Material | Hardness(A) | Temperature(℃) | Advantage | Disadvantage | Application |
Silicone | 10-90 | -40~250 | - waterproof
- Anti-chemical
- High light Transmittance
- Anti-UV
- Electrical
- Anti-UV
| - Low tensile
- Not anti-abrasion and tearing
- Not anti-fuel oil
- Not anti benzene
| Applied in Electronic, Medical,Food. E.g. silicone keypad, silicone tableware, medical-grade silicone tube |
NR | 20-100 | -20~100 | - Anti-oil, Hydroxide liquids such as ethanol
- Anti-abrasion, anti-tensile, flexibility
- Resistant alkali but not resistance acid
| - Easy Aging
- Become viscosity when heated
- Easy to expansion in mineral oil
| Applied in Tire, shoes |
NBR | 30-100 | -10~100 | - Anti-oil, waterproof
- ageing resistance
- Wear resistance
| | Applied in anti oil seal, grommet |
HNBR | 60-90 | -40~150 | - Wear resistance
- tensile
- heat resistance
- anti-ozone
- Anti-corrosion, Anti-chemical
- Anti-deformation
| - Not resist alcohols, esters & aromatic solution
| For automotive and refining industries.E.g. Intake duct, air conditioner seal |
CR | 20-90 | -40~100 | - Flexibility, anti-deformation
- Fireproof and flame resistant
- Anti-edible oil, Anti-UV, Anti-Ozone
| - Not resistance strong acid
| Applied in household appliances. E.g. Seal, Grommet, Waterproof tape |
IR | 20-100 | -50~120 | - Less impurities, transparent color
- Anti-aging
| | For shoes, medical parts. E.g. pacifier |
FKM(VITON) | 50-90 | -15~300 | - Anti-oil
- Anti-Ozone
- Heat-resistant
- Electrical insulation
| - Expensive, not resistant strong alkali
- Not low temperature resistance
- Not resist esters, Ketones
| Applied in high temperature circumstances, drug resistance. E.g. Seal used in waterproof lamp |
EPDM | 40-90 | -55~125 | - High temperature resistance, anti-aging, anti-Ozone, flexibility
- Anti ethanol and esters
- Anti-Ozone & oxidation
| | Applied in wiper strips, gaskets, etc. |