My drywall was wet before due to a leak. It has a stain mark. But after 5 coats of white paint from Behr brand and Kilz primer, the yellow stain is still bleeding thru
In the past, I remember I had to scrape off the paper and put new mud/sand again. Then prime, paint.
Now it is all done already with texture and paint. Is there a better way to fix this?
I am thinking about getting the white color from Sherwin Williams but I am not sure if it does any difference.
Best Answer
Fortunately there are not many things that are soluble in both oil and water.
If it's a water stain use an oil based undercoat, or a shellac based sealer.
If it's an oil, grease, or wax, stain use a water based undercoat.
Use two coats of undercoat to get a good seal.