black and clear construction geomembrane,made of LDPE, LLDPE,good tensile ... , 6mil, 8mil, 10mil.Width: 6m, 8m, 12m, 16m,COLOR: black, clear, or white.Purpose : used for building , waterproof , anti-leakage. roofing, dam ... , tear resistance , puncture resistance, excellent elongation and break at tear . black HDPE,LDPE construction film