Does anyone have experience mounting artifacts to Sintra aka Palight? I have never used this PVC sheet material before. This would be in a sealed case, long term exhibit. Backboards and risers are to be made of painted 3/4" Sintra. I just received some samples, and at first look it appears to hold a screw well but not a pressure fit rod. I have concerns. Any advice would be most appreciated. Best, Gina