Examples of polymers suitable either alone or in blends include elastomeric materials, for example silicone or {HEAD ~ EPDM}; thermoplastic polymers, for example polyethylene or polypropylene; {TAIL ~ adhesives}, for example those based on ethylene vinyl acetate; thermoplastic elastomers; gels; thermosetting materials, for example epoxy resins; or a combination of such materials, including co polymers, for example a combination of polyisobutylene and amorphous polypropylene, epichlorohydrin polymers, fluoroelastomer polymers, and blends of epichlorohydrin and fluoroelastomer polymers 
Examples of polymers suitable either alone or in blends include elastomeric materials , for example silicone or { HEAD ~ EPDM } ; thermoplastic polymers , for example polyethylene or polypropylene ; { TAIL ~ adhesives } , for example those based on ethylene vinyl acetate ; thermoplastic elastomers ; gels ; thermosetting materials , for example epoxy resins ; or a combination of such materials , including co polymers , for example a combination of polyisobutylene and amorphous polypropylene , epichlorohydrin polymers , fluoroelastomer polymers , and blends of epichlorohydrin and fluoroelastomer polymers
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