Is there problems about product quality? is it a new material? soldering temperature is also a problem.
Try to choose new materials to produce geomembrane
genrally, the four edges of composite geo-membrane produced by factory is left with 10 cm welding edge for the welding of composite geo-membrane. customers can confirm whether the composite geo-membrane is produced by new materials through the left welding edges, the new material is bright and transparent, but the reused edge is dim and yellow. two producing technologies of composite geo-membrane: pressed laminating technology and composite technology. composite geo-membrane's welding edge produced by rolling lamination process is generally smooth and bright, but the composite geo-membrane produced by composite technology is wrinkle and lacks of lights.both two can reach the standards, GB/T17642-2008, composite geo-membrane users can choose the raw materials bby themselves.
