Modified Bitumen Waterproof Membrane

1. 1. Introduction:

SBS (Styrene Butadiene Styrene) modified bitumen membrane is made by saturating the base in bitumen, or thermoplastic elastomer (such as styrene butadiene-SBS), reinforced with polyester or fiberglass, finishing the upward face with fine sands, mineral slates (or grains) or polythene membrane, etc.

APP(Atactic Polypropylene) modified bitumen membrane is made by saturating the base in bitumen, or thermoplastics (such as APP, APAO, APO), then covering double faces with thermoplastic elastomer (SBS) and last finishing the upward face with fine sands, mineral slates(or grains)or polythene membrane etc. while downward face with fine sands or polythene membrane.

2. 2. Features:

1) Good tensile strength, elongation rate and size stability which could be well suited the substrate distortion and crack.

2) Good performance in anti-puncture, anti-broker, anti-resistance, anti-erosion, anti-mildew, anti-weathering.

3) Good impermeability, flexibility, anticorrosion, non-toxicity.

4) SBS modified bitumen membrane is specially applied in the cold area with low temperature resistance.

5) APP modified bitumen membrane is more suitable for hot area with high temperature resistance.