Silicone is a type of synthetic elastomer which has excellent heat, ozone, oils, solvent & chemicals, its also has dielectric stability which makes it a favourite elastomer in electrical applications.
Curing: Usually standard silicone compounds are peroxide-cured, however for better flexible properties platinum-cured compounds are preferred.
Properties : Silicone rubber has good resistance to extreme temperatures being able to operate between -50°C to 200°C, due to its inert properties it does not react with most chemicals and is used extensively in medical applications.
- Food & Pharma
Temperature : - 50°C to 232° C
Compatible : To Oils, Diluted Salt Solution Applications, Dry-Heat, Ozone & Weather resistance.
Not Compatible : To Petrol Based Oils & Fuel, High Steam, Concentrated Alkalis & Acids.
Chemical Resistance : Ozone, Aging, Weathering, Animal & Vegetable oil, Grease, Moderate Resistance to Mineral Oil.
ASTM CLASSIFICATION: FC/FE/GE
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FVMQ ( Fluoro Silicone) rubber has properties very similar to silicone rubber, however it offers added resistance to mineral oils & fuels because of which it is widely used in aerospace applications.
Fluorosilicone gives very good low & high temperature properties and because its inert in nature have good resistance to Ozone & UV.
Properties : Fluorosilicone rubber gives excellent resistance against weathering, ozone and sunlight making it the most favourite polymer in aviation industry. This polymer also gives best resistance to many oils, solvents has good extreme temperature capabilities.
- Aviation Fuels
- Dry Heat Applications
- Oils & Solvents
Temperature : -60 °C to 225 °C
Compatible : To Oils, Oxidizing Chemicals, Ozone & Weather resistance, solvents which are aromatic and chlorinated.
Not Compatible : To Phosphate Esters, Amines ( Ammonia ), Some Acids, MEK.
Chemical Resistance : Aviation Fuels, Weathering, Animal & Vegetable oil, Dry Heat, Certain Petroleum Oils & Chlorinated Solvents.
ASTM CLASSIFICATION: FK
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OLYURETHANE have the highest Wear resistance, Tensile strength and Elasticity. They have high volume applications in seals for hydraulic cylinders.
Temperature : - 30°C to 80° C
Chemical Resistance : Ozone, Aging, Mineral Oil, Aliphatic Hydrocarbons, Water (upto 50 Degrees C).
STYRENE-BUTADIENE RUBBER (SBR)
SBR previously known as ' BUNA S' was first produced as a replacement to natural rubber.
Temperature : - 40°C to 105° C
Chemical Resistance : Water, Alcohol, Non-Mineral Oil fluid, Silicon Oil and Grease, Weak Acids.
CHLOROPRENE RUBBER (CR - NEOPRENE®)
Neoprene (CR, Polychloroprene) is a very versatile synthetic rubber which is produced by polymerising of chloroprene. Because of its various resistances and toughness this elastomer is used in varied industries & applications out of which the maximum usage is in the automotive industry.
Properties : Neoprene® rubber has good to excellent resistance to abrasion, sunlight, ozone, petroleum derivatives & oxidation, at the same time it is also resistant to weather, water & many chemicals.
- Mass Transit Industry
- Construction industry (Bridges)
- Wire & Cable Industries
- Sealing Purpose
- Marine & Aquatic Accessories
Temperature : - 30°C to 120° C
Compatible : To Heat, Oils, Ozone, Weather, Water, Flame Resistant.
Not Compatible : To Sulphuric & Hydrochloric Acid, Wet Chlorine, MEK, Propane, Toluene.
Chemical Resistance : Acetone, Salt Water, Ammonium Hydroxide, Oils ( Fuel, Transformer, Vegetable), Sodium Hydroxide, Carbon Dioxide, Natural Gas.
ASTM CLASSIFICATION: BC, BE
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