3M™ Venture Tape™ Aluminum Foil Tape 1521 CW
3M™ Venture Tape™ Aluminum Foil Tape 1521CW is engineered for cold weather performance in a variety of insulation and sealing applications. This tape bonds quickly to insulation facings, metal, and other building materials, and is designed for long-term performance in both indoor and outdoor environments. The aluminum backing provides excellent moisture, UV, and vapor barrier properties, making it a dependable choice for insulation system sealing, patching, and general repairs. 3M™ 1521CW is UL 723 classified, ensuring it meets stringent flammability and smoke standards for construction use.
Applications include: Sealing HVAC ducts, insulation facing, vapor barriers, general-purpose patching, and cold weather repairs.
- Adhesive can bond in temperatures as low as -10°F (-23°C)
- Excellent moisture and vapor barrier performance
- Conforms easily to irregular surfaces
- Designed for reliable adhesion in cold climate conditions
| Property | Specification |
| Adhesive Material | Silicone |
| Backing (Carrier) Material | Polyimide |
| Maximum Operating Temperature (Celsius) | 260 °C |
| Maximum Operating Temperature (Fahrenheit) | 500 °F |
| Product Color | Amber, Dark Amber |
| Total Tape Thickness without Liner (Imperial) | 3.3 mil |
| Total Tape Thickness without Liner (Metric) | 0.08 mm |
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