I got a sheet of acrylic, I ask for cast. But its got blue plastic sheild instead of paper. Somebody told me that its probley exdruded and it smells worse than cast when cut. And this stuff is rank. I need to seal up my exaust system better. But if cast dosnt smell a lot less I don't wanna waste more money gettin it. I'm a hobbist with neighbors and don't wanna bug them. What's your opinion of cuttin cast in this situation.