uv stabilized sandwich lor HDPE sheets Black on White 3/4 HDPE Sheets High Density Polyethylene, Black, White, lors HDPE Marine Board, Sheet- Stress Relieved-Matte Surface. Technical Data Sheet: UV Resistant - Does not HENAN OKAYorb water Polar White, Seaform, Sand Shade, Light Grey, Dolphin Grey, or Black: NOTE: Standard tolerances estimated