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.
Smooth rough concrete with concrete resurfacer.
- Scrub the concrete with an eco-friendly concrete cleaner and a scrub brush.
- Equip a drill with a paddle mixer bit.
- Re-wet the concrete if it has dried.
- Mist the patio with water, using a garden hose with a sprayer attachment.
Also, can I sand concrete with sandpaper? 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.
Also to know is, can rough concrete be sanded?
Most hardware stores sell concrete grinding or sanding disks that can be attached to angle grinders. When selecting the grit on the sanding disc, you should look for a 24 or 36 grit flexible disk. This will make the concrete smooth, but it will keep it rough enough so that the sealant will stick to the concrete.
How do you make a concrete floor smooth and shiny?
Regular sweeping and weekly cleaning with a mop and mild solution of dish soap and water should help concrete keep its shine. Every few months, use a pressure washer to clean dirt and debris from crevices. Make sure the concrete can handle the high-pressured stream of water before you tackle the entire project.
Can you grind down concrete?
Move the wheel/disc over the surface of the concrete quickly and smoothly. Make multiple passes over a high spot to grind it down. Do not simply hold the grinder in one spot, as this will grind channels into the concrete based upon the edge of your disc or wheel.
Can you polish rough concrete?
A rough concrete floor may look intimidating and unsightly, but with a little effort, it can be polished and smoothed to a lustrous sheen. With a concrete polisher and the correct grade of smoothing and polishing attachments, you can get your rough and raw concrete floor looking smooth and shiny.
How do you grind concrete with an angle grinder?
Hold the grinding pad at a 45-degree angle to the concrete and pull the trigger. Hold the grinder away from you, make contact with the concrete and then pull the grinder towards you in a smooth, slow and consistent manner. Do not force the grinder into the concrete.
Can you use an orbital sander on concrete?
Choose coarse-grit sandpaper, in the 40- to 60-grit range, for basic sanding and stripping. 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.
Can you sand down concrete floor?
You need to sand the concrete floor, by hand or with a sander, so the new layer of paint/coating can adhere to the concrete correctly and not just cover debris or old paint. Use sandpaper and a sanding block to abrade your basement’s concrete floor.
How do you sand a concrete floor by hand?
How to Scuff Sand Concrete Mix a few drops of dish detergent into a bucket of warm water. Hang plastic sheeting over doorways to keep dust from the rest of the house. Attach 180-grit sandpaper, which is a fine grit, to a pole sander, hand sander or floor sander. Wash the dust from the floor with another bucket of water with dish detergent.
Can you polish concrete by hand?
Polished concrete is also a terrific way to update your home without a lot of expense. A small section of concrete can be polished with a hand sander. You can’t beat the look of polished concrete.
How do you grind and polish concrete?
Grind with an 80-grit metal-bonded diamond. Grind with a 150-grit metal-bonded diamond (or finer, if desired). Apply a chemical hardener to densify the concrete. Polish with a 100- or 200-grit resin-bond diamond, or a combination of the two.
How do you fix pitted concrete?
Smooth it out best you can with a putty knife or margin trowel. Within 24 hours the repair will be hard enough to grind or sand flush. For larger areas of pitting and spalling, we recommend using a 100% epoxy concrete patch with a sand aggregate. The silica sand is mixed in with the epoxy to act as a filler.