Permabond 731 Toughened Cyanoacrylate

Description

Permabond 731 cyanoacrylate is a toughened instant adhesive for shops that need a fast bond without the brittleness of a conventional cyanoacrylate. The toughening chemistry adds impact and peel resistance, so joints hold up better under vibration and handling shock right after assembly. Viscosity stays stable across the shelf life of the product, which keeps bead size and cure behavior consistent from the first drop in a bottle to the last.

Where Permabond 731 Cyanoacrylate Is Used

This grade bonds steel, aluminum, and galvanized steel along with common plastics and elastomers, which covers most of what a fabrication or assembly line runs across in a day. It shows up in aerospace and defense component work, general manufacturing, LED and electronics assembly, metal fabrication, sign and display production, and transportation and specialty vehicle builds. The longer open time compared to a standard instant adhesive gives an operator a moment to true up alignment before the bond sets, which matters on parts that need to sit flush or square.

How Permabond 731 Cyanoacrylate Holds Up

Because the formula is toughened rather than rigid, cured joints resist peel and shock loads that would crack a standard cyanoacrylate bond line. It cures with no mixing and no heat cure step, and the chemistry is 100 percent reactive with no solvents flashing off during cure. That matters for enclosed assemblies where solvent off-gassing could fog a lens or haze a clear part.

Permabond 731 ships in a 1 oz bottle sized for bench assembly and touch-up work. Pair it with an accelerator when a faster fixture time is needed on cooler substrates. Browse the full lineup of cyanoacrylate adhesives for related grades, and see Permabond for the complete instant adhesive line.

Need Help?

Need help matching this adhesive to your substrate combination? Call (800) 220-1966 or email [email protected].