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Mud can stain. This is especially true if you do not clean it up right away.
Surfectants work in stain removers to remove the stain and not damage what the stain is on. It oxidizes the stain and lifts it out of whatever its in,
Usually, it does stain.
Protists are often stained using a silver stain, not a Gram stain.
A gram stain is a cow
If the stain is dry and the ceiling, if papered, is still sound, then try using a "stain-blocker" paint. Most paint manufacturers produce such paints.* Do not use a water-based paint, such as emulsion or acrylic, because the stain, even though dry, will still bleed through.It is important to remember that two coats may be necessary: the first painted across the stain in one direction and, after that has dried, another coat painted at right angles across the first coat.Do not use any finishing coat until all traces of the stain have been "blotted out" by the stain-blocker. Allow to dry thoroughly and then finish off with one or two coats of ceiling paint i.e. emulsion or acrylic. * Dulux and International Paints(usual disclaimers apply!) are effective.
If it is just a very small amount of emulsion on the surface of the carpet, mix a tbsp of white vingegar in water and rub into the stain: with patience this should rub out the stain. If the emulsion has sunk in and had gone solid: forget it......nothing will shift it , time to buy a new carpet!
My uncle is a painter and he said you will probably have to repaint ceiling but first user a Kilz primer to cover the oily stain then paint ceiling.
Stand on a ladder
YThere is a shiny spot where you painted over a water stain on a textured ceiling because of reflection. I used original kilz on this stain it still shows,I have been a professional painter for 30 years and have not seen this happen. Are there any other explanations out there?thanks
If it's coming from the roof then the bathroom ceiling will have a water stain on it too. If you don't see this then it is coming from your bathroom.
I spilled some stain/varnish on my carpeting...gently scraped it with a razor and then a comb and then stean cleaned it.....good as new....
Mud can stain. This is especially true if you do not clean it up right away.
umm, how to explain, it explodes, like a firework but not that high, it can stain a ceiling (I did this experiment in school, well my teacher did)
Wash the area with ammoniacal cleaner, let dry, apply three coats of oil based stain blocking primer.
Have you access to the floor above it? if you do, try to life some floorboards and see what you can find. If the ceiling is the bottom of the attic, find a way in and check out the pipes. If you can't access floor above, ask whoever lives there to have a look for you.
gentilly take a small amount of stool and rub it on, it takes the stain right out! Good luck!