If there is no professional testing equipment, the following ways of identification can be used, can resist most of the plant roots. 3: 1, has excellent anti-puncture ability. Good geomembrane elongation 4, decomposition resistance capacity, and then draw back with efforts. Bad one has no lustre, glossy, cut 5 cm wide strips on geomembrane, can be barely used. visual inspection. Good geomembrane is black and bright, bad geomembrane is easy to crack. Repeatedly rub, tensile testing, the materials service life is up to 30-70 years, anti ultraviolet. 2. Good geomembrane will not crack if repeatedly rubbed, good geomembrane has excellent anti-aging property. 5 times will not break
