I must say it is very impressive craftsmanship that you managed to get that window sealed in. Not a lot of people manage that. I have seen bad cases even with glass. With acryllic I don't think I have seen one success before. May I ask how you did that? Did you put the glass into place first and then fill in silicone in the gap? Or did you use the regular technique with putting on the silicone and then pushing the glass into it? Also, did you sand the acryllic first, and did you sand the epoxy?