Premium 2.0 mil aluminum foil tape with cold-weather acrylic adhesive for HVAC sealing, masking, and heat shielding applications. Hand-tearable, conformable design performs -40°F to 250°F. UL723 rated. 20 rolls per case.
3M™ Venture Tape™ Aluminum Foil Tape 3520CW is a premium conformable 3.7 mil tape specifically designed for masking and sealing applications in HVAC systems and general-purpose heat shielding operations. This durable tape features a 2.0 mil aluminum foil backing that easily conforms to irregular surfaces, curved ductwork, and fibrous sheet metal applications. The tape is coated with a specialized cold-weather acrylic adhesive system that performs exceptionally well across a wide temperature range from -40°F to 250°F (-40°C to 121°C), making it ideal for both demanding industrial environments and standard installation conditions.
The pressure-sensitive adhesive formulation ensures immediate adhesion upon contact with various materials including fibrous and sheet metal ducts, without requiring special application methods or additional tools. This hand-tearable tape maintains excellent vapor sealing properties and provides reliable performance in high heat and humidity conditions. The flexible aluminum foil backing allows for easy installation on site, while the easy-release kraft liner facilitates smooth application. Once bonded, the tape exhibits superior aging properties that resist lifting and curling over extended periods, ensuring long-lasting durability and performance integrity.
This product meets rigorous safety standards including UL723 flame/smoke rating (10/10 classification) and CAN/ULC S102 classification flame/smoke rating, making it suitable for demanding construction, aerospace, automotive, appliance, and maintenance applications. Each case contains 20 rolls of 63.5mm x 45.72m tape, providing comprehensive coverage for large-scale HVAC projects and industrial sealing operations. 3M's Venture Tape™ Aluminum Foil Tape 3520CW is backed by exclusive 3M technical expertise and application support, ensuring optimal performance and customer satisfaction.
Key Features
- 2.0 mil aluminum foil backing conformable to irregular surfaces and curved ductwork
- Cold-weather acrylic adhesive performs from -40°F to 250°F (-40°C to 121°C)
- Hand-tearable design with easy-release kraft liner for quick on-site installation
- UL723 (10/10) and CAN/ULC S102 flame/smoke ratings for safety compliance
- Excellent vapor sealing properties for HVAC and duct sealing applications
- Superior aging resistance prevents lifting and curling over extended periods
- Immediate adhesion to fibrous and sheet metal surfaces without special tools
- Flexible backing provides excellent conformability to corners and irregular surfaces
- Thermally conductive for heating and cooling efficiency optimization
- Ideal for construction, aerospace, automotive, appliance, and maintenance applications
Technical Specifications
| Specification |
Value |
| Product Number | 3520CW |
| 3M ID | 7100166385 |
| UPC | 00638060139929 |
| Brand | Venture Tape™ |
| Backing Material | Aluminum Foil |
| Backing Thickness (Imperial) | 2 mil |
| Backing Thickness (Metric) | 0.05 mm |
| Total Tape Thickness without Liner (Imperial) | 3.5 mil |
| Total Tape Thickness without Liner (Metric) | 0.09 mm |
| Overall Width (Imperial) | 2.5 in |
| Overall Width (Metric) | 63.5 mm |
| Overall Length (Imperial) | 50 yd |
| Overall Length (Metric) | 45.72 m |
| Rolls per Case | 20 rolls |
| Adhesive Type | Acrylic |
| Temperature Range (Fahrenheit) | -40°F to 250°F |
| Temperature Range (Celsius) | -40°C to 121°C |
| Tensile Strength (Imperial) | 23 lb/in |
| Tensile Strength (Metric) | 40.3 N/100mm |
| Elongation at Break | 8.5% |
| Flame/Smoke Rating | UL723 (10/10) |
| Additional Certification | CAN/ULC S102 |
| Liner Type | Easy Release Kraft |
| Color | Silver |
| Application | Exterior Seams & Joints, Interior Seams & Joints, Sealing HVAC & Duct Work |
| Industries | Construction, Electronics, General Industrial |
| Recommended Uses | Vapor seals for fibrous and sheet metal ducts, Heavier general purpose construction applications |
| Installation Method | Hand-tearable, pressure-sensitive, no special tools required |
| Use Classification | For industrial/occupational use only. Not for consumer sale or use. |
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