A1 Fireproof Formaldehyde Free Rock Wool Insulation Material.

A1 Fireproof Formaldehyde Free Rock Wool Insulation Material. Class A Fireproof Rating: Non-combustible material meeting Class A fire safety standards for maximum protection. High Water Repellency: Water repellency rate reaches 98%, ensuring excellent moisture-proof performance. Customizable Dimensions: Supports customization of length, width, thickness, and core density for specific projects. Superior Sound Absorption: Effective noise reduction and sound insulation for workshops and building interiors. Fast Production Lead Time: Standard stock goods ready in 14 days; customized orders in 15-22 working days. Free Test Samples: Buyers receive free small samples, only covering express freight costs. Comprehensive Certifications: Products certified with ISO, CE, and ASTM standards for global compliance.