The Nu-Calgon Spray-N-Bond LV Aerosol designed for insulation and duct liner applications, this high-performance adhesive excels on uneven or porous surfaces, effortlessly bonding weighty materials like insulation and duct liners. Waterproof, flexible, transparent, and non-staining, it's perfect for both temporary and permanent bonds. Plus, it's environmentally friendly, containing absolutely no chlorinated solvents or ozone depleters.