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Structural Adhesives Replacing Fasteners in Bonding Composites

Posted on 8/11/2020 9:39:13 AM By ASC
  

Structural adhesives have already taken over the roles previously performed by mechanical fasteners in many manufacturing sectors. It’s hardly surprising that with their bonding ability, reduced application time, low weight, and ability to bond both like and unlike substrates, has made them attractive to more and more sectors, including those that are manufacturing or applying composites.

In composite manufacture, materials vary and keep changing in the wake of technological developments, and so does the demand for them. This has resulted in a strong need for finding alternatives to metal fasteners which will fit these changing requirements - and structural adhesives seem to have become the answer.

A big attraction is that modern chemistry is also changing all the time, making it easier for assemblers to find the right adhesive product. It’s also meant that adhesive formulators are more able to introduce tweaks and changes to adhesives which can now customize them to fit the specific needs of individual sectors and their particular application requirements, without as having to make as many trade-offs in other qualities in the process as was once the case.

One of the biggest benefits of structural adhesives over fasteners in the manufacture of composites is that they don’t need drilled holes for application in the way that mechanical fasteners do, and so won’t provide the same risks with regard to material damage, heat marks and read-throughs, and will provide better fatigue performance. They also save time in composite assembly because they are lighter without the mechanical fasteners, and are therefore also easier to use in final application.



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