Frosted Polycarbonate Solid Sheet

Solid sheet's linear expansion performance is about 6-7 times stronger than metal. You have to expand the holds on sheet if they are installed outdoor or temperature variation outside is bigger than ±8℃. Hole diameter should be more than 2mm and larger than the screw diameter. There you should have more space reserved along the edges according to thickness of sheet. Self-tapping screws should be drilled in the middle of holes. Otherwise, due to thermal expansion or shrinkage, it will make drilled area deformed or cracked on sheet due to transformation. Visit Link: https://www.wecico.com/products/pc-solid-sheets/frosted-pc-solid-sheet.html