Reply by Fred Hargis

Everyone will have a different take on this, here’s mine:
I would sand to 180 and apply the seal coat. One coat should do it, and though it dries fairly quicky I would give it at least a couple of hours before top coating. The only reason I wold sand the seal coat is to smooth out any nibs, so a very fine grit should do….220 or even 320. No tips on the HP, you can thin it as much as 20% but I find it to spray very easily. I would worry about it drying a little too fast in your conditions…not allowing it to flow out. There are some retarders available if that’s a problem.

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