Stuck on adhesives choice?

摘要

Achieving the very best results from engineering adhesives means applying the correct technology; make the wrong choice and your joint is likely to fail, writes Colin Chapman. So, with that in mind, it is useful to understand a little about the types of adhesive that are available and their applications.rnCyanoacrylates - so called 'super glues', cyanoacrylates (CAs) are high-strength, single part products available in a range of viscosities that are generally used for bonding a variety of small part substrates. Their rapid cure, activated where microscopic surface moisture exists, means they are perfect for high-volume, automated production applications.rnMore recent developments include toughened, high peel strength, flexible and UV cure versions, which bond instantly when exposed to an appropriate light source, reaching 60% of their final strength within just five seconds. Now more user-friendly visible light lamps can be employed with the appropriate grade of adhesive.