HDPE Impermeable membrane has a very high tensile strength,tear strength,elongation at break is very large,wide application HDPE Impermeable ... ≥25≥304Elongation at break, %≥700≥7005Elongation at yield, %≥13≥136Angle tear strength, N≥210≥2497Punctured strength, N≥550≥7008Carbon black content, %≥2.0 ...