•Description◦APP-PYS is a waterproofing modified bitumen base sheet consisting of atactic polypropylene (APP) or amorphous poly-α-olefin (APAO, APO) modified asphalt reinforced with polyester fiber covering with sand surfacing ◦There have three kinds of thickness: 3, 4 and 5mm •Where to use:◦Roofs and undergrounds ◦Pools, such as swimming pools, fire pools ◦Subways, tunnels, concrete roads or bridge surfaces ◦Sewage plants, garbage burying projects ◦Penstocks •Advantages:◦The combination of glass fiber and APP modified bitumen is showed excellent performance on waterproofness ◦It will be a high-strength membrane to resist water ◦Puncture-resisting, tear-resisting, corrosion-resisting, mould-resisting and weather-resisting ◦Good dimensional stability ◦High-temperature resistance (130°C) ◦Convenient to apply: use heat fusion method in all seasons •Packaging: APP-PYS material is packed in rolls with plastic bags •Transportation: in order to prevent inclination or lateral drift, APP-PYS material can not be put vertically in double-level •Cover with cloth when it is necessary •Application method:◦Surface preparation ◦Surfaces should be dry, clean, smooth and free from any dusts, oil or loose particles ◦Cracks and surface irregularities need to be filled by polymer mortar •Priming: before membrane laying, substrate treating agent need to be brushed evenly and completely cover all laying places •Membrane laying: for adhesion between membrane and substrate or membranes, it can use hot melt method or cold adhesion method •According to application designs and specific applied parts, it can be applied by fully adhered method, strip adhered method and border adhered method •Sealing, fixing and constraining on vertical surfaces •On vertical surfaces, fix with metal battens and seal with sealants for membranes •Application on protection and isolation layer: after membrane laying, apply on protection and isolation layer according to waterproof layer design