Quote Originally Posted by wazkelly View Post
Reverted to wet sanding instead and problem solved no matter how fresh the last coat was, however best to leave things for a minimum 24 hours or 48 hours in the midst of winter over here.

The trick seems to be light and delicate sanding every couple of coats, even if just to give it some tooth for the next coat to grab onto.
absolutely spot on mate.
why is this such a secret and why do so many recommend 0000 steel wool??