VMQ, PMQ, or PVMQ Silicone Rubber
- Abbreviation: VMQ, PMQ, PVMQ
- ASTM D-2000 Classification: FC, FE, GE
- Chemical Definition: Polydimethylsiloxane
Physical & Mechanical Properties
- Durometer or Hardness Range: 20 – 90 Shore A
- Tensile Strength Range: 200 – 1,500 PSI
- Elongation (Range %): 100% – 900%
- Abrasion Resistance: Poor to Good
- Adhesion to Metal: Good
- Adhesion to Rigid Materials: Good
- Compression Set: Good to Excellent
- Flex Cracking Resistance: Poor to Good
- Impact Resistance: Poor to Good
- Resilience / Rebound: Good to Excellent
- Tear Resistance: Poor to Good
- Vibration Dampening: Fair to Good
Chemical Resistance
- Acids, Dilute: Fair to Good
- Acids, Concentrated: Poor to Fair
- Acids, Organic (Dilute): Good
- Acids, Organic (Concentrated): Fair
- Acids, Inorganic: Fair to Good
- Alcohol’s: Fair to Good
- Aldehydes: Good
- Alkalies, Dilute: Poor to Good
- Alkalies, Concentrated: Poor to Excellent
- Amines: Good
- Animal & Vegetable Oils: Good to Excellent
- Brake Fluids, Non-Petroleum Based: Good
- Diester Oils: Poor to Fair
- Esters, Alkyl Phosphate: Good
- Esters, Aryl Phosphate: Good
- Ethers: Poor
- Fuel, Aliphatic Hydrocarbon: Poor to Fair
- Fuel, Aromatic Hydrocarbon: Poor
- Fuel, Extended (Oxygenated): Poor
- Halogenated Solvents: Poor
- Hydrocarbon, Halogenated: Poor
- Ketones: Poor
- Lacquer Solvents: Poor
- LP Gases & Fuel Oils: Fair
- Mineral Oils: Poor
- Oil Resistance: Fair
- Petroleum Aromatic: Fair
- Petroleum Non-Aromatic: Good
- Refrigerant Ammonia: Excellent
- Refrigerant Halofluorocarbons: Poor
- Refrigerant Halofluorocarbons w/ Oil: Poor
- Silicone Oil: Poor
- Solvent Resistance: Poor
Thermal Properties
- Low Temperature Range: -178º F to -90º F
- Minimum for Continuous Use (Static): -170º F
- Brittle Point: -178º F to -60º F
- High Temperature Range: +400º F to +550º F
- Maximum for Continuous Use (Static): +550º F
Environmental Performance
- Colorability: Excellent
- Flame Resistance: Fair to Excellent
- Gas Permeability: Poor to Fair
- Odor: Good
- Ozone Resistance: Excellent
- Oxidation Resistance: Excellent
- Radiation Resistance: Poor to Good
- Steam Resistance: Fair to Good
- Sunlight Resistance: Excellent
- Taste Retention: Good to Excellent
- Weather Resistance: Excellent
- Water Resistance: Excellent
For assistance in identifying the appropriate polymer or material, or to develop and formulate a silicone rubber compound to meet your specific application and performance requirements, please contact Rahco Rubber, Inc. at sales@rahco-rubber.com or 847-298-4200.
Rahco Rubber, Inc. makes no expressed or implied warranty as to any qualities, attributes, or characteristics of any polymer or material. This information is provided for reference only.