About the mixture

We use different kinds of rubber compounds in the manufacture of rubber products, as we alter them according to the requirements the product has to meet....

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Natural Rubber – NR (SMR)

Rubber is an organic substance, predominantly cis-1,4-polyisoprene, an elastomer (an elastic hydrocarbon polymer), which is obtained from certain tropical plants, mostly from rubber trees (Hevea brasiliensis), with the process of incising the bark of the tree, causing a milky-white latex sap to come out. Rubber trees grow in large plantations

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SBR (styrene-butadiene rubber, buna SB, cariflex S)

SBR is a synthetic rubber, obtained by polymerization of styrene and butadiene. Its properties are similar to those of natural rubber, however it is distinguished from it by improved wear resistance, and is therefore often used instead of natural rubber. Also widely used is a mixture of natural and synthetic

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EPDM (ethylene-propylene-diene rubber, buna AP, keltan, dutral, EP, EPT, EPR)

Ethylene-propylene-diene rubber is an amorphous synthetic rubber, obtained by copolymerization of ethylene, propylene and a small share of diene monomer. It is often used for sealing brake systems, and also to seal hot water or steam. However it is advised to avoid contact of EPDM with petroleum oils, mineral oils

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IIR (isobutylene-isoprene rubber or butyl rubber, bucar, PIB)

This is a synthetic rubber, obtained by copolymerization of isobutylene with 1-3 % of isoprene. It is gas-tight, so it is usually used in airtight products. Its most noticeable characteristics are extremely high ozone resistance and good wear resistance. Usage: car and bicycle inner tubes, gaskets, membranes, anti-vibration components. Advantages:

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CR (neoprene, chloroprene rubber, bayprene)

Neoprene is a synthetic rubber, obtained by polymerization of chlorobutadiene. Its most significant characteristics are great tensile strength, high resistance to hydrolysis and moderate resistance to petroleum oil, oxygen, ozone, UV radiation, salt and aging. Besides that it is non-flammable and does not swell in mineral oils. Unlike many other

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CO/ECO (epichlorohydrin rubber, hydrin)

This is a synthetic rubber, obtained by polymerization of epichlorohydrin (type CO), by copolymerization of epichlorhydrin and ethylene oxide (ECO) or by polymerization of epichlorhydrin, ethylene and diene (type ether). It is very resistant to mineral oils, changing weather conditions and ozone. Vulcanization of this type of rubber requires a

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NBR (nitrile, acrylic nitrile-butadiene rubber, buna-N)

Nitrile is the most commonly used elastomer in terms of the manufacture of polymers, rubber, synthetic fibers etc. Nitrile rubber (NBR) is a synthetic rubber, obtained by copolymerization of acrylonitrile and butadiene. The content of acrylonitrile in nitrile sealing mixtures substantially varies (from 18% to 50%) and affects the physical

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HNBR (hydrogenated nitrile, hydrogenated acrylonitrile-butadiene rubber)

HNBR is a rubber, obtained by binding hydrogen onto acrylonitrile-butadiene rubber. It has similar features to NBR, however it is much more resistant to high temperatures and oxidation. Its wear resistance and high mechanical durability are also improved. It is widely used in the food and pharmaceutical industries due to

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CSM (chlorosulphonated polyethylene rubber, hypalon)

This is a synthetic rubber used in the manufacture of voluminous products and it is obtained by processing polyethylene in a solution of chlorine and sulfur dioxide. It’s highly resistant to various weather conditions (UV, ozone, oxygen), water, acids and alkalis, chemicals, as well as to high and low temperatures.

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EU/AU (polyurethane rubber, polyester urethane)

This is a synthetic rubber, which contains urethane groups in the main chain, and it is the most commonly used polymer in the manufacture of foam. It is air-permeable and therefore returns to its original condition after the mechanical stress ceases. Its main characteristics are good heat insulating capacities and

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FKM (fluoro rubber, viton, FPM, fluorine, tecnoflon)

This rubber is resistant to a wide range of chemicals, aging, ozone and oxygen and has an extremely large temperature span. It is highly resistant to mineral oils and grease. The content of fluorine dictates its degree of resistance to temperature and chemicals, thus it can be controlled. It is

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VMQ (PVMQ, silicone rubber)

The basic monomer unit of polyorganic silicone rubber is dimethylsiloxane, which belongs to the group of elastomeric materials made of silicon, hydrogen, oxygen and carbon. It is very resistant to high and especially to low temperatures, as well as to aging, UV radiation, all weather conditions, oxygen, moisture and ozone.

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FVMQ (fluorosilicone rubber)

This is a synthetic rubber, obtained by polymerization of methyl-trifluoropropyl-siloxane or with copolymerization of methyl-trifluoropropyl-siloxane and methyl-vinyl-ketone. Fluorosilicones possess most of the properties of silicone along with resistance to petroleum oils and hydrocarbon fuels. Decreasing the maximum temperature (200 ° C) is recommended when using certain oils and fuels, as

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The History of Rubber and Rubber Products

Rubber is the fundamental ingredient of gum and it was used by the Native Americans in the manufacture of balls as early as in the 4th century. It gained popularity in Europe in the 18th and beginning of 19th century, with the emergence of production of rubber products such as

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