@Squarehead speaks good advice..
On the odd occasion I have had similar happen to me, I have let that 1st coat, nearly set, then (controversial), give it a rub with a sponge then 2nd coat as normal.......obviously, as I am brill this doesn't happen often...lol
On the odd occasion I have had similar happen to me, I have let that 1st coat, nearly set, then (controversial), give it a rub with a sponge then 2nd coat as normal.......obviously, as I am brill this doesn't happen often...lol