Acrylonitrile Butadiene, NBR Nitrile, Carboxylated Nitrile, Hydrogenated Nitrile, Fluorocarbon, Mumbai,

ACRYLONITRILE BUTADIENE (NBR - NITRILE)

Also known as Acrylonitrile Butadiene Rubber / Buna-N / Nitrile is a copolymer of acrylonitrile & butadiene, in which acrylonitrile content differs from 18% to 50% (more the quantity of nitrile higher will be the resistance, however the flexibility gets lower).

NBR (Nitrile) can be classified into 3 categories s below:

High Nitrile: Acrylonitrile (ACN) content of over 45%

Medium Nitrile: Acrylonitrile (ACN) content between 30% to 40%

Low Nitrile: Acrylonitrile (ACN) content less than 30%

Properties : NBR (Nitrile) rubber has good to excellent resistance to abrasion, tear @ solvent/oils, however it has poor resistance to weathering, sunlight & ozone.

Applications :

• Oil & Fuel
• Hydraulic Oils
• Low Temp Application
• Sealing Purpose
• Automotive & Aeronautical

Temperature : -30° C to 100° C

Compatible : To Oil, Fuel, other chemicals & more

Not Compatible : To Ozone, MEK & hydrocarbons with chlorine & nitro contents.

Chemical Resistance : Propane, Butane, Petroleum, Mineral Oil, Grease, Diesel Fuel, Fuel Oils,HFA,HFB,HFC Fluids, Dilute Acids, Alkali, Salt Solutions and Water.

ASTM CLASSIFICATION: BF, BG, BK

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CARBOXYLATED NITRILE (XNBR)

Carboxylated Nitrile (XNBR) has better tear and abrasion resistance compared to NBR as this polymer is derived by modifying Nitrile with carboxyl group.

Properties : XNBR exhibits good physical properties and enhanced tensile strength as against NBR in high temperatures.

Applications :

• Oil & Fuel
• Textile Industry
• Pumps

Temperature : -30° C to 150° C

Compatible : To Mineral & Vegetable oils, Water, Diesel, Diluted Acids/Alkalis & Greases.

Not Compatible : To Ketones, Brake Fluids, Chlorinated Hydrocarbons, Ethylene Ester & Acetic Acid.

Chemical Resistance : Diluted Acids & Alkalis, Fuel, Aliphatic Hydrocarbon, Mineral Oils, LP Gases, Fuel Oils, Petroleum, Refrigerant Ammonia and more.

ASTM CLASSIFICATION: BF, BG, BK

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HYDROGENATED NITRILE (HNBR)

Hydrogenated Nitrile Butadiene Rubber (HNBR), as the name suggests it is a hydrogenated version of NBR, It has better physical strength and retention properties to chemicals, heat & oil as compared to NBR.

Properties : HNBR has better resistance to oil, gases & steam as compared to NBR, and also has less degradation over longer period in harsh temperature environments, Also this polymer can provide very good tensile strength depending on loading and filler selections.

Applications :

• Automotive
• Industrial
• Paper Mills
• Gas Industries

Temperature : -40° C to 160° C

Compatible : Oils, Gases, Oxidized Fuels, Acids

Not Compatible : Ketones, Esters & Ethers, Chlorinated Hydrocarbons & Strong Acids.

Chemical Resistance : Weathering, Ozone, Water, Salt Solutions, Diluted Acids, Vegetable Oils & Aliphatic Hydrocarbons.

ASTM CLASSIFICATION: DH

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FLUOROCARBON (FKM - VITON ®)

Also known as Fluoro Elastomer, Fluorocarbon, FKM, FPM is a synthetic rubber with fluorine as one of its main components. Its is a known high-performance elastomer with very good resistance to high temperatures, many oils and diluted acids.

Standard Viton®: Details of fluorine content.

• A – Family : fluorine content 66%
• B & GBL-S – Family : fluorine content 68%
• F & GF-S – Family : fluorine content 70%

Speciality Viton®: Details of fluorine content.

• S – Family : fluorine content 64% - 67%

Speciality Viton® Extreme™ : Details of fluorine content.

• TBR-S : fluorine content 60%
• ETP-S : fluorine content 67%

Properties : Viton® has good resistance to abrasion, tear & heat stability, and excellent solvent & oil resistance. Good compression set.

Applications :

• Sealing purpose
• Automotive & Aeronautical
• Food & Pharma Industry (FDA Approved)
• Lubricating & fuel oils
• Alcohols
• Diluted Acids

Temperature : -20°C to 204° C

Compatible : To Hot & Cold Water, Alkalis, Hydraulic Fluids, Ketones, Ozone

Not Compatible : High Temp Steam, Formic and Acetic acids, Ketones, Phosphate ester-based fluids.

Chemical Resistance : Mineral Oil, Grease, Non Flammable Hydraulic Fluids, Aliphatic and Aromatic Hydrocarbons Ozone Weathering, Aging, High Vacuum, Steam and Alcohol.

ASTM CLASSIFICATION: M

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