Quick Answer: Can I Use A Sander On Concrete?

What is the smoothest concrete mix?

The ratio is typically 1 part cement to 3 parts sand and water of course.

The trick to getting a smooth final surface starts after its poured and before it sets.

You will need to create or purchase a float that will be used to produce the smooth finish..

When should I brush my concrete?

When it comes to brooming, timing is critical—brush too early and the surface will be weak, brush too late and there won’t be enough texture. It must be done while the slab is still soft, but after the bleed water has dissipated. Depending on the weather, this can take anywhere from 20 minutes to 4 hours.

What can I use to sand down concrete?

Choose coarse-grit sandpaper, in the 40- to 60-grit range, for basic sanding and stripping. For smooth finishes and removing minor imperfections, use 80- to 120-grit sandpaper. For the smoothest finish use superfine sandpaper, 200- to 400-grit or higher.

Can you sand concrete with regular sandpaper?

You can basically sand any type of concrete surfaces, regardless of whether it is a countertop, a floor, a wall, or a decorative object. However, be aware that you will need the right tools for the job: you can sand small and comparatively smooth surfaces by hand with regular or diamond sandpaper.

Can you smooth out concrete after it dries?

There are basically two methods used to smooth off hardened concrete surfaces. They are dry grinding and wet rubbing. Dry grinding is done of dry concrete surfaces to remove fins and marks caused by forms. … The water, plus the rubbing action, brings up a cement paste which results in a very smooth, plaster-like surface.

What is it called when you smooth concrete?

A concrete finisher is a skilled tradesperson who works with concrete by placing, finishing, protecting and repairing concrete in engineering and construction projects. … After levelling the concrete, they smooth the surface using either a hand trowel, a long handed bull float or by using powered floats.

Can you sand concrete to remove stains?

You certainly can sand concrete before applying a stain, but this may not be absolutely necessary. Sanding before staining ensures that the stain penetrates the surface, but this is only necessary if your concrete floor’s surface is otherwise incapable of absorbing liquids.

What is the best finish for concrete floors?

Top Concrete Finishing OptionsAcid Stain. An acid stain for concrete floor has a very bold look, recognizable by its mottled appearance and highly variegated finish. … Water-Based Stain. … Fast Stain. … Acrylic Sealer. … Standard Epoxy. … Metallic Epoxy. … Terrazzo or Granite Epoxy. … Quartz Sand Epoxy.

How do you hand sand concrete?

If you’ve dry-sanded your concrete and still have a cement-cream finish, then the easiest thing to do is to wet sand by hand using 320 to 400 grit silicon-carbide wet/dry sandpaper. Silicon carbide is much harder than concrete, so it abrades the surface easily, but won’t remove your cream finish.

How do you sand a concrete floor for painting?

Using the coarsest grade of concrete sandpaper, grind or sand the entire surface. Make sure to keep your pressure even. When using a grinder, keep it level to avoid an uneven finish. Note that concrete polishers require a constant supply of water to get good results.

How do you make concrete smooth and shiny?

To achieve a smooth and shiny concrete finish first requires proper leveling, floating, and troweling before it cures. After attaining a relatively smooth concrete surface, and once the concrete is dry, you can utilize either mechanical or chemical polishing methods to achieve a nice, glossy shine.

How do you smooth concrete?

Sand the Surface and Wash the Concrete Finish by fine-tuning with light sandpaper, until the surface is perfectly smooth. We recommend using a hand planer to smooth and compact the surface. If the concrete dries a lot then we recommend that you add water to the surface, this will help you give it a good finish.