31. All portable cords are usually comprised of thermoset, thermoplastic elastomer , or thermoplastic. 32. Jaw couplings elastomers are wearing elements that do need to be inspected and replaced. 33. It is made of a rubbery plastic called thermoplastic elastomer which is FDA approved. 34. Both of these elastomers undergo strain crystallization. 35. Embrittlement or shrinkage is the common mode of failure of elastomers with exposure to ozone. 36. Ozone cracking is the common mode of failure of elastomer seals like O-rings. 37. Because of its chemical inertness, PTFE cannot be cross-linked like an elastomer . 38. Mountain bikes have made use of elastomer suspension, as did the original Mini car. 39. The elastomer skirt provides a seal between the lenses and the diver's face. 40. Another key improvement was to connect them to a short piece of silicone elastomer tubing.
