For jobs that call for high-strength vapor retarder sealing on foil-faced insulation systems, the Prosource FSK Insulation Facing Tape delivers durable performance with a professional finish. Built to support FSK-faced insulation and jacketing systems, this foil-scrim-kraft tape combines aluminum foil, reinforced fiberglass scrim, and kraft paper for a robust backing that resists punctures and tears while maintaining a continuous vapor barrier.
The Prosource FSK insulation facing tape comes in a 2.83 in x 150 ft roll with a silver foil finish to match foil-faced insulation and jacketing systems. The reinforced foil-scrim-kraft backing provides strength and durability while delivering a clean, uniform appearance on finished installations.
The high-tack adhesive ensures reliable adhesion to foil and other insulation facing surfaces, helping to seal insulation seams in HVAC ductwork, metal buildings, and industrial assemblies. Contractors trust FSK tape to maintain insulation integrity and moisture control, especially in environments where heat or humidity could compromise lesser tapes.
FSK Insulation Tape Key Attributes
- Comes in a 2.83 in x 150 ft roll for standard seam coverage on faced insulation systems
- Silver foil finish matches common FSK facings and delivers a clean, consistent look
- Strong bond for sealing seams, joints, and repairs on foil-faced insulation
- Reinforced foil-scrim-kraft backing helps resist tearing and punctures
- Conforms well to curves and irregular surfaces for tight, professional seams
- Helps maintain vapor retarder continuity at seams to support moisture and condensation control
- Compatible with Prosource insulation facings
This FSK insulation tape’s reflective surface also improves aesthetic continuity and helps enhance the overall insulation assembly’s performance. Flexible enough to conform to irregular shapes yet tough enough to handle rigorous job site use, it’s a go-to solution for FSK insulation sealing and repairs.


