Specialty Tapes - VHB Technical Data Sheet
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3M™ VHB™ Tape 4646
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Details
Highlights
- Fast and easy-to-use permanent bonding method provides high temperature strength and long-term durability
- Virtually invisible fastening keeps surfaces smooth
- Dark Grey, 25 mil (0.6 mm), general purpose adhesive with firm foam has added feature of high temperature resistance
- Can replace mechanical fasteners (rivets, welds, screws) or liquid adhesives
- Pressure sensitive adhesive bonds on contact to provide immediate handling strength
- Eliminate drilling, grinding, refinishing, screwing, welding, and associated clean-up
- Allows the use of thinner, lighter weight and dissimilar materials
Dream, design, deliver with 3M™ VHB™ Tape 4646. It is a dark grey, 25 mil (0.6 mm), general purpose adhesive with firm foam that has the added feature of high temperature resistance. The fast and easy to use permanent bonding method provides high strength and long-term durability. It offers design flexibility with its viscoelasticity and powerful ability to bond to a variety of surfaces.
3M™ VHB™ Tape 4646 is in the 4611 family of 3M™ VHB™ Tapes. These tapes utilize general purpose adhesive on both sides of firm foam. High temperature capability makes this family often suitable for bonding prior to high temperature paint processing. It is typically used on metal substrates such as aluminum, galvanized steel, and stainless steel. Applications for this tape include stiffener and panel attachment, including assembly before paint ovens, as well as decorative material and trim.
Suggested applications
- Stiffener to panel
- Panel to frame
- Decorative material and trim
- Nameplates and logos
Typical Properties
| Adhesive Type | Acrylic |
| Applications | Vibration resistant, Small Joint Assembly, Alternatives to Rivetting or Welding, Impact Resistance, Mounting & Trim Attachment, Panel to Frame/Stiffner to Panel Assembly, Semi-Structural Bonding |
| Backing (Carrier) Material | Acrylic Foam |
| Backing (Carrier) Thickness (Imperial) | 5 Milli-inch (mil) |
| Brands | VHB™ |
| Core Size (Imperial) | 3 in |
| Foam Type | Firm, Very Conformable |
| Indoor/Outdoor | Indoor/Outdoor |
| Industries | General Industrial, Metalworking |
| Liner Material | Polyethylene Film |
| Maximum Operating Temperature (Celsius) | 149 °C |
| Maximum Operating Temperature (Fahrenheit) | 300 null |
| Product Colour | Dark Grey, Grey |
| Smallest Saleable Unit | Roll |
| Units per Case | 1.0, 2.0, 9.0 |
| Overall Length (Imperial) | 36 yd, 72 yd |
| Overall Length (Metric) | 32.92 m, 65.84 m |
| Overall Width (Imperial) | 0.5 in, 1 in, 48 in |
| Overall Width (Metric) | 13 mm, 25.4 mm, 1219 mm |
Resources
Data Sheets
(PDF, 730KB)
Data Sheets
(PDF, 452KB)
Similar products
| Overall Width (Metric) | 13 mm, 25.4 mm, 1,219 mm | ||
| Overall Width (Imperial) | 0.5 in, 1 in, 48 in | ||
| Backing (Carrier) Material | Acrylic Foam | ||
| Product Colour | Dark Grey, Grey | ||
| Overall Length (Metric) | 32.92 m, 65.84 m | ||
| Overall Length (Imperial) | 36 yd, 72 yd |
3M™ VHB™ Tape 4646