Yeah I believe that is a completely different class of compounds Richard. I just looked up Viton types of synthetics and they use a lot of flourine in production. The Glock, HK, Beretta, Ruger and Smith & Wesson polymer framed pistols I have use Nylon 66 for the frame. Some of the other Rugers use a glass filled Nylon that is also very strong but less flexible. I used to know the proprietary designation but can't recall right now.