4941F VHB Conformable Double-Sided Foam Tape

4941F VHB Conformable Double-Sided Foam Tape

45 Mil • Very High Bond Strength • Multi-Purpose • Suitable for Some Low Surface Energy Surfaces
By: 3M

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VHB™ Tape 4941F is a film backed version of the 4941 paper backed VHB tape. It is a thicker, multi-purpose, conformable, double-sided, pressure-sensitive, closed-cell acrylic foam tape with a polyethylene film liner.
Its conformable foam provides high strength with the capability of conforming to the irregularities of rigid substrates, even when there might be slight mismatch.

With a multi-purpose acrylic adhesive, this tape bonds to a wide range of materials including metals, glass, and high ("adhesive friendly") as well as medium surface energy plastics and paints.
It resists migration of plasticizers in vinyl substrates.

VHB Tapes combine the strength of a mechanical fastener with the convenience and simplicity of a tape.
They form instant, permanent bonds with no drying time, no mess, and are a convenient and proven alternative to nails, screws, or rivets.
As always, especially for critical applications, test this product for suitability under actual application conditions prior to using.

• A conformable foam tape suitable for bonding to flexible and/or somewhat irregular surfaces
• 45 mil thick without liner
• High strength, durable adhesion to high surface energy materials
• Medium adhesion to low surface energy plastics
• High solvent resistance
• Temperature range: 200°F (300°F for short periods)
• 5 mil, red polyethylene film liner
• UL listing 746C
• Note that VHB Tapes typically have low resistance to UV degradation. When used outdoors, and particularly in glazing applications - as they commonly are - they must be protected by a frit or other UV barrier

For a VHB tape with higher adhesion to low surface energy substrates, 3M offers VHB 4932 (25 mil) and VHB 4952 (45 mil) which are firm foam tapes suitable for flat rigid surfaces.

Heavy on the technical side...
3M&trade VHB Tapes are high-strength, structural bonding tapes.
They are a proven and convenient alternative to screws, rivets, welds, and other mechanical fasteners.

Unlike screws or rivets - which join materials at a single point - high-strength bonding tape permanently adheres one substrate to another while spreading the stress load across the entire length of the joint.
Comprised of closed cell foam impregnated with extremely high-strength pressure sensitive adhesive on both sides, the tape's flexibility allows it to compensate for differential thermal expansion between dissimilar materials — so they can be bonded with confidence.

Very High Bonding tapes feature instant bonding, and once materials are joined with VHB&trade Tape a virtually indestructible "weld" is created.
Skyscrapers, cell phones, highway signs, refrigerators, marine electronics, architectural windows, recreational vehicles… all of these rely on specialty VHB bonding tapes for one or more steps in their assembly, mounting, fastening, or sealing.

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