Premium dark gray VHB foam tape with high temperature resistance, permanent bonding strength, and industrial-grade durability for metal substrate assembly and fastening applications.
3M™ VHB™ Tape 4646 is a premium dark gray, 0.025 inch (0.6 mm) thick general purpose adhesive foam tape featuring firm foam construction with exceptional high temperature resistance capabilities. This advanced bonding solution combines powerful acrylic adhesive on both sides of the foam, delivering fast and easy-to-use permanent bonding that provides high strength and long-term durability. The tape is specifically engineered to replace mechanical fasteners such as rivets, welds, and screws, making it ideal for industrial applications requiring reliable assembly before high temperature paint processing.
Designed for metal substrates including aluminum, galvanized steel, and stainless steel, the 3M VHB Tape 4646 offers virtually invisible fastening that keeps surfaces smooth and aesthetically pleasing. The pressure-sensitive adhesive bonds on contact to provide immediate handling strength, allowing for design flexibility with its viscoelastic properties. This innovative tape creates a permanent seal against water, moisture, and environmental contaminants while maintaining structural integrity across temperature extremes from Dubai's heat to Canada's cold.
With a maximum operating temperature of 300°F (149°C), this industrial-grade tape is perfect for assembly operations involving paint ovens and high-temperature processing. The 24 roll case includes rolls measuring 3/8 inch width by 36 yards length, packaged on 3-inch cores with polyethylene film liners. 3M VHB Tape 4646 represents decades of innovation since the invention of VHB technology in 1980, offering proven reliability, outstanding durability, and excellent solvent and moisture resistance for demanding industrial applications.
Key Features
- Fast and easy-to-use permanent bonding method with high strength and long-term durability
- Virtually invisible fastening keeps surfaces smooth and maintains aesthetic appearance
- Replaces mechanical fasteners including rivets, welds, screws and liquid adhesives
- High temperature resistance up to 300°F (149°C) suitable for paint processing
- Creates permanent seal against water, moisture and environmental contaminants
- Pressure-sensitive adhesive provides immediate handling strength on contact
- Suitable for metal substrates including aluminum, galvanized steel and stainless steel
- Eliminates drilling, grinding, refinishing and associated cleanup labor
- Allows use of thinner, lighter weight and dissimilar materials in design
- UV and temperature stable with excellent solvent and moisture resistance
Technical Specifications
| Specification |
Value |
| Product Name | 3M VHB Tape 4646 |
| Part Number | 4646 |
| 3M Product Number | 4646 |
| 3M ID | 7010519790 |
| Product Color | Dark Gray |
| Overall Width (Imperial) | 0.375 in |
| Overall Width (Metric) | 9.525 mm |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 32.91 m |
| Total Tape Thickness without Liner (Imperial) | 23.622 mil |
| Total Tape Thickness without Liner (Metric) | 0.6 mm |
| Tape Thickness with Liner | 25 mil |
| Adhesive Type | Acrylic |
| Foam Type | Firm |
| Liner Material | Polyethylene Film |
| Core Size (Imperial) | 3 in |
| Maximum Operating Temperature (Fahrenheit) | 300 ℉ |
| Maximum Operating Temperature (Celsius) | 149 ℃ |
| Indoor/Outdoor | Indoor/Outdoor |
| Brand | VHB™ |
| Industries | General Industrial, Metalworking |
| Smallest Saleable Unit | Roll |
| Case Quantity | 24 Roll/Case |
| Recommended Applications | Stiffener to panel, Panel to frame, Decorative material and trim, Nameplates and logos |
| Use Classification | Industrial/Occupational Use Only |
Order 3M VHB Tape 4646 Dark Gray High Temperature Adhesive at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
