Fluorosilicone O-Rings Washers Gaskets Seals
Fluorosilicone Rubber Description :
Fluorosilicone rubber is a widely used elastomer that can be compounded to meet a wide range of applications. The mechanical and physical properties are very similar to silicone rubber. However, fluorosilicone offers improved fuels and mineral oil resistance but poor hot air resistance when compared with silicone. This material is widely used in semiconductor Ashing equipment for its resistance to oxygen plasma.
|Recommended Use||Not Recommended For||Mechanical Properties|
Wide Temperature Range
Some Petroleum Oils
Auto / Aircraft Brake Fluids
Poor Wear Resistance
Moderate Comp. Set Resistance
Moderate Short-Term Resilience
Poor Permeation Resistance
Popular Fluorosilicone Compounds:
Hundreds more specialty compounds available. Contact a Marco Sales Consultant or Engineer for more information.
|Marco CPD#||Color||Duro (Shore A)||Relative Price||Typical Inventory Level||High Temp (F)||Low Temp (F)||Steam < 300 F||Steam < 400 F||Compression Set||Chemical & Solvents||Sunliight, Ozone, UV||Wear Abrasion||Permeation Vacuum||Petroleum Oils & Hydraulics||Fuels & Gas||Brake Fluids|
|1 = Great 2 = Good 3 = Fair 4 = Poor|
|Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/1-### per Mil-R-25988 CL-1 GR-70, jet fuel resistance|
|Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/2, jet fuel resistance|
|Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/3, jet fuel resistance|
|Jet fuel resistance|
Fluorosilicone Trade Names:
Silastic® LS, FSE
Fluorosilicone Temperature Range:
The temperature ranges presented above are approximations for dry air service only and should not be used to determine design specifications or end-use temperature limits. Actual temperature range of a compound in an end-use application is highly dependent on part type, hardware configuration, applied forces, chemical media, pressure and thermal cycling effects, and other factors. The most practical way of determining an end-use temperature range is testing in the actual application conditions. Consult a Marco Engineer for more details.
Fluorosilicone Features and Resistances :
- Excellent flexibility and resistance to compression set
- Excellent resistance to aging and weather-sunlight
- Resistance to oxidizing chemicals, animal and vegetable oils, fuels, aromatic and chlorinated solvents
- Resistant to diluted alkalies, diester oils, aliphatic and aromatic fluorocarbons, silicone oil, toluene, benzene, ozone and oxidative environments.
Fluorosilicone Limitations :
- Brake fluids, ketones, hydrazine, adelhydes, amines, ketones
- Poor abrasion resistance