Import App /Sbs Modified Bituminous Sheet — Buy in Bulk from Supplier in China

The APP and SBS modified bituminous sheet is a polymer-enhanced waterproofing membrane designed for flat and low-slope roofs, basements and foundations. This listing offers sheets with reinforcement options in polyester, glass fibre or compound materials, engineered to resist UV degradation, thermal cycling and chemical exposure. The material’s elasticity allows it to accommodate structural movement without cracking, a critical feature for long-term performance in variable climates.

Modified bitumen sheets are produced by blending bitumen with atactic polypropylene (APP) or styrene-butadiene-styrene (SBS) polymers to improve flexibility and durability. Typical industry grades include APP for heat resistance in warm regions and SBS for cold-weather elasticity, with standard thicknesses ranging from 3 mm to 5 mm. The sheets are usually supplied in rolls of 1 m width and 10 m to 20 m length, with a standard weight of 3 kg/m² to 5 kg/m² depending on reinforcement and polymer type.

Contractors and builders use these membranes for new construction and refurbishment projects where reliable waterproofing is required. Common applications include commercial flat roofs, residential basements and civil infrastructure such as tunnels and bridges. The lightweight nature of the material simplifies handling and installation, while compliance with international standards such as ASTM D6164 or EN 13707 ensures consistency. Buyers should confirm roll dimensions, reinforcement type and polymer blend to match project specifications.

Weifang Hongyuan Waterproof Materials Co., Ltd is based in Shouguang, Weifang, Shandong Province, China. The company specialises in manufacturing waterproofing materials, including modified bituminous sheets for construction applications. Its address places it in a region known for building material production, with access to logistical hubs for domestic and international distribution.

The supplier is classified under the imported tier with a harbor trust tier, indicating it is an established exporter. While the listing does not provide response rate data, the company’s focus on waterproofing solutions suggests a targeted product range. Buyers should verify certifications, production capacity and quality control processes directly with the supplier, as these details are not specified in the available profile.