> If I remember right, that really isn't warm enough to make 5200. I think
> it calls for 70 degrees minimum for curing. As for the water, I've never
> heard of that one. Looking at the MSD sheets for it, I see nothing in the
> ingredients or handling sections that indicates water on it wet does
> anything positive for it when wet. It looks like if it does anything, it
> will be detremental to the strength and integrity of the bond. The best
> people to call are 3M, and their number for product information and advice
> on 5200 is 612-733-1110.

As a follow up, 24 hours after spritzing with water, it finally became tack free. I checked the tube and it says " A one part polyurethane that chemically reacts with moisture to deliver strong, flexible bond..."

The example given for the 7 day cure time is 77 degrees at 50% relative humidity.

Woody