The two coils of the production process is basically the same, the difference is that the following points:
Both waterproofing membranes are polymer modified bitumen waterproofing membranes, but with different modifiers: SBS (styrene-butadiene-styrene) and SBS as a waterproofing membrane modifier Thermoplastic styrene-butadiene rubber; APP waterproofing membrane modifier is APP (atactic polypropylene).
2. The difference between the two types of coil due to the modifier of its construction scope is also different, SBS waterproofing membrane can be -25 at +100 ℃ temperature range, with high elasticity and fatigue resistance, especially for Low temperature and cold areas and structural deformation of the building waterproofing works.
The APP waterproofing membrane has a higher resistance to aging, high temperature performance, especially for hot water construction in the construction area, as well as heat-resistant properties have special requirements waterproof construction.