4x8 White Black lored Plastic High Density Polyethylene HDPE Sheet Manufacturers. Material: Polyethylene. Thickness: 0.8mm - 30mm. Width: ≤2000mm. Length: Customized. lor: White, Black, Green or customized. Surface: Glossy, Rough, Smooth, Textured. Service: Cutting, Drilling, Vacuumm forming.