Special Requirements for Bonding with Cyanoacrylates

Cyanoacrylates cure quickly and care should be taken during the selection process to ensure that sufficient time is made available to position parts prior to the adhesive curing. 

The fast cure of cyanoacrylates can in many applications offer benefits to the production engineer, as process times will be fast and clamp times are usually short. The thinner the bond line the faster the cure. Note however that the joint must not be disturbed during the cure cycle as the cyanoacrylate will not properly re-configure itself if the molecular chains are broken at the start of the polymerisation. 

Cyanoacrylates are best suited to the smaller bond areas in rubber bonding applications, as larger areas often require more time to position the parts, and the fast cure of cyanoacrylates make this difficult. Typical applications are illustrated in Section 10.11. 

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