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Mud over concrete does’t work. After a while it will show splotches of discoloration, then it will peel off. I’d suggest doing as the locals do and use materials they use. The right plaster can be smoother than drywall.
Can I skim coat over concrete?
If your driveway has excessive chips that detract from the overall beauty of your front yard, skim coating it will significantly improve the appearance. Pouring a thin, new layer of concrete over the old surface will smooth out any chips or pits and give you the opportunity to add color.
Can you use joint compound to fill holes in concrete?
Common spackling products do not adhere to the concrete and are not suitable for repairing holes or cracks in your concrete walls.
What is the difference between drywall mud and joint compound?
Drywall mud, also called joint compound, is a gypsum-based paste used to finish drywall joints and corners in new drywall installations. It’s also handy for repairing cracks and holes in existing drywall and plaster surfaces.
Should I prime before applying joint compound?
Generally, you don’t need to apply primer before joint compound on painted surfaces. Joint compound adheres well to many textures, so primer isn’t necessary for adhesion. Apply the compound as smoothly as possible using wide drywall knives, which decreases the number of wiping lines and marks you make.
Can I pour a 2 inch concrete slab?
If done properly, new concrete can often be poured right over an existing slab. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregate, and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.
Can I use drywall mud instead of spackle?
The main ingredient in joint compound — or mud — is gypsum, and it’s the product that you use for taping and finishing drywall seams. You can also use it to patch holes, although it takes longer to dry and shrinks more than spackling paste. You can use mud to fill any hole that you would fill with spackling paste.
Can you put a thin layer of concrete over existing concrete?
Yes, you may pour a concrete pad overlay over an existing slab. You need to consider the added height and weight of the overlay on the existing structure. Overlays may include polymers, portland cement concrete, or epoxies.
What is the best concrete overlay?
Broom Finish Concrete Overlay SureBroom is our strongest overlay, has the largest aggregate, and is suited for the highest wear surface including vehicular and foot traffic. Trowel or spray applications.
Can you pour self leveling concrete over existing concrete?
You can level an existing concrete floor with a leveling layer of new concrete, but you must prepare the old concrete floor first. Neglecting to prepare the old surface will prevent the new concrete from adhering correctly, resulting in a weak bond between the two layers.
Will concrete overlay crack?
Unfortunately, most concrete has a tendency to crack, usually as a result of improper design or poor construction practices. As an overlay installer, you have no control over these factors. You are responsible for repairing any cracks in the existing concrete before resurfacing.
Can you mud drywall seams without tape?
Drywall tape does not offer an mechanical strength at all. If you skipped the drywall tape and just used joint compound to fill in the seams, the seams would become visible again after the compound dried. Joint compound shrinks!
How thick should concrete overlay be?
The minimum recommended thickness is 1 to 2 in. (25 to 50 mm) for a fully bonded concrete overlay placed on a base slab that is practically free of cracks and in which the concrete is sound, clean, and of good quality.
How do you fill screw holes in cement board?
Tiny nail and screw holes are easiest: Use a putty knife to fill them with spackling or wall joint compound. Allow the area to dry, then sand lightly. Anything larger must be covered with a bridging material for strength before patching compound can be applied.
Do concrete overlays last?
Concrete overlays are only as good as the surface, it is being applied to. You need to keep in mind that if the concrete is cracked or surfacing up, then the overlay will also break and come up. You need to be sure that if the concrete is heavily damaged, your overlay won’t last long.
What will drywall mud stick to?
You can apply drywall mud to any rough-grain wood surface. Plywood or oriented strand board (OSB) are good choices, but the mud will also stick to painted wood, as long as the paint is flat and not glossy. Drywall mud is not intended for outdoor use, so don’t skim-coat a garden shed.
What do you use to fill holes in concrete?
If you want to fill the hole, you need the epoxy liquid that will reach the bottom. Putty doesn’t flow, and doing all this drilling in concrete is asking for something to crack too.
What to use to fill small holes in concrete walls?
An ideal patch to use for both purposes is hydraulic cement, which expands to fill cracks and holes as it dries.
- Remove loose material from the hole in the wall by probing it with the tip of a screwdriver or blade of a putty knife.
- Dampen the hole and surrounding area with water using a spray bottle.
Will drywall mud stick to a painted wall?
You use drywall joint compound for almost all drywall repairs. Unfortunately, it doesn’t stick well to gloss or semi-gloss paint. Not only does it cut grease and dirt, it etches the finish and improves paint adhesion. Chip off any loose drywall mud on seams from which the paper is separating with a paint scraper.
Will drywall mud stick to a 2×4?
You can apply drywall mud to any rough-grain wood surface. Plywood or oriented strand board (OSB) are good choices, but the mud will also stick to painted wood, as long as the paint is flat and not glossy.
How many coats of drywall mud do I need?
Apply a heavy coat of spackle over the tape, filling the depression between the drywall. Long joints will commonly require three coats. The first coat is the heaviest and uses the most spackle. The second coat, applied after the first has dried completely, levels the joint.
