G |
G |
G |
| Hydraulic Fld. (phosphate) |
P |
P |
VP |
G |
P |
VG |
VP |
VP |
VP |
G |
P |
VP |
VP |
| Bond rating |
E |
E |
E |
VG |
E |
VP-G |
VG |
VG |
G |
VG |
G |
G |
F |
- NR - Natural Rubber
- IR - Synthetic Polyisoprene
- SBR - Styrene Butadiene
- IIR - Butyl
- BR - Polybutadiene
- EPDM - Ethylene Propylene
- CR - Chloroprene/Neoprene
|
- NBR - Nitrile
- PU - Urethane
- SI - Silicone
- CSM - Hypalon
- AC - Acrylic
- FL - Fluoroelastomers (Viton)
| Ratings:
- VP - Very Poor
- P - Poor
- F - Fair
- G - Good
- VG - Very Good
- E - Excellent
- 0 - Outstanding
| 
