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Properties vulcanized rubber / polymer Application examples Natural rubber
(cis 1.4 Polyisoprene from bio synthesis)
General purpose rubber with balanced physical properties. Non-ageing and weathering resistant only with suitable stabilization. Tires, conveyor belts, moulded articles of all kinds Isoprene rubber
(cis 1.4 Polyisoprene from technological synthesis)
Like NR Like NR Butadiene rubber or polybutadiene BR Buna CB General purpose rubber almost exclusively used in cuttings. High elasticity, drive stability and cold flexibility. Compound element: use similar to NR Butadiene/styrene rubber
(copolymeride made of butadiene /styrene)
SBR Buna SB
Frequently used general purpose rubber. Non-aging and weathering resistant only with suitable stabilization. Tires, belts, moulded and extrusion artcles Chloropren
(trans 1.4 polychlorbutatiene)
Rubber with a relatively high resistance to flames, weather and aging. Medium resistance to oil and fuel. Belts, v-belts, moulded and extrusion articles Nitrile rubber
(copolymeride made of butadiene) (Acrylonitrile)
NBR Buna N High swelling resistance to oil, fat and fuel. Degrees of resistance, elasticity and cold flexibility depend on the acrylonitrile content. Oil, fat and fuel resistant articles, roller coatings, hoses Hydrogenated nitrile rubber HNBR Perbunan There are also hydrogenated types (HNBR) with higher resistance to ozone and aging. EPDM rubber
(terpolymere made of ethylene/propylene and diene component)
EPDM Buna AP
High resistance to aging, weather and heat. High resistance to boiling water, steam, washing and flushing agent. Moulding and extrusion articles Butyl rubber
(copolymer made of isobutylene and little isoprene)
IIR Butyl rubber High air- tightness, good damping properties and heat resistance. There are also special halogenated types (BIIR, CIIR). Car and bicycle tubes, antivibration components Chlorhydrine rubber
(polyepochlorhydrine, copolymerizate with ethylene oxide where appropriate)
Hydrin High resistance to oil, fat, fuel, heat and oxygen. Oil, fat and fuel resistant articles Chlorosulfonated polyethylene CSM Hypalon Similar to EPDM yet better swelling resistance to oil, fat and fuel. High resistance to chemicals and flames. Moulding and extrusion articles, roller coatings, container linings Acrylate rubber
ACM Hytemp Excellent resistance to oil,
fat and fuel especially to hypoid oil. Low cold flexibility.
Moulding articles Fluoro rubber
(copolymer made of fluorinated
FPM Viton ®
Moulding articles, container linings Moulding articles, container linings Silicone rubber
(polymethylsiloxane with phenyl and/or vinyl groups where appropriate)
VMQ Likonsil High resistance to aging, weather and heat. Extremely high cold resistance. Medium resistance to oil and fuel spray Food qualities, medical pharmaceutical articles Fluorosilicone Rubber FVMQ Likonsil-F High resistance to aging, weather and heat. Extremely high cold resistance. High resistance to oil and fuel. Perfluoro Rubber FFKM Isolast ® Thermoplastic elastomers TPEiner linings TPE/TPU/TPSi Varies articles, container linings Moulding,overmoulding and extrusion articles
In the laboratories special compounds are delevoped when standard qualities do notfulfill specific requirements.
Compound properties are constantly tested with special equipment to assure compliance with specifications.
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