Reflectix FT350 Reflective Foil Tape 3in X 150ft

Product Description

The REFLECTIX FT350 is a reflective foil tape engineered for sealing and joining reflective foil insulation and radiant barrier systems. It is constructed with a UV-stabilized metalized polypropylene film and a high-tack acrylic adhesive formulated to perform reliably across a wide temperature range, including sub-freezing conditions. At 3 inches wide and 150 feet per roll, it provides ample coverage for large insulation installations. The acrylic adhesive bonds firmly without sacrificing workability in cold environments, making it a practical choice for insulation contractors and building envelope technicians working in variable climates.

This tape is used in residential and commercial insulation applications where a continuous, airtight seal is required across radiant barrier and reflective foil insulation assemblies. Typical install scenarios include attic radiant barriers, crawl space insulation, wall cavity systems, and duct wrap applications. The tape is resistant to moisture, flame spread, and smoke generation, supporting use in both conditioned and unconditioned spaces. It performs across high and low temperature extremes, making it suitable for year-round installation in diverse climate zones.

Key Features

• UV-stabilized metalized polypropylene film surface for durability in exposed and semi-exposed installations
• High-tack acrylic adhesive maintains bond strength at sub-freezing temperatures
• Resistant to moisture, smoke generation, and flame spread
• 3-inch width provides broad coverage for seaming and edge-sealing radiant barrier panels
• 150-foot roll length reduces splicing and speeds up large-area installations
• Compatible with both metalized aluminum surface and white poly surface reflective insulation products

Compatibility

Designed for use with reflective foil insulation and radiant barrier systems, including products with a metalized aluminum surface or a white poly surface. For applications involving curing concrete and under-slab use, the white poly surface variant is the appropriate choice alongside bubble-foil-bubble or poly-bubble-foil insulation products.

Installation Notes

Installation is typically performed by insulation contractors or general building trades as part of the building envelope scope. Surfaces should be clean, dry, and free of dust or debris before tape application to ensure full adhesive contact. Apply consistent pressure along the tape length to activate the adhesive bond. Follow applicable building codes and manufacturer guidelines for vapor retarder and radiant barrier sealing requirements in your jurisdiction.

Technical Specifications

• Width: 3 inches
• Length: 150 feet
• Film Material: UV-stabilized metalized polypropylene
• Adhesive Type: High-tack acrylic
• Moisture Resistance: Yes
• Flame Spread Resistance: Yes
• Smoke Generation Resistance: Yes

Standard Information

• Brand: REFLECTIX
• Manufacturer Part Number: FT350