What kind of sandpaper to use on concrete? For basic sanding, use sandpaper with the grit between 40-60. To remove minor irregularities, use 80-120 grit sandpaper. For perfect finish and smoothness, use superfine sandpaper with grit ranging between 200-400. If there are severe imperfections, then you need to use a floor grinder or special diamond disc.
Can you use a floor sander on concrete? If you are sanding an entire concrete floor, look for something larger. For wide floor spaces, use a floor sander – also known as a drum sander or a concrete grinder. These can be operated standing up. These typically can attach to a vacuum for mid-project cleaning.
Can you sand concrete with orbital sander? An orbital sander is the correct equipment to use when sanding concrete. You will want to have several different grit sizes of orbital sanding discs on hand. … To remove only a small rough patch or uneven area, you can use 1000-grit automobile black sandpaper, which is very fine and will not remove much of the concrete.
How do you sand a concrete floor for painting? Clean the area of dust with a broom and dustpan after finishing. After the first pass, go over the floor with a fine or superfine sandpaper disc to finish the surface. Examine the concrete floor to ensure you have removed any paints, stains or other coatings. Repeat sanding as necessary until the sanding is complete.
What kind of sandpaper to use on concrete? – Related Questions
Is flo coat concrete resurfacer worth it?
5.0 out of 5 stars Great product for DIYers. Very satisfied with this purchase. Although it took me a few bags to get the right mixture ratio, I really like how easy it was to spread the new concrete on my garage floor. 5.0 out of 5 stars Great product for DIYers.
How long should j bolt be in deck concrete?
Placement is approximately every 6 to 8 feet depending on code, with one not more than 12 inches from each end of a wall bottom plate. Make sure not to put a J-bolt in the middle of a doorway. Hammer an 8d nail on the outside of the concrete form to mark the J-bolt positions.
Can concrete be irradiated?
Irradiation effects on concrete is a subject that has drawn more and more attention, as the possible life time extension of nuclear power plants beyond original design life is discussed.
How to concrete driveway yourself?
Irradiation effects on concrete is a subject that has drawn more and more attention, as the possible life time extension of nuclear power plants beyond original design life is discussed.
How long does a concrete tile roof last uk?
Clay and concrete roof tiles have a long history and a good track record. Manufacturers typically guarantee the tiles for 30 years and suggest that 60 years is a reasonable service life.
Why does my concrete floor smell?
Concrete floors are typically found in unfinished areas of the home. Often basements are dark, damp areas that receive little sunlight or ventilation. This causes moisture to stand inside the room; the standing moisture gets absorbed into the concrete, which leads to the odor.
What kind of concrete to use for laying block?
Building a concrete block wall is one of the more involved building projects that requires careful planning and a little heavy lifting, but easy to accomplish with QUIKRETE Mason Mix.
How to cut driveway concrete?
Use a standard circular saw, equipped with a corundum or diamond blade, for small tasks. For slabs, it’s best to cut through the top inch, then use a sledgehammer to break off the rest. The jagged edge left below the cutting line provides a good rough edge for the new concrete to bond to.
How long for fence post concrete to set?
Typically, you can apply some weight to the posts after 4 hours, but it’s a good idea to wait at least 24 hours before resuming fence construction. Standard concrete mixes may take up to two hours to set and should cure for 24 to 48 hours before any forces are applied to the posts.
Can you pour concrete over plywood?
Many contractors will tell you that pouring concrete over wood can be a tough job to undertake. For example, plywood is notoriously difficult to pour over since the wood is very porous and won’t allow the concrete to settle evenly. … You can pour concrete over plywood floors.
Is cement stronger than concrete?
Is cement stronger than concrete? Cement is not stronger than concrete. On its own, in fact, cement is prone to cracking. When combined with aggregate materials and water and allowed to harden, however, cement—now concrete—is extraordinarily strong.
Is it cost effective to build home out of concrete?
Concrete houses cost 4 to 8 percent more nationally than traditional frame houses, depending on the floor plan and finishes. … “Just a few years ago, building a concrete house cost about 25 percent more than a stick frame,” says Stewart, owner of Perfect Concrete, whose average home costs $350,000.
Is polished concrete porous?
Its visible porosity is due to evaporation of water during the curing process. On polished concrete floors these pores are filled with a silicate densifier.
How often should you seal a concrete driveway?
Its visible porosity is due to evaporation of water during the curing process. On polished concrete floors these pores are filled with a silicate densifier.
What’s a good concrete cleaner for my garage floor?
Mix a half-cup baking soda in a gallon of warm water and use it as an all-purpose cleaner. You can also mix baking soda with a few drops of liquid soap, to make a paste, and use it to scrub light stains. Don’t underestimate the power of warm, soapy water to keep your floors clean and remove minor stains.
How thick is a concrete kitchen floor?
Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.
Can concrete be placed over concrete?
You can put new concrete over old concrete. However, unresolved issues with your old concrete, such as cracks or frost heaves, will carry over to your new concrete if not taken care of. In addition, you must pour it at least 2 inches thick.
When should concrete be sealed?
If your concrete is new, you’ll need to let it cure; wait at least one month before applying sealer. Before you apply it, check the weather. Sealer needs to be applied in dry conditions because it won’t adhere to damp concrete.
What do concrete blocks cost?
Building and construction concrete block prices are $1 to $4 per block, depending on the size. Standard 8”x8”x16” concrete block prices are $1.25 to $2.50 each. The biggest 12”x8”16” CMU blocks cost $2 to $4 per block.
How do you use self leveling concrete?
When self-leveling concrete is poured, it has a viscosity similar to that of pancake batter. A gauge rake is used to move it into place without spreading it too thin. The finishing is then done by lightly breaking the surface tension of the product using a tool called a smoother.
Should you seal exposed aggregate concrete?
Does exposed aggregate need to be sealed? Yes. These sealers—typically film-forming acrylic resins—can help protect against spalling, dusting, efflorescence, freeze-thaw damage, stains, deicing salts, and abrasion. A sealer will also enhance the color of the aggregate, accentuating its depth and richness.