Precautions for Polyethylene Polypropylene Composite Waterproofing

Polyethylene composite waterproofing membrane should avoid contact with chemical substances such as acid, alkali, mineral oil, petrolatum which affect the performance of polyethylene, and avoid contact with high temperature above 80 ℃ in order to avoid the coil permanent deformation. Transportation and storage, should pay attention not to damage the packaging, placed in a ventilated, dry place, storage stack should not be more than five flat heights, from the date of production, storage period of 1 year.