![]() If the lath behind the old plaster is sound, patching is a matter of troweling on layers of mud. How to Patch Plaster Walls if the Lath is in Good Condition The patch is now ready to prime and paint. On the third day, spread another coat, and after it dries, smooth it gently with a damp sponge. Gently scrape it smooth and apply a second coat. Using a 6-inch taping knife, scrape the patch area smooth, and cover the patch with a thin layer of ready-mix joint compound. How to Repair Lath and Plaster in 6 Steps 1. It’s a common practice to replace missing plaster with a piece of blue board (a wall board made to be coated with plaster), but troweling on base coat is faster. Finish coats came after the base had dried. Several coats were applied, the first keying into the spaces between the lath to make a stable base. Into the 20 th century, plaster was applied over wood lath spaced half an inch or so apart over the studs or ceiling joists. If the lath is in good condition and you need to repair holes, patching is a matter of troweling on layers of mud. Don’t use so-called patching plaster sold at home centers, it’s much harder than the wall’s original plaster, and it sets in the blink of an eye. It’s better to use a softer, slower-setting lime-based plaster, like the one developed for Big Wally’s line of plaster-repair products, takes about an hour to set, isn’t prone to cracking or delaminating, and needs no sanding, which keeps dust to a minimum. How Do You Repair a Hole in Lath and Plaster Walls?įor lath and plaster repair, it’s important to use good techniques and the right materials. First, you’ll repair the lath and then patch the hole. ![]() Kirk & Jason Giordano’s worldwide online free teaching stucco channel.If you’re dealing with damaged lath and plaster walls-for example gaping holes in the wall because of electrical work-here are techniques you can use to repair them. It’s not only good karma, but It also makes you feel warm and fuzzy all over.įeel free to check out our recommended tools on our Amazon website below. Oh yeah, don’t forget to save the world, like and subscribe. Next, kick back, relax, and enjoy the video! This gives the tile grout more strength to adhere to many substrates. Instead of mixing the grout with water, you would combine the grout with the sika bonding agent. Sika additive is usually for grout as in tile adhesives. I added Sika’s bonding agent to prove a point I didn’t explain in this video. Quickrete bonding agent is also great and sold at all Home depot and lowes hardware stores. ![]() Howdy ambitious subscribers, we’re sharing some learned knowledge about Bonding Agents for Concrete, Stucco & Plaster. Thus Google, “Plastering yards near me,” if interested in using Weld -Crete as your bonding agent. Larson’s, “Weld-Crete is sold at plastering yards. □īonding Agents for Concrete, Stucco & Plaster, Liquid Lath, Quikrete bonding agent is sold at HD and lowes big chain hardware stores. Because it is so strong, I often am forced to dilute it. Anyone else, do as the cans or bottles tell you, as I explain what I have done for more than thirty years with my intricate material knowledge.Īll should realize, Weld-Crete is made for concrete over concrete but can also be used for thin layers of stucco finish coats over painted surfaces. In this video, I explain why I dilute this bonding agent. I prefer full strength for adhering base or skim coats to painted stucco surfaces.įull strength Weld-Crete over a painted stucco surface is a different story. Stucco Bonding Agent Quikrete Bonding Agent Weld Crete Bonding Agent.
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