What do you guys think of 1/8" fiberglass fabric. Mcmaster sells it in 3" or 4" or 6" wide by 10 ft long for about $12.60. Thinking of buying some and cutting out the center hole. Mcmaster part# is 8817k892, max temp is 1000deg. Could always stack 2 high if not thick enough. Could make like 40 gaskets out of one piece. Yea or Nay?