We have had large Douglas Fir gate posts erected
My husband filled in checks with over paintable sealant.
However he has used a stain preventing paint that is not water based.
He used a paint that is supposed to stop wood stains coming through. ( he had already covered knotty areas with a shellac )
The paint(white) has gone a bit yellow where the sealant or traces of it are under it.
Can anyone advise whether he should pick it all out and redo it or can he sand it down in these parts and then put a water based paint on top of it ?