About Harboro Rubber Engineering in Rubber      Contents      Introduction      Uses of Rubber      Processing Rubber      Designing With Rubber      Selecting / Specifying Rubber      Quality In Rubber      Rubber Directory          Natural Rubber          EPDM          Neoprene          Hypalon®          Nitrile          Acrylic          Vamac®          Thermoplastic Rubbers (TPRs)          Silicone          Fluorocarbon          Fluorosilicone          SBR          Specialist Elastomers              Therban              Epichlorohydrin              Liquid Silicone      Health & Safety      Measuring Properties      Glossary of Terms      Request A Copy Contact Information

Therban (HNBR) Hydrogenated nitrile rubber provides good all round performance at a compound cost between Nitrile and Fluoroelastomer. Its highly saturated main chain provides good resistance against thermal oxidation and chemical attack. Properties • good physical properties, including abrasion resistance, at high temperatures • good dynamic behaviour and flex cracking resistance at elevated temperatures • excellent heat, ageing and ozone resistance • outstanding resistance to steam and hot water Limitations • no inherent flame retardency • poor electrical properties • unsuitable in contacts with aromatic and polar organic solvents Typical Applications • diaphragms requiring chemical and heat resistance • chain tensioners and seals in vehicle engines • oil exploration and production.