3M™ VHB™ Tape 4941 consists of a durable acrylic adhesive with viscoelastic properties. This provides an extraordinarily strong double sided foam tape that adheres to a broad range of substrates, including aluminum, stainless steel, galvanized steel, composites, plastics, acrylic, polycarbonate, ABS and painted or sealed wood and concrete. Bonding tapes provide excellent shear strength, conformability, surface adhesion and temperature resistance. They are commonly used in applications across a variety of markets including transportation, appliance, electronics, construction, sign and display and general industrial. Reliably bonds a variety of materials with strength and speed for permanent applications.
FEATURES
- Fast and easy-to-use permanent bonding method provides high strength and long-term durability
- Virtually invisible fastening keeps surfaces smooth
- Can replace mechanical fasteners (rivets, welds, screws) or liquid adhesives
- Multi-purpose adhesive and conformable acrylic foam core offers a good balance of strength and conformability
- Eliminate drilling, grinding, refinishing, screwing, welding and associated clean-up
- Creates a permanent seal against water, moisture and more
- Pressure sensitive adhesive bonds on contact to provide immediate handling strength
- Allows the us of thinner, lighter weight and dissimilar materials
- UL GREENGUARD and UL GREENGUARD Gold Certified, contributing to LEED Credit
APPLICATIONS
- Decorative material and trim
- Nameplates and logos
- Electronic displays
- Panel to frame
- Stiffener to panel
| Property | 3M™ VHB™ Tape 4941 | Unit | Test Standard |
| Color | Grey | – | Visual |
| Dielectric Constant | 2.29 | at 1 kHz | ASTM D150 |
| 1.99 | at 1MHz | ASTM D150 | |
| Dissipation Factor | 0.0245 | at 1 kHz | ASTM D150 |
| 0.0374 | at 1MHz | ASTM D150 | |
| Dielectric Breakdown Strength | 14 (360) | V/µm (V/mil) | ASTM D140 |
| Thermal Conductivity (k value) | 0.08 (0.5) | W/mK (BTU•in/hr•ft2•°F) | – |
| Volume Resisitivity | 2.1 x 1014 | Ω-cm | ASTM D257 |
| Surface Resisitivity | 2.7 x 1014 | Ω/sq | ASTM D257 |
| Water Vapor Transmission Rate | 25.6 | g/m2 •day |
ASTM F1249 at 38°C/100% RH |
| Thermal Coefficient of Expansion | 180 (100) | 10-6 m/m/°C (10-6 in/in/°F) | – |
| Shear Modulus (at 25°C, 1 Hz) | 3 x 105 | Pa | – |
| Shelf Life | 2 | Years | – |