What You Need

  • A variable speed concrete polisher, water fed with a speed setting, hand-held.
  • A squeegee.
  • Diamond grinding pads. Coarser pads are essential in exposing aggregates and removing blemishes.
  • Earplugs, googles, and a mask if you do dry-sanding.

The preparation

First, begin by cleaning your countertop with water, then after that run the squeegee on top of it closely to get rid of any particulates sitting on the surface or grit. Doing this will cause you to gouge as you sand it.

Fill in the holes

After you prepare the countertop, be sure to clean all holes and flaws using a patching slurry before you polish it. Patching slurries comes in different colors to contrast or match against the countertop.

Rub the Surface

Immediately all the holes on the countertop are sealed, polish it using the coarsest pad that you have. Ensure you cover the whole surface for a smoother and even finish. Maintain the polisher level then make sure that it’s receiving a constant water flow.

Polish the Countertop Surface Using a Finer Pad

Move a step further, then polish the surface once again. Be sure to repeat this process with all pads that you have.

While changing pads, it’s essential to wipe the surface to get rid of debris and dust. Doing this gives you a clearer view of the working area and lowers the chances of imperfections.

Also, there isn’t a fast and hard rule for how long you need to use each pad or how much you need to polish the surface. Here, use your judgment

If there are places, the grinder can’t access, use your hand to sand the concrete.

Give It Time to Dry

Immediately the surface is fully dry and has attained the right finish that you want, allow it dry before you use any sealant to seal and protect your hard work.

Apply the Countertop Surface Using a Sealant

Finally, apply a concrete sealant on top of the sanded concrete. Doing this will help in protecting the surface from wear and tear or stains.

How to Sand Concrete Walls

Most concrete walls are a blank canvas. They habitually possess an industrial and cold feel. But if this design style isn’t what you desire your walls to feel like, then the solution is polishing them to get a high shine.

Immediately the walls are polished and sanded; be sure to coat them with a clear sealer, paint, or stain them to integrate your décor. Here is the step by step guide to do the task:

  • Begin by washing the walls using water and dishwashing soap. Get rid of the soap residue through rinsing the walls using clean water and a sponge. Let it dry overnight.
  • After that, attach a diamond pad on a hand-held grinder. Using a diamond pad is the only way to bear positive results as its strong enough to cut across the top layer of the concrete.
  • Then press hard the grinder on the wall then apply gentle pressure. Shift the grinder back and forth and up and down all over the wall. After some time, the concrete will start developing a slight luster. For paint, ensure you’ll be required only to remove a little part of the upper concrete layer.
  • Keep on sanding until you arrive at the desired shine you need.
  • Finally, wipe the wall using a damp towel to clean away the sanding dust. Then prepare your wall and make it ready for stain, paint, or sealer.

How to Sand Concrete Porch

In most places, Concrete porches provide people with a solid foundation for entertainment. Furthermore, sanding the concrete porch removes breaks and spills from the surface and gets rid of imperfections that leave your porch with bad texture and appearance.

Here’s what you’ll need:

  • Power washer
  • Push broom
  • 300 and 800-grit diamond disc
  • Long paint roller (hand-held)
  • Penetrating concrete sealer
  • Shop vacuum
  • Start by removing all things from the concrete porch. Wrap all nearby flowers and plants using drop cloths to safeguard them from too much concrete dust.
  • Then brush the porch to get rid of small and particulates.
  • Fix a rough diamond disc on the orbital floor sander machine. Then power device as you move the orbital on the porch.
  • After that, vacuum the dust built by the machine using a shop vacuum.
  • With that done, Switch it off then replace the first diamond disc using a finer, 300-grit polishing disc. Again, power on the machine to the surface smooth.
  • Using the shop vacuum, clean all the concrete dust.
  • After that, sand the concrete porch using the finer metal disc to make the surface free form bumps, stains, and imperfections.
  • Again use a shop vacuum to wipe all the concrete dust.
  • Use a power washer to rinse the surface to get rid of all concrete dust then allow the porch to dry.
  • Then use a long-handheld roller to roll a uniform coating of concrete sealer on the dried surface. After that, allow the layer to dry, depending on the labeled timeline. After the first coat dries up, apply a second coat then let it dry.

Can you sand concrete with regular sandpaper?

Can You Sand Concrete with Regular Sandpaper? Yes. You can if you prefer to sand concrete by hand instead of using a power tool. Unfortunately, because concrete is so tough, regular sandpaper gets worn down very quickly against it.

What is the best tool for sanding concrete?

The verdict: Which One Is the Best Stone and Concrete Sander in 2019
Makita PW5001C The best allrounder. Our verdict: 4.5 of 5 Check deals and prices for Makita PW5001C on Amazon
ZFE 800W/110V Grinder Best budget choice. Our verdict: 4 of 5 Check deals and prices for ZFE 800W/110V Grinder on Amazon

Can rough concrete be sanded?

The good news is that concrete can be sanded with relative ease when the proper equipment is used, such as a good concrete sandpaper (made using diamond instead of sand). There are also three different types of sanded finish you can achieve, depending upon the tools and amount of removed material.

Can you use floor sander on concrete?

Sanding with Power Tools

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.

How do you sand a concrete floor by hand?

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.

What kind of sander do you use for concrete floors?

If you only have a small area to sand, you can also use a palm sander, orbital sander or belt sander. Rough imperfections may require the use of a special diamond disc and a concrete floor grinder.

How do you smooth a rough concrete floor?

How do you sand a concrete floor with an angle grinder?

How do you smooth out a concrete floor?

These are the 4 steps in how to smooth concrete after it dries:
  1. Remove all imperfections on the surface.
  2. Vacuum up all debris and apply the adherent.
  3. Apply a new layer of concrete.
  4. Sand the surface and wash the concrete.
  5. Apply a layer of vitrifier to protect the concrete.

How can I cover my concrete floor cheap?

Cheap Basement Flooring Ideas
  1. Epoxy and Concrete Paint. Paint is generally your cheapest basement floor option.
  2. Concrete Stain and Sealer. Concrete stain is another inexpensive option.
  3. Linoleum or Vinyl.
  4. Ceramic Tile Flooring.
  5. Rubber and Foam Mats.
  6. Traditional Carpet Flooring.
  7. Laminate or Engineered Hardwood.

What tool do you use to smooth concrete?

Screeds. Screeds are long, straight, stiff tubing or boards used to smooth and roughly level wet concrete shortly after it is poured. Screeds are available in different sizes and can even be project-specific, such as those used for building concrete bridges.

How do you smooth out old concrete?

Can you concrete over old concrete?

You can put new concrete over old concrete. However, unresolved issues with your old concrete, such as breaks 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.

How do you fix rough concrete?

Fill the damaged areas with epoxy resin to the surface level of the surrounding concrete floor. Use a putty knife to fill the break or hole in the concrete, and then level the top of the resin with the floor using the knife. Allow the patch to dry overnight.

How do you fill in rough concrete?

We recommend filling in the low spots first and then applying a final top coat over the entire surface. Finally, you can apply epoxy over the concrete. This will fill in any rough areas making it smooth to the touch. You can add pigment or keep it clear.

What is the best concrete resurfacer?

Our Top Picks
Title
KILZ Over Armor Textured Wood/Concrete Coating, 1 gallon, Slate Gray KILZ
Patch and Resurfacer, 5 lb, Pack, Gray DAP
SAKRETE | Flo-Coat Concrete Resurfacer | 40 lb Sakrete
Quikrete Fast-Setting Self Leveling Floor Surfacer 50 Lb Quikrete
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2 fév. 2021

What do you use to fill small holes in concrete floor?