Elastomers

RU1™

RU1™ is an elastomer based on acrylonitrile-butadiene rubber, often referred to as NBR or nitrile rubber. This material has a good resistance to mineral oils and greases and HFA, HFB and HFC pressure fluids. However, the material is not resistant to glycol-based brake fluids, HFD fluids, aromatic fluids (such as benzene), esters, ketones and amines or concentrated acids and bases. RU1™ is also available in a low-temperature grade, with a minimum working temperature of – 50ºC. Temperature range from -30 ºC to 100 ºC.

RU2™

RU2™ is an elastomer based on fluororubber, VITON® (registered trade name of Du Pont), with similar properties as VITON® type B. This material is also referred to as FKM (ISO). RU2 has high resistance against heat, weathering, ozone and many chemical ingredients. RU2™ is compatible with mineral oils and greases containing sulphur, HFD pressure fluids (nearly all phosphate esters and chlorinated hydrocarbons), crude oil and sour gas. RU2™ shows excellent resistance against explosive decompression (ED). RU2™ is not resistant against anhydrous ammonia, amines, ketones, esters, hot water and low molecular weight organic acids. RU2™ is also available in a FDA compliant grade and with different hardness (75º-95º shore A). Temperature range from -20 ºC to 200 ºC.

RU3™

RU3™ is a perox-cured elastomer based on ethylene-propylene rubber, often referred to as EPDM. RU3™ has an outstanding stability against hot water, steam, washing agents, polar organic solvents and glycol based brake fluids. RU3™ is not resistant against mineral oil and other unpolar media. The stability to weathering, ozone and ageing is good. RU3™ is also available in a FDA compliant grade and a hard grade (93 º shore A). Temperature range from -50 ºC to 150 ºC.

RU4™

RU4™ is a hydrogenated or saturated acrylonitrile-butadiene rubber, often referred to as H-NBR. RU4™ is suitable for applications in aliphatic hydrocarbons like propane or butane and mineral oils and greases (for short times up to 170°C) and also for sulfonated crude oil. Furthermore, it can be used in many diluted acids and bases and salt solutions even at elevated temperatures and in glycol-water mixtures. RU4™ is not compatible with fuels with a high content of aromatic hydrocarbons (premium blend petrol), gasolines (petrol / alcohol blends) ketones, esters, ethers and chlorinated hydrocarbons like trichloroethylene and tetrachloroethylene. RU4™ complies with FDA-recommendations. RU4™ is also available in hard grade (93ºshore A), ED-grade, low-temperature grade (-40ºC) and ED/low-temperature grade (-30ºC). Temperature range from -25 ºC to 150 ºC.

RU5™

RU5™ is a silicone rubber, or VMQ. Owing to the poor mechanical properties, which are noticeably lower in comparison to other rubbers, RU5™ is mostly used for static (non-moving) applications. RU5™ is highly resistant against weathering, ozone and ageing, and also has a wide temperature range (-60 to 200 ºC). The compatibility with mineral oils depends on the content of aromatic hydrocarbons in the oil. RU5™ complies with FDA-recommendations. Temperature range from -60 ºC to 200 ºC.

RU6™

RU6™ is a tetraflourethylene-propylene material, often referred to as Aflas® (registered trade name of Asahi Glass), FEPM or TFE/P. This material is well suited against HFA, HFB, HFC and HFD liquids. In addition this material has excellent resistance against steam and hot water. Good resistance against various chemicals, and good mechanical properties means this material will often improve overall sealing effect in many systems currently using Viton® /FKM-materials or Perfluour/FFKM-materials. Temperature range from -10 ºC to 200 ºC. 

RU15™

RU15™ is a Hydrogenated Acrylonitrile-Butadiene Rubber (HNBR) ED Resistant Grade. RU15™ meets the requirements of the NORSOK M-710 standard (Rev.2, October 2001) with respect to sour fluid ageing resistance. RU15™ meets the requirements of the NORSOK M-710 standard (Rev.2, October 2001) with respect to rapid gas decompression (RGD) resistance at 150 barg and 100°C.