The advantage to using this material is that it is often sandable. These crystals interlock within the coarse open plaster to create a strong bond. The water starts a chemical reaction that causes invisible crystals to begin growing. Setting-type compounds are powders that mix with water. You can achieve moderate success with setting-type joint compounds and these might be a good product to use to practice your repair techniques. Plaster patching must be done with patching plaster and sometimes plaster of Paris for the best results. These products are only meant to be used with paper-faced drywall. Many old plaster patching jobs fail because people use the wrong materials for the job.ĭo not use the common drywall joint compounds you often find in home centers. To obtain professional results you will need to practice and use the correct products. I think you can successfully patch the plaster if you have some patience and a fair amount of hand-eye coordination. Obtain all approved cleaning procedures and cleaning products from the EPA's website. Mop the floors and wash down walls making sure to change the wash water regularly and dispose of the contaminated water down a toilet. Change and wash the filter regularly and dispose of the wash water down a toilet. If you try to vacuum up chips or dust, you must use a special HEPA filter-equipped vacuum cleaner. If this is so, there may be significant amounts of small lead paint chips in the rooms and significant amounts of visible or invisible lead dust in the rooms.īefore you do any plaster patching, I urge you to rid the rooms of any residual lead. Because of the age of the building, I would be willing to wager significant money that the paint you removed contained lead. How hard is it to work with plaster? Amy C., Brooklyn, NYĭEAR AMY: My biggest concern at this point is that you may have created a serious health issue in removing the paint from the walls. Do you think we can repair these defects on our own using skim coat plaster or other tools? All of the paint came off the walls easily to expose the original white-plaster walls. In some areas I can see down to a rough, sandy brown-colored plaster. The walls have small to medium-sized areas where some of the plaster is missing and there are numerous jagged cracks in the walls. PHOTO CREDIT: Amy Caroli Patching Plaster WallsĭEAR TIM: My husband and I are trying to restore our apartment in an old prewar building. I hope our nature pals treasured them as much as we had fun making those casts.Because of the depth of this hole, it will require two or more applications of patching plaster. The dirt was wet, so we waited for it to dry completely and I brushed off the rest of the dirt, stones, and pebbles off of the cast.They were good looking deer hoof impressions. I had to poke the stick into the soil and lift the cast up from underneath. Once you determine the plaster has dried and hardened, using your stick or spatula, pull the cast out of the soil or dirt. I prepared the mix a little bit thicker on purpose, for it to dry quicker. After pouring the mix, you need to wait about 15-20 minutes. Our plaster mix was dense and the surface was rough enough that we didn’t need any borders. Depending on the consistency, you might want to put a border around the track using a cardboard to stop the plaster mix to spread out. Once you identify the animal track you want to make the cast of and the mix is ready, slowly pour the mix on the track. It hardens up pretty fast, especially in cold weather. Otherwise, the mix will dry up until you find a good animal print. Prepare your plaster after your find your tracks.
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