oh god. no.
if you're set on that, I bid you good day sir. lol.
if you have an account on airsoftmechanics, there is a thread on the silicone vs sorbo thing:
http://forums.airsoftmechanics.com/i...1223.msg132481
the among the fellows here making all the counter points are a plastics engineer and a guy that's a lot smarter than most smart people. lol. Not exactly sure of his academic background, but he's contributed greatly to the airsoft aftermarket world.
You can go ahead and try though.
*shrug* your money and your time, just trying to save some of it.