2 X 50YD ALUM FOIL TAPE UL

2-mil, dead soft foil; UL 723 Listed all weather, natural rubber-based adhesive, non-contaminating, siliconized, flat, white paper release liner. Excellent for preventing heating and cooling loss; blocks moisture and odors; recommended for HVAC and refrigeration system applications. Meets requirements of UL 723 - Flame Spread Index 10; Smoke Development Index 5.