With the introduction of its Loctite 4090 cyanoacrylate/epoxy hybrid adhesive, Henkel is aiming to provide industry with the best of both worlds: the fixture speed of an instant and the durability of an epoxy adhesive. This combination is said to create new application areas for instant adhesives in structural bonding.
Loctite 4090 is based on Henkel's new, innovative and patent-protected hybrid technology. It also builds on the capability of its forerunner, Loctite 3090, which is claimed to be the only 'instant' adhesive able to fill gaps up to 5mm.
Henkel 4090 addition has this ability too, but the characteristic that sets it apart is its suitability for load-bearing parts, not just plastic parts. And in this sense it behaves more like an epoxy than a cyanoacrylate adhesive.
Epoxy adhesives are the traditional choice for demanding structural bonding applications; they provide exceptional static and dynamic strength. As with all adhesives, they allow stress to be distributed across the entire bond face and weigh less than traditional joining methods.
Rapid-cure epoxy adhesive
Loctite 4090 adds a new dimension to the Loctite armoury for structural bonding through its fixture time. While a typical epoxy has a minimal fixture time of 10 minutes, Loctite 4090 requires just 5 minutes. This makes it suitable for applications where handling strength needs to be achieved in minimum time.
In Loctite 4090, industry has all the speed and material versatility of a classic cyanoacrylate plus high-temperature performance and moisture/chemical resistance. It can be used with temperatures up to 150degC and is suitable for bonding highly stressed joints and those that are exposed to vibration.
This new two-part hybrid is supplied in a 50ml cartridge - complete with five mixing nozzles - which slots into a standard Loctite handgun for application.
Follow the link for more information about Henkel's Loctite 4090 cyanoacrylate/epoxy hybrid adhesive.