Makes ?Fast Cure? Even Faster
3M empowers its customers by designing the solutions that bring optimal performance to their everyday applications. We designed 3M™ Polyurethane Adhesive Sealant Accelerator AC63 for large applications where adhesive strength and cure time are factors. When this adhesive accelerator is combined with an adhesive in a two-part adhesive system, it is capable of reaching full strength in a fraction of the time it takes conventional, single-part polyurethane adhesives. Consistent, guaranteed cure rates can be achieved in less than an hour, while a tack-free state can be achieved within 15 (+/-5) minutes.
A Different Kind of Cure
With a curing process unlike that of the single-part polyurethane adhesives on the market, our two-part accelerated polyurethane mixture of 3M™ Polyurethane Adhesive Sealant Accelerator AC63 and 3M™ Polyurethane Adhesive Sealant 550 is capable of curing due to a chemical process as well as a moisture-based process. This process actually cures the adhesive from the inside out, resulting in a more consistent cure that reaches full strength in a fraction of the time. No exothermic reaction takes place, no priming is required (for most applications), and the adhesive mixture does not stain.

Dynabrade 92911 - 1" (25 mm) Dia. x 1-1/2" (38 mm) W Slotted Wheel
Dynabrade 02504 Rotor
Dynabrade 79166 1/2" W x 30" L 40 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 46000 .4 hp Right Angle Die Grinder, Rear Exhaust, 12,000 RPM, 1/4" Collet
Dynabrade 90424 1/4" W x 24" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 92209 1/8" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack 
