41. This technology allows the printing of full color prototypes, overhangs, and elastomer parts. 42. A polydimethylsiloxane ( PDMS ) elastomer stamp is subsequently replica molded from the resist patterns. 43. This is the reason such a material is called a thermoplastic elastomer ( TPE ). 44. The elastomer film moves back to its original position when it is short-circuited. 45. Silicones and acrylic elastomers are other alternatives. 46. PEBA is a high performance thermoplastic elastomer . 47. This is only an approximation since a true value is not really valid for elastomers . 48. Ozone-resistant elastomers include EPDM, fluoroelastomers like Viton and polychloroprene rubbers like Neoprene. 49. As a countermeasure, PDMS elastomers often are reinforced by carbon nanotubes and sepiolite mineral. 50. In low to medium-vacuum applications, these are sealed with elastomer o-rings.