
Waterproof Asj-Faced Formaldehyde-Free Fiberglass Pipe Glass Wool Tube for Hospital HVAC Systems. Formaldehyde-Free Safety: Zero formaldehyde content ensures superior indoor air quality and environmental safety. Class A Fire Rating: Meets ASTM E84 Class A standards for superior fire performance and safety. Customizable Dimensions: Available in customizable thicknesses, diameters, and lengths to suit specific projects. Excellent Moisture Resistance: Acrylic-enhanced core provides robust protection against moisture and vapor permeance. GREENGUARD Gold Certified: Certified for low chemical emissions, ensuring safe environments for schools and hospitals. Robust ASJ Facing: Aluminum-Scrim-Kraft facing offers a strong vapor barrier and professional appearance. OEM/ODM Services: Full customization available for designs, samples, and packaging requirements.