3M™ VHB™ 4646 – High Temp Acrylic Foam Tape

3M™ VHB™ Tape 4646 is a dark gray, 0.6 mm (25 mil) double-sided acrylic foam tape designed for high-strength, long-lasting bonding in high-temperature environments. Part of the trusted 4611 family, it features a general-purpose adhesive on a firm foam core and is ideal for use on high surface energy substrates like aluminum and stainless steel. This tape delivers high-performance adhesion while eliminating the need for drilling, welding, or using screws. Its ability to form virtually invisible bonds makes it perfect for applications where aesthetics matter. Whether you’re bonding panels before paint or assembling signage, 3M™ VHB™ 4646 offers speed, durability, and design freedom.

Where to Use 3M™ VHB™ 4646?

Bonding stiffeners to metal panels
Frame-to-panel assembly
Decorative trim attachment
Mounting nameplates and logos
Pre-paint bonding for powder coating ovens
Industrial applications requiring high-temp durability

Need a heat-resistant bonding solution that’s fast, clean, and strong?

3M™ VHB™ 4646 is your go-to choice for demanding industrial applications.

Why Choose 3M™ VHB™ 4646?

High-temperature resistant – Withstands up to 450 °F (232 °C) short-term, 300 °F (149 °C) long-term
Strong and fast – Immediate handling strength without waiting for curing
Smooth appearance – Virtually invisible bonding without rivets or screws
Seals out water and moisture – Closed-cell foam structure resists environmental exposure
Design flexibility – Bonds thin, lightweight, and dissimilar materials
UV and solvent resistance – Long-lasting performance in tough conditions
Increased efficiency – Eliminates drilling, welding, grinding, and cleanup