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Construction Material Used (Contd..)

Silicon (VMQ)

It has the best Cold flexibility, Good Insulating properties, Excellent heat resistance, Good Ozone and weathering resistance.Some of its additional features are:

• TEMP: -50⁰C to 232⁰C
• Chemical Resistance: Aging, Ozone, Weathering, Grease, Animal & Vegetable oil, Moderate Resistance to Mineral Oil

Fluorosilicone (FVMQ)

It offers improved fuel & oil resistance in comparison to regular Silicon (VMQ), with Mechanical and Physical properties remaining the same.

• TEMP: -70⁰C to 175⁰C

Polyurethane (AU)

It has highest Tensile strength, Wear resistance and Elasticity. These are used in high volume applications in seals for hydraulic cylinders. Some of its additional features are:

• TEMP: -30⁰C to 80⁰C
• Chemical Resistance: Aging, Ozone, Mineral Oil, Water (up to 50⁰C), Aliphatic Hydrocarbons

Styrene-Butadiene Rubber (SBR)

Also known as 'BUNA S'. Some of its features are:

• TEMP: -40⁰C to 105⁰ C
• Chemical Resistance: Alcohol, Water, Non-Mineral Oil fluid, Silicon oil & Grease, Weak Acids

Chloroprene Rubber

It exhibits good Aging, ozone, chemical, abrasion & flex fatigue resistance. Some of its additional features are:

• TEMP: -40⁰C to 120⁰C
• Chemical Resistance: Water and its solvents, Silicon Oil and Grease, Ammonia and Carbon Dioxide, Refrigerants, Ozone, Weathering and Aging

Chlorosulfonated Polyethylene

Chlorine in this Polymer imparts resistance to Flame & Mineral Oils and also improves cold flexibility. Its salient features are as follows:

• TEMP: -20⁰C to 120⁰C
• Chemical Resistance: Water, Aging, Oxidising Media, Grease, Many Acids

It exhibits unique resistance even in harshest environments to Acids, Steam, Alkalis, Ketones. Its salient features are as follows:

• TEMP: -25⁰C to 300⁰C
• Chemical Resistance: Aromatic and Chlorinated Hydrocarbons, Aliphatic, Organic and In-Organic Acids, Water, Steam & Vacuum

Tetrafluoroethylene – Propylene

It has excellent chemical resistance to wide range of materials.Its salient features are as follows:

• TEMP: -5⁰C to 232⁰C
• Chemical Resistance: Engine Oil, Bases, Steam, Radiation, Amines Phosphate Esters