Aluminum Foil Tape

Aluminum Foil Tape is a high-performance pressure-sensitive tape made from a dead-soft aluminum foil backing coated with a solvent-based acrylic or synthetic rubber adhesive. It combines the reflective, conductive, and barrier properties of aluminum with instant-bonding adhesive technology, making it the standard solution for HVAC duct sealing, thermal insulation jacketing, EMI/RFI shielding, and vapor barrier repair.

Unlike plastic-based tapes, aluminum foil tape remains dimensionally stable under extreme temperature swings, reflects radiant heat, and blocks moisture vapor transmission — earning it a place in both construction crawlspaces and aerospace cleanrooms.

Send An Inquiry

Detailed Introduction

Features：

100% Dead-Soft Aluminum Foil: Conforms tightly to irregular surfaces, elbows, joints, and corners without lifting or puckering.
Vapor Barrier: Impermeable to moisture vapor (≤ 0.01 perm-in) — prevents condensation from penetrating insulated ducts and pipes.
Radiant Heat Reflectivity: Highly reflective surface (≥ 88% reflectivity) redirects radiant heat, improving thermal insulation efficiency.
Broad Temperature Range: Performs continuously from -30°C to +150°C (standard); up to +260°C (high-temp silicone adhesive grade).
EMI/RFI Shielding: Conductive aluminum backing attenuates electromagnetic and radio-frequency interference in electronic enclosures.
Flame Retardant: Self-extinguishing; meets UL 723 Class 1 / ASTM E84 for flame spread and smoke development.
Tear Resistant: Aluminum backing resists tearing during installation; reinforced with fiberglass scrim in select grades.
Weather & UV Resistant: Withstands outdoor exposure, sunlight, and ozone without degradation.

Applications：

HVAC & Ductwork: Sealing joints, seams, and connections on sheet-metal ducts, flex ducts, and duct board.
Thermal Insulation: Jacketing and sealing fiberglass, mineral wool, and foam insulation on pipes, ducts, and vessels.
Vapor Barrier: Repairing punctures and overlaps in vapor retarder membranes in walls, attics, and crawlspaces.
Refrigeration & Cold Storage: Sealing insulated panels, cold-room liners, and refrigeration lines.
Automotive: Heat shielding near exhaust systems, engine bay repairs, intake pipe sealing.
Electronics: EMI/RFI shielding gaskets, cable wrap, enclosure seam sealing.
Aerospace & Marine: Lightweight heat shielding, moisture sealing in confined compartments.

Technical Specifications

Parameter	Typical Range
Backing Material	Dead-soft aluminum foil (1100 alloy, 99%+ Al)
Adhesive Type	Solvent-based acrylic (standard); silicone (high-temp); rubber (economy)
Release Liner	Kraft paper (silicone-coated) on select grades
Color	Silver / Metallic
Total Thickness	60 – 195 µm (0.06 – 0.20 mm)
Foil Thickness	25 – 59 µm (1.0 – 2.3 mil)
Width	12 mm – 1220 mm (common: 48 / 50 / 75 / 100 mm)
Length per Roll	10 m – 182 m (common: 45 m / 50 m)
Core Size	1" (25 mm) or 3" (76 mm)
Tensile Strength (MD)	≥ 31 N/25mm (foil); ≥ 62 N/25mm (scrim-reinforced)
Elongation at Break	5% – 10% (foil)
180° Peel Adhesion (Steel)	≥ 6.5 N/25mm (acrylic); ≥ 7.5 N/25mm (rubber)
Temperature Range	-30°C to +150°C (acrylic); -30°C to +260°C (silicone)
Water Vapor Transmission	≤ 0.01 g/m²·24h (impermeable)
Reflectivity	≥ 89% (ASTM E408)
Flame Spread Index	≤ 25 (Class A / Class 1)
Smoke Developed Index	≤ 50