High 70F, Low 60F: Can I use slow hardener?

The temp here this week & next should be highs of around 70, lows around 55-60. The boat will be outside in a tent. Can I use slow hardener?  (I already have slow hardener and I'm reluctant to spend more money on fast hardener if I can avoid it).

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RE: High 70F, Low 60F: Can I use slow hardener?

 

I've been wondering the same thing as my outdoor project keeps on going, well beyond the scheduled 4th of July launch.

Fortunately, the MAS FAQ's give some guidance--

http://www.masepoxies.com/public/index.cfm?fuseaction=articles.view&id=2240&publicationtype=Epoxy-School

check out #5, "MAS Epoxies Cure Schedules".  You'll see that the 60s is still doable, although the curing time elongates.

RE: High 70F, Low 60F: Can I use slow hardener?

Apply the epoxy while the temps are in the 70's and you'll be fine. As mc says, the lower temperatures will slow the cure time, but if you put a heat lamp in the tent overnight that'll keep the temperatures high enough so that you should be able to work the next day.

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