| BUTYL | IIR | ISOBUTYLENE-ISOPRENE | - Very good weathering resistance
- Excellent dielectric properties
- Low permeability to air
- Good flex properties
- Poor resistance to petroleum-based fluids
| Resistant To:- Animal and vegetable oils
- Fats
- Oxygenated solvents
- Alkalis
- Ozone
- Strong acids
Attacked By:- Petroleum oils/fluids
- Coal tar
- Diester-based lubricants
- Aliphatic and aromatic hydrocarbons
|
| EPDM | EPDM' EPM | ETHYLENE-PROPYLENE-DIENE MODIFIED | - Excellent ozone chemical weather
- UV and aging resistance
- Poor resistance to petroleum-based fluids
| Resistant To:- Animal and vegetable oils
- Ozone
- Strong and oxidizing chemicals
- Brake fluids
- Hydraulic fluids
Attacked By:- Mineral oils
- Solvents
- Aliphatic and aromatic hydrocarbons
|
| NATURAL RUBBER | NR | ISOPRENE NATURAL | - Excellent physical properties including abrasion and low temperature resistance
- Poor resistance to petroleum-based fluids
| Resistant To:- Most moderate chemicals
- Wet or dry organic acids
- Alcohols
- Ketones
- Aldehydes
Attacked By:- Ozone
- Strong acids
- Fats
- Oils
- Petroleum derivatives
- Hydraulic fluids
|
| NEOPRENE | CR | CHLOROPRENE | - Good weathering resistance
- Resilience and abrasion strength
- Flame retarding
- Moderate resistance to petroleum-based fluids
| Resistant To:- Moderate chemicals and acids
- Ozone
- Fats
- Gasoline
- Greases
- Vegetable oils
- Refrigerants
- Steam
Attacked By:- Strong oxidizing acids
- Esters
- Ketones
- Chlorinated aromatic and nitro hydrocarbons
|
| NITRILE | NBR | NITRILE-BUTADIENE | - Excellent resistance to petroleum-based fluids
- Good physical properties such as resistance to tear, abrasion, and heat aging
| Resistant To:- Many hydrocarbons
- Fats
- Oils
- Gasoline
- Hydraulic fluids
- Chemicals
Attacked By:- Ozone
- Strong acids
- Fats
- Most hydrocarbons
- Oxidizing chemicals
|
| POLYISOPRENE | IR | ISOPRENE SYNTHETIC | - Excellent resilience characteristics equal to or similar to those of natural rubber
- Tensile strength is slightly lower than the tensile strength of natural rubber
| Resistant To:- Most moderate chemicals
- Wet or dry organic acids
- Alcohols
- Ketones
- Aldehydes
Attacked By:- Ozone
- Strong acids
- Fats
- Oils
- Petroleum derivatives
|
| SBR | SBR | STYRENE BUTADIENE | - Good electrical insulation and resistance to alkalis, oxygenated solvents, and mild acids
- Similar properties to natural rubber but has superior low-temperature flexibility
- Abrasion resistance to petroleum-based fluids
| Resistant To:- Moderate chemicals
- Wet or dry organic acids
- Alcohols
- Ketones
- Aldehydes
Attacked By:- Ozone
- Strong acids
- Fats
- Oils
- Petroleum derivatives
|
| SILICONE | Q'SI | POLYSILOXANE | - Excellent high and low temperature properties
- Excellent vibration damping and maintains dielectric strength
- Poor tensile, tear, and abrasion resistance
- Good fatigue resistance
- Non-toxic and odorless
| Resistant To:- Moderate or oxidizing chemicals
- Ozone
- UV light
- Moisture
- Fungus
- Steam
Attacked By:- Many solvents
- Concentrated acids and alkalines
- Fuels
- Steam
|
