How Does 3M VHB Tape Perform Under Strong Conditions?

3M VHB Tapes are a family of high-performance acrylic adhesive double-sided foam tapes. These tapes can form incredibly strong bonds and have greater longevity and elasticity than traditional double-sided foam tapes. The product selection vhb tape involves bands of various core constructions and several adhesives. All 3m vhb tapes use closed cell technology and deliver outstanding resistance and durability to the environment. 3m vhb tapes superior performance means they can also substitute mechanical fasteners to join various materials.

How 3M Vhb Tapes Work

The excellent output of these tapes stems from the acrylic core properties. The center has the dual properties of very viscous liquid and solid elastic. The property is called viscoelasticity. The Visco properties cause the adhesive to flow into the surface's microscopic irregularities, forming very strong bonds. The elastic properties allow these bands to absorb dynamic loads, tolerate differential surface expansion, and disperse loads over the most significant area. The elastic properties between -40 c and 90 c are preserved.

Reasons, why 3m vhb tapes are commonly, used

Durability

Acrylic is a very robust material with outstanding resistance to long-term aging. The 3m vhb tape in long-term and demanding applications in various industries, such as construction, and signage, are examples of popular vhb tapes implementations from 1980. Locally, vhb tape was used on the outside cladding panels of the 227 new markets, Auckland building in 1987. Durability depends on the particular application and working environments, and more comprehensive details can be found in the technical bulletin on 3m vhb tape durability.

Outdoor Weathering

Vhb tapes output is not significantly impacted by sunlight exposure and harsh conditions. Outdoor weathering decks hot and damp, high uv, and Arizona hot with high uv and other locations worldwide are used to collect data about these tapes long-term results. Usually, these rigorous tests indicate 100 percent preservation of bond strength after 2-5 years.

Fatigue and Vibration Resistance

On the Bendix automotive proving ground in Indiana, an example of vhb tape durability has been produced. A full-size semi-truck with a sleeper cab was built with all exterior panels and doors taped to an underlying 4950 vhb tape frame. The 3m vhb tape bonds remain completely intact after roughly 500,000 km on the harsh durability track. This is especially impressive, considering that some mechanically joined and welded parts the test program failed and needed repairs during the test program.

Solvent and moisture resistance testing did not reveal any noticeable deterioration of any vhb tape when most common solvents, including water, diesel, white spirits, motor oil, ammonia cleaner, acetone, methyl ethyl ketone and isopropyl alcohol, are subjected to splash test. 3m vhb tape serves as a shield against moisture and helps protect dissimilar metals from galvanic corrosion. Despite laboratory tests showing no deterioration after ten years of saltwater submersion, vhb tapes are not recommended for continuous submersion applications.

The surface function interacts with the adhesives differently, depending on their property and overflowing steam. Check all surfaces for the adhesive flow and the ability to touch another form of 3m vhb tape.