What's the best thing for filling in screw heads or nail holes in wood these days, before painting?
Most fillers like Pollyfilla don't give a particularly smooth finish and often show through the paint. And can cause the screw to rust. Decorators caulk shrinks. Car body filler is too much effort. So is there anything better now available? Something like decorators caulk that doesn't shrink would be purrfect.