50mm x 45mStrong, flexible aluminium foil tape on silicon paper liner for use on most surfaces. Aggressive acrylic-based adhesive, flame retardant and excellent temperature performance. Use for jointing insulation panels, sealing off air conditioning and cool/warm air flow ducting, sealing joints in ducting providing a flame-retardant vapour proof barrier. Also ideal for general repairs to gutters, downpipes, ducting and other surfaces. UV-resistant and waterproof. Temperature range from -20° to +100°.