Fireproof Calcium Silicate Board for Air Duct – High-Quality Calcium Silicate Board

Need fireproof boards for air ducts? Our Calcium Silicate Board is a high-quality Fireproof Calcium Silicate Board, perfect for air passage fire protection. 100% asbestos-free, it’s non-toxic and eco-friendly, with excellent fireproof performance. Lightweight and easy to install, it effectively blocks fire spread, suitable for all air duct fireproof projects.