
Waterproof Backing Board for Exterior Walls in Building Construction. Fireproof and Waterproof: Features fireproof, waterproof, lightweight, and environmentally friendly properties. Customizable Specifications: Thickness 10-100mm, color (blue, green, white), and stress tolerance 350kPa are customizable. High Production Capacity: Monthly production capacity ranges from 50,000 to 100,000 units. One Year After-Sales Service: Provides one year of after-sales service for the product. Level B1 Fire Rating: Meets Level B1 combustion performance standards for safety. Free Sample Availability: Free samples are provided, with shipping costs borne by the buyer. Dual-Base Manufacturing: Operates R&D in Zhengzhou and production in Hejian for efficient supply. Eco-Friendly Material: Made from XPS material, ensuring environmental friendliness and energy saving.