Chemical Surface Protectors

For natural stone, terracotta or exterior concrete, use water-repellent impregnators, which let water run off without forming a film on the surface. Stain-resistant treatments add protection against oil and dirt. Before applying, clean the surface and check that it is dry. Choose a water repellent if water is the main concern, or a stain-resistant treatment if stains matter most.

Grout sealer closes the pores of the grout, so stains, dirt and moisture penetrate less. Apply it to clean, completely dry grout, after the curing time stated on the technical data sheet. In areas exposed to dirt or liquids, such as kitchens and bathrooms, repeat the treatment at the frequency the manufacturer specifies.

Waxes for parquet and laminate protect the floor and give a matt, satin or glossy effect depending on the product. Apply them in thin coats, let them dry and buff. On laminate and varnished wood, a liquid wax is preferable. On oiled or oil-treated wood, check that the wax is compatible, to avoid marks.

Marble polishes shine and protect the stone after cleaning, but on marble and porous stones they should not be used as cleaners. Wood polish revives the finish and softens surface marks. Apply the product to a clean surface with a cloth and buff it. Before using a polish on an antique piece of furniture or a fine stone top, test in a hidden spot.

Woodworm treatments act against the larvae of insects that tunnel through wood. They are applied by spray or brush to clean, dry wood, including hidden areas, and repeated as stated on the label. If the infestation is widespread, a surface treatment is not enough and a more thorough intervention is needed, with a structural check of the piece.

For small scratches on vinyl or linoleum floors there are repair kits, such as ScratchFix by Dr. Schutz, with products in the right colour. Clean the area, apply the product in thin coats and let it dry before walking on it. Deep scratches require replacing the plank or tile, as the kit repairs only the surface layer.

Water repellents and protectants contain active ingredients that can irritate the eyes and respiratory tract, and spray products must be used with care. Work in a ventilated area, wear gloves and eye protection, and do not spray near people or plants. Prevent the product from reaching drains or soil. Read the label: some exterior protectants specify drying times before contact with water.