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Through innovative material formulations and structural designs, it significantly reduces the weight of the board while maintaining excellent waterproof performance, alleviating the load - bearing burden of buildings. It is widely applicable to various construction scenarios, including residential, commercial, and industrial buildings, providing a more convenient and efficient solution for spatial waterproof protection.The main features of lightweight waterproof backer board are light weight. Compared with traditional concrete slabs, it can be 30-50% lighter, with a density of less than 600kg/m³. It has a stable surface and good adhesion properties, and is compatible with a variety of decorative materials, whether it is tiles, stone, paint, or wall panels.

Lightweight waterproof backer boards have high strength, enhanced waterproof performance, fire retardancy, improved structural safety, good weather resistance, and can extend the life of buildings. These characteristics are inseparable from the composition structure of lightweight waterproof backer boards.

Core Waterproof Layer

High - molecular composite membranes, such as thermoplastic polyolefin (TPO) or ethylene - vinyl acetate copolymer (EVA), are used as the core waterproof materials. TPO membranes feature outstanding weather resistance and impermeability, maintaining stable waterproof performance within a temperature range of - 40°C to 120°C. EVA materials, with their high flexibility and strong adhesion, closely conform to the surface of the base layer, blocking the pathways of water vapor penetration. Some high - end products further enhance their waterproof performance by applying a multi - layer composite process with nano - scale waterproof coatings.

Lightweight Reinforcement Layer

To ensure strength and stability, the lightweight reinforcement layer commonly uses honeycomb - structured polystyrene (EPS) or extruded polystyrene (XPS) cores, which are wrapped with fiberglass mesh cloth or aramid fiber non - woven fabric. The honeycomb structure design reduces the weight significantly while maintaining mechanical properties, and the fiberglass and non - woven fabric enhance the board's tear and impact resistance, preventing damage during handling and installation.

Protective Surface Layer

The protective surface layer often adopts water - based acrylic coatings or polyurea coatings, combining waterproof, wear - resistant, and decorative functions. Water - based acrylic coatings have good weather resistance and self - cleaning properties, facilitating daily cleaning and maintenance. Polyurea coatings, known for their high strength and toughness, can effectively resist external scratches and collisions, extending the service life of the Lightweight Waterproof Backer Board.

Lightweight waterproof backer boards offer versatility and are suitable for a variety of renovation scenarios, primarily in the following areas:

Wet Area Protection

Primarily used in kitchens, bathrooms, and basements, their closed-cell structure and hydrophobic coating provide long-term resistance to moisture penetration, preventing mold and delamination of the base layer.

Partition Systems

Like suspended ceilings, their lightweight design reduces structural loads, making them ideal for renovations in high-rise buildings or older structures.

Exterior Wall Decoration

Lightweight waterproof backer boards are highly weather-resistant and can be used outdoors, offering protection against UV rays, wind, and rain. Available in custom thicknesses beyond just 1220mm × 2440mm × 1300mm, they further expand their application areas.

Commercial Spaces

For commercial spaces, we prioritize aesthetics, and their ease of installation makes them suitable for redesigning commercial spaces.