Collection: Bostik

Born2Bond is the engineering adhesives range of Bostik, a company of the Arkema group. It was developed to overcome two well known limitations of conventional cyanoacrylates, odour and blooming, the white haze that settles around the joint as it cures and disqualifies the adhesive wherever appearance matters.

The 8 Born2Bond references in the catalogue

• Instant adhesives: Born2Bond Ultra, Ultra K85 and Light Lock. See our cyanoacrylate adhesives.
• Anaerobic adhesives: PA-77, PA-WL, GA-WL, RA-WL and TA-WL, covering threadlocking, thread sealing, retaining of cylindrical assemblies and flange gasketing. See our anaerobic adhesives.

Anaerobic, the principle in one sentence

An anaerobic adhesive stays liquid as long as it is in contact with air and polymerises as soon as air is excluded, between two closely fitted metal parts. That property explains its whole use: the product can be applied without haste, it flows into the thread or the fit clearance, and it only hardens where it is confined. Excess left outside the joint does not cure and wipes away.

Two practical consequences. So-called inactive metals, such as stainless steel, anodised aluminium or plated surfaces, slow polymerisation markedly and often call for an activator. And a greasy or contaminated thread gives an irregular result: degreasing governs the hold as much as the choice of product.

Light Lock, for visible joints

Born2Bond Light Lock cures by two mechanisms, at the surface like a conventional cyanoacrylate and under light like a UV adhesive. The point is squeeze-out: on an assembly where a line of adhesive remains visible, an ordinary cyanoacrylate leaves a soft, blanched bead, whereas a pass under the lamp sets the exposed part cleanly.