AF-20R... Insulation/HVAC
2 mil dead soft premium grade Aluminum Foil coated with an
extremely aggressive synthetic rubber adhesive that provides a
tight positive grab when smoothed down on work surfaces; removable
paper liner, total thickness 3.6 mil without liner. Used in fiberglass
duct board systems on seams & joints to maintain the integrity
of the vapor barrier. Can also be used on FSK systems. Malleable
foil conforms well to irregular & curved surfaces. Tensile strength:
17.8 lbs/in. Elongation: 3.5%. Peel adhesion: 98 oz/in. Temperature
range: -4F to 176F. 3 neutral core.
