: Sound & Heat Insulation Sound Insulation 50mm Thick Waterproof Rock Wool 40kg Board

: Sound & Heat Insulation Sound Insulation 50mm Thick Waterproof Rock Wool 40kg Board. High Thermal Efficiency: Thermal conductivity ranges from 0.036 to 0.044 W/mK for superior insulation. Waterproof Performance: Moisture sorption is less than 1% by weight, ensuring long-term durability. Customizable Length: Product length is fully customizable while width remains fixed at 1200mm or 600mm. Multi-Application Usage: Suitable for exterior/interior tiles, industrial thermal, and sandwich door panels. Comprehensive Certifications: ISO9001, ISO14001, En13162, and OHSAS18001 certified for quality and safety. Free Sample Availability: Free samples provided, though buyers typically cover delivery costs. 1-Year Warranty Coverage: Includes 1-year warranty with online technical support for all products.