A 30 micron high tensile strength aluminum foil backing, combined with a cold weather solvent acrylic adhesive, protected by an easy-release silicone release paper.

Applications include HVAC industry for joining and sealing Foil-Scrim-Kraft Facing laminated fiberglass blanket /duct board joints and seams; joining and sealing flexible air duct seams and connections.

General purpose holding, patching, sealing and masking applications.  SP401 meets the requirements of UL723:2008  Class ‘O’ rated when tested to BS476 on foil faced insulation panels.

 FEATURES

• Aluminium backing provides excellent reflection of both heat and light.
• Cold weather adhesive with moderate adhesion offers good sealing and bonding on FoilScrim-Kraft Facing joints and seams in HVAC ductwork application.
• Good aging resistance both indoors and outdoors.
• Low moisture vapour transmission rate offers excellent sealing and patching performance.