Aluminum foil tape, adhesive: silicone coated on the back side and water-based acrylic adhesive on the closed side, backing: with liner, features: easy application, good moisture and fire resistance, excellent temperature and aging resistance, applications: good for sealing joints/seams against moisture and vapor in aluminum siding insulation, suitable for many other permanent sealing, holding, splicing or masking applications that require the protection offered by an aluminum foil.