Feature

A structural 'instant' adhesive from Henkel

Henkel's Loctite 4090 cyanoacrylate/epoxy hybrid adhesive has the fixture speed of an instant and the durability of an epoxy. This novel combination opens up completely new application areas for instant adhesives in structural bonding.

02/03/2014 15:10:49

Loctite 4090 builds on the capability of its forerunner, Loctite 3090, an ‘instant’ that is able to fill gaps up to 5mm. The new 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.

However, while a typical epoxy has a minimal fixture time of 10 minutes, Loctite 4090 requires just 5 minutes, so it is suitable for applications where handling strength needs to be achieved quickly.

The adhesive is suitable for bonding highly stressed joints and those that are exposed to vibration.

The two-part hybrid is supplied in a 50ml cartridge - complete with 5 mixing nozzles - which slots into a standard Loctite handgun for application.

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.