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Painting Water Stains

If you have leaking pipes or roof, you'll know what a water-stain looks like. When your walls get wet, it can create a brownish-yellow discoloration called a water-stain.

Before anything else, you'll want to remove the water leak that caused the stain. If you don't do this, any repair will just be damaged again during the next leak.

After removing the leak, you can repair the water-stain by priming the surface with a special alcohol or oil-based stain blocking primer. These primers will prevent the stain from bleeding through to the paint top coat. Without this primer, the stain will continue to bleed through to the surface.

The alcohol-based primers are the best at blocking stains (Zinsser BIN). The downside is that they smell really bad, but it dries really fast and does an awesome job at blocking the stain. The next best product to use is an oil-based stain-blocking primerĀ  (Zinsser Coverstain). These stain blocking primers also block other things like smoke-stains, marker and lipstick from bleeding through, too. We do not recommend using a water-based primer to block stains.

You may find it necessary to replace the sheetrock if it has been severely damaged. If the sheetrock is in good condition and just has a stain, then painting should suffice. But if the sheetrock itself is crumbly or weakened, then cutting out and replacing the damaged section may be the best course of action.

After the stain has been primed with a stain-blocking primer, then you are ready to repaint.

Make sure to use a disposable roller cover or paint brush to apply the stain-blocking primer. It is cleaner and easier and better for the environment to throw away a cheap brush then to use solvents to clean them.

*MyPerfectColor uses Kelly Moore or proprietary paints to create or match any color imaginable. MyPerfectColor has matched the colors on this page based on the color specifications of the original. Select a color to see MyPerfectColor's duplication of the colors you desire. Please note that since the paint used to match this color is unique to MyPerfectColor, the finish of the paint may vary from the original. Please note that, other than Kelly Moore, RAL, and Pantone, MyPerfectColor is not offering the actual branded color or paint product for sale and has no affiliation with the color-referenced brands. MyPerfectColor reference to any trademark is for color comparison only. On-screen and printed color representations may vary from actual paint colors. The actual paint color will also vary depending on the specific paint product, application method, gloss level, film variance, surface substrate, age and light source. Please note on small batch size orders, the potential variation of colors is increased.