3"x150' THERMAX WHITE FOIL TAPE
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Thermax™ White Foil Tape (3" x 150')
Professional-Grade Sealing for a Seamless Finish
Achieve a permanent, moisture-resistant seal with our Thermax White Foil Tape. Specifically engineered to match white-faced polyisocyanurate (polyiso) insulation boards, this heavy-duty tape ensures your insulation system maintains its thermal integrity while looking clean and professional.
Whether you are sealing joints in a crawlspace, basement, or commercial interior, this tape provides the ultimate barrier against air infiltration and vapor.
Key Features
Perfect Color Match: Designed specifically to blend seamlessly with white foil-faced insulation (like Dow Thermax™ or Rmax), providing a "hidden" seam look.
All-Weather Adhesive: Features a high-tack, cold-weather acrylic adhesive that bonds instantly to foil, metal, and plastic.
Vapor & Moisture Barrier: Provides an airtight seal that prevents thermal bridging and protects against mold-inducing moisture buildup.
Superior Durability: Flame-retardant and UV-resistant, ensuring the tape won’t yellow, crack, or peel over time.
Extra Wide Coverage: The 3-inch width provides ample surface area to cover gaps and uneven joints more effectively than standard 2-inch tapes.
Technical Specifications
| Feature | Specification |
|---|---|
| Width | 3 Inches |
| Length | 150 Feet |
| Color | High-Gloss White |
| Backing | Reinforced Aluminum Foil |
| Adhesive | High-Performance Acrylic |
| Application Temp | -20°F to 200°F+ |
Best Used For:
Sealing joints and seams on Thermax™ and other white-faced foil insulation.
Repairing punctures in vapor barriers.
HVAC duct sealing where a white aesthetic is required.
Enhancing energy efficiency in residential and commercial builds.
Pro Tip: For the strongest bond, ensure the insulation surface is free of dust and oil before application. Use a plastic squeegee or seam roller to apply firm pressure.