Waterproof Sealer for Interior Walls

Hi Guys, Hoping you can help. First time home buyer who has decided to do a lot of the work myself in doing the place up and ive got a waterproofing question I could use some assistance on. Basically... ive had my bathroom completely replastered (over plaster board) so I have nice new surfaces to work with. I am going to seal over the new plaster with a mix of white emulsion and water (80% to 20%). I had picked my main paint to go as the top coat (light grey emulsion). I thought what I bought was waterproof... turns out that it isnt. So what I am looking for is a cost effective way of waterproofing that paint, instead of having to shell out for more paint. Just something that I can paint over the top of my final coat (once dry) to seal the walls. Ive looked around quite a bit and most seem to be for external walls... or sealing masonry and im not really expert to know if that would do the job? Ideally this needs to be clear, matt based finished and water based. But at this point im open to any ideas. Any advice or assistance would be very much appreciated. Thanks Jason

10 Answers

Style Decor
4 Reviews, 100% Positive
Hi Jason.

Waterproofing paint additives help to prevent mildew and mold by keeping the paint film dry, and most additives are compatible with all types of latex paint. These mixtures help to prevent damage caused by moisture, including damage due to rot, freezing and warping. They can also prevent colors from prematurely fading and help surfaces remain clean and free of dirt and grime.

SEI Paint Proofer is a quality waterproofing paint additive which guarantees to provide 100 percent water repellency. However, there are several different brands of additives available at your local paint store, including Rustoleum.
13th Aug 2019
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Hi Jason, you should use bathroom paint really, it's got special formulas made for steamy areas.
10th Aug 2019
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Noooooo please don't do that that on fresh plaster Jason you should have used a primer that's called laytax. And 2 coats of soft sheen on top that's your walls perfect water will just run off it hope that helps

Henry
Richmond decor and maintenance
15th Aug 2019
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The decorator
2 Reviews, 100% Positive
Pva glue mixed down
26th Aug 2019
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AdjAbuilder Ltd
1 Reviews, 100% Positive
Bear wall.mix a pva sealer. bonding agent, and primer,
Apply to bear wall.
Other method.
A wall paper glue will seal bear walls. Then apply paint.
Bear wall with Distress of mortar perished.
Bush of surface. apply pva
Next time Google information first.
23rd Aug 2019
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Essential homes
0 Reviews
you can buy damp-prof paint In white and paint over it in bathroom paint Any paint with a oil base will work the same but it will probably come back .
5th Sep 2019
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Beenrecommended
34 Reviews, 97% Positive
i would get in touch with dulux direct and they will know best the power of the interweb is a great thing lol
31st Aug 2019
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AAA BUILDERS
3 Reviews, 100% Positive
paint in the bathroom doesnt last long it will come off with the steam after few months I would suggest filling but if you don't have enough budget bathroom paint will do the job
15th Sep 2019
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Use either a mid sheen, silk or acrylic eggshell, all these are designed for moisture full areas
6th Oct 2019
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i would suggest you get easy care or vinyl matt for bathrooms this paint would be moisture resistant and also affordable, but if you are realy tight on budget you would have to go for silk or mid sheen it would be an economical way for water proofing your bathroom but at the same time matt is more recommended for a new plaster
14th Nov 2019
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