Page 31 - 2010-2022 hose manufactureing ability and guide
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FKM                      Fluoroelastomer                      Fluorocarbon rubber                Excellent high temperature resistance, particularly in air or
                                                                                                                                                      oil. Very good chemical resistance.

                 HNBR                   Hydrogenated                          Hydrogenated                           Excellent high temperature and oil resistance.
                             nitrile                                       acrylonitrile-butadiene

                 IIR                         Butyl                                        Isobutylene-isoprene               Very good weathering resistance. Low permeability to air.
                                                                                                                                                      Good physical properties. Poor resistance to petroleum
                                                                                                                                                      based fluids.

                 IR                           Polyisoprene                            Polyisoprene,                            Same properties as natural rubber (see NR below).
                                                                                                   synthetic

                 MQ                        Silicone                                   Dimethylpolysiloxane             Excellent high and low temperature resistance. Fair physical
                                                                                                                                                      properties.

                 NBR                      Nitrile                                      Acrylonitrile-butadiene           Excellent  resistance  to  petroleum based fluids. Moderate
                                                                                                                                                      resistance to aromatics.  Good physical properties.

                 NR                         Natural rubber                         Polyisoprene,                            Excellent  physical  properties including abrasion and  low
                                                                                                   natural                                      temperature resistance. Poor resistance  to  petroleum  based
                                                                                                                                                      fluids.

                 SBR                       SBR                                         Styrene-butadiene                   Good  physical  properties, including  abrasion resistance.
                                                                                                                                                      Poor resistance to petroleum based fluids.

                 T                            Thiokol                                    Organic polysulfide                 Outstanding  solvent resistance  and weathering resistance.
                                                                                                                                                      Other properties poor.

                 XLPE                     Cross-linked                            Polyethylene and                      Excellent chemical resistance with good heat and electrical
                                                     polyethylene                         cross linking agent                  properties.

                 XNBR                   Carboxylated                           Carboxylated acrylonitrile-     Excellent oil and abrasion resistance.
                                                 nitrile                                       butadiene

                                                       Plastics Used in Hose
                 ASTM
                 Designation
                 D1600                    Common Name                      Composition                            General Properties

                 PA                         Nylon                                       Polyamide                                Good abrasion, chemical and fatigue resistance. Good long
                                                                                                                                                      term resistance to high temperature. Low gas permeation and
                                                                                                                                                      low coefficient of friction.

                 PE                          Polyethylene                            Polyethylene                             Excellent dielectric properties. Excellent resistance to water,
                                                                                                                                                      acids, alkalis and solvents. Good abrasion and weathering
                                                                                                                                                      resistance.

                                                 UHMWPE                                  Ultra high molecular                  Excellent resistance to a broad range of chemicals, excellent
                                                                                                    weight polyethylene                   abrasion resistance.

                 PVC                       PVC                                         Polyvinyl chloride                    Good weathering, moisture and flame resistance. General
                                                                                                                                                      resistance to alkalis and weak acids. Good abrasion
                                                                                                                                                      resistance.

                                                 Polyester                                  Thermoplastic                          Good flex fatigue and low temperature properties. High
                                                                                                   polyester resin                          resistance to deformation.  Good resistance to abrasion,
                                                                                                                                                      chemicals, hydraulic fluids and aromatic fuels.

                                                 Thermoplastic                         Thermoplastic                          Good weather and aging resistance. Good for water and
                                                 Rubber                                     polyolefins and block              dilute acids and bases.
                                                                                                   copolymers of styrene
                                                                                                   and butadiene

                 PTFE                     Fluoropolymer                         Fluorocarbon resin                  Excellent high temperature properties and chemical
                                                                                                                                                      resistance.




                RMA/IP-2/2003                                                                             10
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