3M™ 4950 VHB™ is a firm, acrylic adhesive tape with excellent long-term holding power. The peel adhesion and tensile holding power is significantly higher than typical pressure sensitive tape products.
Very high bond (VHB) joining systems utilise firm acrylic adhesives which have excellent long-term
holding power. The peel adhesion and tensile holding power of products in the VHB family are significantly higher than typical pressure sensitive tape products. Resistance to solvents, temperature extremes, and UV light make 3M™ VHB products suitable for many interior and exterior applications.
3M™ 4950 VHB™ joining systems can, in many situations, replace rivets, spot welds, liquid adhesives, and other permanent fasteners. Each product in the VHB family has specific strengths. These can include high tensile, shear and peel adhesion and resistance to solvents, moisture, and plasticiser migration.
VHB™ joining systems are suitable for bonding a variety of substrates, including sealed wood, many plastics, composites, and metals. Plastics which can be problematic include polyethylene, polypropylene, Teflon, silicones, and other low surface energy (LSE) materials. Plasticised vinyl bonding is dependent upon the types and concentrations of plasticisers which can migrate into the adhesives, causing a reduction in bond strength; 4945 is most resistant to plasticiser migration.
Galvanised surfaces are potential problems and should be carefully evaluated. To prevent corrosion on copper and brass, only lacquer-coated material should be used with VHB joining systems. Thorough evaluations are recommended when bonding is required to any questionable surface.
You can be assured that our 3M™ collections have exactly the product you’re looking for, and our service team is at hand to help you find the perfect solution.