I'm in the process of redoing my upholstery in my 1995 sea ray 175 sterndrive. My question, what is the best thing to use for the backing? It had what appears to be white plexiglass sort of plastic. Will thin starboard work if heated and bent? I was told no by a starboard dealer. My thoughts is its polymer so heat and cool in shape would work, anyone ever used this or have any input?