Industrial-grade double-sided foam bonding tape with acrylic adhesive, 1/2 in x 36 yd, 45 mil thickness, 18 rolls per case. Permanent bonding alternative to rivets, welds, and screws with excellent temperature and moisture resistance.
3M™ VHB™ Tape 4941 is a premium double-sided foam bonding tape engineered for industrial applications requiring permanent, high-strength adhesive solutions. This advanced tape features a multi-purpose acrylic adhesive combined with a conformable foam core, delivering exceptional bonding performance across a wide range of substrates. The tape measures 1/2 inch (12.7 mm) wide by 36 yards (32.92 m) long with a total thickness of 45 mil (1.1 mm), backed by a 3 mil thick densified kraft paper liner. Each case contains 18 rolls, making it ideal for high-volume industrial operations.
Designed as a superior alternative to mechanical fasteners such as rivets, welds, and screws, this tape provides immediate handling strength without the need for curing or fixture time. The VHB 4941 delivers excellent shear strength, conformability, and surface adhesion thanks to its advanced acrylic foam chemistry. It successfully bonds high surface energy (HSE) and medium surface energy (MSE) materials including aluminum, stainless steel, galvanized steel, composites, plastics, acrylic, polycarbonate, and ABS. The closed-cell acrylic chemistry ensures proven durability in extreme environments.
With UL GREENGUARD™ and UL GREENGUARD™ Gold certification, this tape contributes to LEED® credits for sustainable construction projects. It offers exceptional outdoor durability and performance, resisting both high temperatures up to 149°C (300°F) and low temperatures, as well as moisture ingress. The 24-month shelf life ensures product reliability and consistency. Commonly used across transportation, appliance, electronics, construction, sign and display, and general industrial markets, the 3M VHB Tape 4941 represents a proven, reliable solution for permanent bonding and sealing applications.
Key Features
- Fast and easy-to-use permanent bonding method providing immediate handling strength without fixture or cure time
- Smooth and seamless alternative to mechanical fasteners with 45 mil (1.1 mm) thickness for superior performance
- Built to perform with excellent shear strength, conformability, and surface adhesion from acrylic foam core
- Durable outdoor performance with resistance to high and low temperatures and moisture ingress
- Multi-surface compatibility with HSE and MSE substrates including aluminum, steel, composites, and plastics
- Versatile applications across transportation, appliance, electronics, construction, and industrial markets
- UL GREENGUARD™ and Gold certified for LEED® credit contribution
- Allows use of thinner, lighter-weight, and dissimilar materials compared to traditional fasteners
- Excellent bonding and sealing with proven closed-cell acrylic chemistry for extreme environments
- 24-month shelf life with consistent, reliable bonding performance
Technical Specifications
| Specification |
Value |
| Product Name | 3M VHB Tape 4941 |
| Part Number | 4941 |
| 3M Product Number | 4941 |
| 3M ID | 7000123502 |
| UPC Code | 00021200648861 |
| Overall Width (Imperial) | 0.5 in |
| Overall Width (Metric) | 12.7 mm |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 32.92 m |
| Total Tape Thickness without Liner (Imperial) | 45 mil |
| Total Tape Thickness without Liner (Metric) | 1.1 mm |
| Liner Material | Densified Kraft Paper |
| Liner Thickness | 3 mil |
| Product Color | Gray |
| Adhesive Type | Acrylic |
| Foam Type | Conformable |
| Core Size (Imperial) | 3 in |
| Core Size (Metric) | 76.2 mm |
| Brand | VHB™ |
| Maximum Operating Temperature (Celsius) | 149 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 300 ℉ |
| Shelf Life | 24 Months |
| Units per Case | 18 Rolls |
| Smallest Saleable Unit | Roll |
| Indoor/Outdoor | Indoor/Outdoor |
| Certifications | UL GREENGUARD™ and UL GREENGUARD™ Gold Certified |
| Compatible Substrates | Aluminum, Stainless Steel, Galvanized Steel, Composites, Plastics, Acrylic, Polycarbonate, ABS, Painted or Sealed Wood and Concrete |
| Surface Energy Requirements | High Surface Energy (HSE) and Medium Surface Energy (MSE) |
| Industries | Appliance, Consumer Goods, Converter Solutions, General Industrial, MRO, Metalworking, Signage, Transportation |
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