Runs in "high build epoxy"

[jmac]

Not sure where to post this.

I put on my first coat of High Build epoxy primer on a aluminum hull and have
a couple spots with orange peel. Should I sand it out now or wait until after the next 2 coats go on?

[waikikin]

jmac, get em out early, so thinners can escape from the thick ness, some times you can "shave" runs off with single edge razor held at roughly 90 degrees to suface & scrape, peel is often typical in high build primer depending on equipment used, I am by no means a full on spray painter but have done a goodly amount, beware of pissing the paint up with a fast thinners though in a cold climate, as on a metal substrate especially you can reach a dew point situation through solvent evaporation & epoxy dont like water till its cured, all the best with it & regards from Jeff.

[alaskatrawler]

I would go ahead a apply the next couple of coats and then sand. Don't worry about a couple of runs in the high build primer just do your build up then when done with your build then sand. Remember with epoxy primer you have a recoat window for high build. Awlgrip and Sterling reccommend 8 hours before having to sand between coats.

Dan

[jmac]

It was not much so we sanded lightly and applied another coat. Sterling says recoat time max 24 hours before sanding is needed. We are in a cold climate inside a heated building so our room temp was around 70df and the boat metal was between 63 and 70d f.
I dont see much literature on what the relative humidity should be when painting.