![]() ![]() To see a video on all of this check out Taping Joints in the Learning Curve tab: Drywall. With either technique you must put a primer/sealer over the bare compound before painting or the paint will come out lighter over the new plaster than on the rest of the wall. Drywall mud is a compound used to fill in gaps and seams in wall and ceiling surfaces. Basically drywall was put in without regards to the trim around the windows and staircase. No, drywall mud does not have an expiration date. Just add more compound, perhaps even two coats until you do have a perfectly smooth wall. I bought an old home that has a bad drywall job over plaster. This is due to corrosion on copper wiring caused by the drywall. Some homeowners began to notice that their home air-conditioning systems were failing early and often. The first giveaway is the smell of sulfur, often likened to rotten eggs. You could sand through the paint and then level the joint compound, or you could plaster over the paint. There are some telltale signs that your home's walls may be tainted from toxic Chinese drywall. Run your hand over all the joint compound to feel any uneven spots and look carefully at the wall with good lighting and your eye looking down the wall at an angle to spot those imperfections.Īfter the paint is on you have two choices. Things that barely show up in the white plaster can look like a disaster under a painted surface. ![]() The only possibly issue is if you poured down a chunk that blocked things then put more stuff down the drain - in effect blocking your blocked mud. Add a lot of water or hot water to mud (in any state) will start to dissolve the material, quite quickly if water overpowers. ![]() It is certainly easier to perfect the sanding before there is paint on the wall, so the moral is to really verify your sanding job before saying it is good enough. Adding any water to drywall mud will slowly dissolve it. One viewer installed drywall, taped the joints, painted and then discovered that there were lumps and uneven areas in the joint plaster. ![]()
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