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Concrete is durable and hard wearing but does still requires a certain amount of care to keep it looking it's best. Please read the following instructions carefully to ensure your concrete basin will look its best for years to come.


DLH Designs handmade concrete basins have been fully sealed on the inside surface to protect the concrete from stains and ingress of water. Even though we water test every basin before it leaves our workshop, occasionally there will be the odd small area that will darken when wet. This is not a sign of the sealer failing so please do not be alarmed.

The outside surfaces of the basins have been lightly sealed but will remain porous and will darken when wet.

Please do not leave your basin full of water for more than 15 minutes. Our basins are sealed not glazed, the sealer allows the concrete to breathe. If you leave water in the basin long enough it will eventually penetrate the sealer, potentially causing damage to the sealer.

Our sealers offer great stain protection but we still recommend you do not allow substances such as hair dye, highly-pigmented cosmetics and any acidic substances from coming in contact with concrete surfaces as they may damage/stain the sealer.

It is important to remember that concrete is not porcelain. Depending on level of use and care, concrete will dull and develop its own patina over time.


Clean with a soft, microfibre cloth. A gentle cleaner may be used. Never use anything abrasive on your concrete or scratch or scrub at the surface as this may harm the integrity of the sealer. Never expose you concrete to anything corrosive or acidic including orange or lemon based cleaning products.


Over time concrete can develop pinholes where air bubble have formed just under the surface during manufacture. This is an unavoidable character of concrete and should not be viewed as a flaw but rather a part of concrete's unique character.