by StoneRoad » 30 Mar 2018 16:38
Agree with doing fiddly bits first ... but feather the edge.
Sorry, but you do need to thin paint, several thin coats of gloss are better than one thick one, brush marks will be less obvious ... use as big a brush as you find comfortable and keep a wet edge at all times. Put on and brush out then immediately, finally lay off vertically with a light touch. If the paint drags, it is either too thick or started to skin over already, if not gone off too much a brushful of thinners should sort it (otherwise sand back when dry). Watch out for runs and curtains, these are worse with paint too thick or far too thin.
Don't paint "in the sun" or on a very hot day, you will not be able to keep the wet edge. Morning outside provided the dew has lifted, evening shift - flies / dust and dew ...
If you have enough people, then tag-team - one applying / brush out then laying off in turn over relatively small areas. Don't over-stretch. Did this tag-team method for a dark blue boat hull !
My experience is mainly based on wooden carriage painting, and I'm currently using craftmaster instead of Williamsons.