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Concrete worktops – The ultimate in design & fabrication

Fluid Stone Studio specialises in the production of handcrafted worktops, sinks, basins, shower trays, fireplaces, panels, tiles, countertops and outdoor furniture.

A Guide to Cleaning a Concrete Countertop or Concrete Sink

Right, so you have your concrete sink, fantastic! But now how on earth do you keep it clean?

What kind of concrete countertop or sink is it?

It depends – it could be porous or non-porous. Non porous ones have been treated and coated with a sealer. The important thing to keep in mind with this kind of countertop is that even though the concrete is basically indestructible, the sealer material is not and can be damaged by certain cleaners, sharp and heavy objects, and heat. Its best to use gentle, non-abrasive cleaners for this kind of sealer and protect your concrete countertops.

Porous concrete countertops on the other hand haven’t been treated. These are easily stained because of the porous nature of the exposed, raw concrete. They might require abrasive cleaning methods if you have a stain. Make sure that you ask us on site when we install yours for our top expert advice.

As a rule, we almost always seal countertops, whereas kitchen sinks are less frequently sealed. It is always advised that they are sealed to avoid problems.

Regardless of the kind of countertop you own, you should be wiping it down daily and giving them a deep clean once a week. Remember that concrete countertops are a big investment and you want to keep it looking new for a long time.

Soap and warm water

Mild dishwashing liquid can go a long way when removing stains, it applies for countertop stains, simple soap and water are safe to use on both kinds of countertops.When getting your sink installed you would have specified how you wanted it to be sealed (if at all).

The rule of thumb is to not use acids, that includes the likes of vinegar and citrus.

Acids etch the surface as they would on marble. Concrete is highly alkaline, and therefore highly likely to react with acids.

With this in mind you might only need warm soapy water. We recommend using natural soaps.

There are sealers that are heavy duty that may have been used, and this will mean that your sink will be pretty bullet proof, but you should really follow the rules. Some water based acrylic sealers would be damaged or stripped away by harsh chemicals or solvents that may have been used on the concrete as a means to clean it.

Avoid any abrasive cleaners that work to strip away the sealer and then the concrete itself. So keep your abrasives to yourself!