01 October 2012
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Instant adhesives are more than just a quick fix

Loctite instant adhesives from Henkel, which are commonly called superglues, are formulated to cure very quickly when confined between surfaces.

Surface humidity on the substrates triggers the cure reaction which moves from the substrate surfaces towards the middle of the adhesive joint.

Cyanoacrylates are chosen for bonding small parts to achieve extremely fast fixing and come in a variety of types optimised for specific application requirements. Selection is governed by the parts to be bonded, the loads to be resisted, the joint geometry and the process parameters. Their adhesion to most substrates is excellent and the bonding strength in shear and tensile mode is very good.

Broadly all instant adhesives, whatever their brand, are chosen for their ability to provide a quick fix. But the Loctite range offers much more application flexibility than that. In general cyanoacrylates have limited gap filling capacity and require close fitting surfaces. There is one product however which is an important exception to this rule.

Loctite 3090 is a two part product which will fill gaps up to 5mm. It cures through the volume and won't run out of the joint in the absence of perfect face-to-face contact or if there are any surface imperfections. This is an ideal workshop or general maintenance adhesive and can even be used to encapsulate a delicate component or part; once it has hardened it can be machined and polished. The product is also a good choice where low bloom is required.

Visitors to the FAST and IASE Event on October 18th at the National Motorcycle Museum will be able to find out more when they visit the Henkel Loctite stand.

Author
Paul Gay

Related Companies

Henkel Loctite Adhesives Ltd

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