Professional-grade double-sided foam tape with acrylic adhesive, 12 in x 36 yd, 45 mil thickness. Permanent bonding solution for industrial applications with immediate handling strength and superior durability across extreme temperatures.
3M™ VHB™ Tape 4941 is a premium double-sided foam tape engineered with a multi-purpose acrylic adhesive and a conformable foam core backed by densified kraft paper liner. This industrial-grade bonding solution delivers a total thickness of 45 mil (1.1 mm) and provides immediate handling strength without requiring fixture or cure time. The tape is specifically designed as a permanent alternative to mechanical fasteners such as rivets, welds, and screws, or liquid adhesives, offering exceptional shear strength, conformability, and surface adhesion properties.
This versatile bonding tape excels at adhering to a broad range of substrates including aluminum, stainless steel, galvanized steel, composites, plastics, acrylic, polycarbonate, ABS, and painted or sealed wood and concrete. The 12-inch width and 36-yard length (32.92 meters) configuration makes it ideal for large-scale industrial applications. With its closed-cell acrylic chemistry, the tape provides outstanding durability, resisting extreme temperatures from -40°C to 149°C (-40°F to 300°F), moisture, UV exposure, and various solvents, making it suitable for both indoor and outdoor applications.
The 4941 family of VHB™ Tapes is commonly utilized across transportation, appliance manufacturing, electronics, construction, signage, and general industrial markets. It is UL GREENGUARD™ and UL GREENGUARD™ Gold Certified, contributing to LEED® credits for sustainable building practices. This tape enables designers and engineers to create thinner, lighter-weight assemblies using dissimilar materials while maintaining superior bonding performance and aesthetic appeal by eliminating visible fasteners.
Key Features
- Fast and easy-to-use permanent bonding method providing immediate handling strength without fixture or cure time
- 45 mil (1.1 mm) thickness designed as alternative to mechanical fasteners like rivets, welds, and screws
- Excellent shear strength, conformability, and surface adhesion with acrylic foam core and multi-purpose adhesive
- Outdoor durability with resistance to high and low temperatures, moisture, UV exposure, and solvents
- Multi-surface compatibility with high and medium surface energy materials including metals, plastics, glass, and composites
- Versatile applications across transportation, appliance, electronics, construction, signage, and general industrial markets
- UL GREENGUARD™ and UL GREENGUARD™ Gold Certified for LEED® credit contribution
- Enables use of thinner, lighter-weight, and dissimilar materials compared to traditional fasteners
- Closed-cell acrylic chemistry for extreme environment performance and long-lasting bonding
- Proven reliability with consistent bond, outstanding durability, and excellent solvent and moisture resistance
Technical Specifications
| Specification |
Value |
| Product Name | 3M™ VHB™ Tape 4941 |
| Part Number | 4941 |
| UPC Code | 00051115256158 |
| Overall Width (Imperial) | 12 inches |
| Overall Width (Metric) | 304.8 millimeters |
| Overall Length (Imperial) | 36 yards |
| Overall Length (Metric) | 32.92 meters |
| Total Thickness without Liner (Imperial) | 45 mil |
| Total Thickness without Liner (Metric) | 1.1 millimeters |
| Adhesive Type | Multi-purpose Acrylic |
| Foam Type | Conformable Acrylic Foam Core |
| Liner Material | Densified Kraft Paper, 3 mil thickness |
| Core Size (Imperial) | 3 inches |
| Core Size (Metric) | 76.2 millimeters |
| Product Color | Gray |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Maximum Operating Temperature (Celsius) | 149°C |
| Minimum Operating Temperature | -40°C to -40°F |
| Indoor/Outdoor Use | Both Indoor and Outdoor |
| Shelf Life | 24 months |
| Units per Case | 1 roll |
| Smallest Saleable Unit | Roll |
| Brand | 3M VHB™ |
| Certifications | UL GREENGUARD™ and UL GREENGUARD™ Gold Certified |
| Compatible Substrates | Aluminum, stainless steel, galvanized steel, acrylic, polycarbonate, ABS, composites, glass, painted/sealed wood and concrete |
| Surface Energy Compatibility | High Surface Energy (HSE) and Medium Surface Energy (MSE) materials |
| Industries | Transportation, Appliance, Electronics, Construction, Signage, General Industrial, Metalworking, MRO, Converter Solutions |
| Recommended Applications | Panel to frame bonding, stiffener attachment, decorative trim, nameplates, electronic displays, gasket assembly, nameplate attachment |
| Chemical Resistance | Excellent resistance to solvents and moisture |
| UV Stability | UV resistant and temperature stable |
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