APP Modified Bituminous Waterproofing Membrane

This APP modified bituminous waterproofing membrane is installed using torch-applied welding methods.

The lower surface of the membrane is heated until the bitumen layer melts, allowing it to bond securely to the substrate. Seams are also heat-welded to form a continuous waterproof layer with high sealing integrity.

The polyester reinforcement (polyester mat) provides high tensile strength, typically ≥500 N/50mm, and ensures resistance to structural movement.

The membrane also exhibits sufficient elongation, allowing it to accommodate minor substrate cracking without rupture.

Surface finishes may include polyethylene film, fine sand, or mineral granules depending on application requirements.

APP membranes are optimized for high-temperature environments. In contrast, SBS modified bitumen membranes are more suitable for low-temperature regions due to superior flexibility.

Therefore, APP systems are typically recommended for warm and hot climate zones, while SBS systems are preferred in colder regions.

Our factory has over 12 years of experience in manufacturing APP and SBS modified bituminous waterproofing systems. We operate 4 production lines with an annual capacity of approximately 10 million square meters.

We are ISO9001 certified and maintain in-house laboratory testing facilities.

We have supplied products to major infrastructure contractors including China Railway and China State Construction.

We provide OEM services, free samples, and a 1-year warranty. Each roll undergoes full inspection before packaging.

The minimum order quantity is 100 square meters per specification.