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Good quality tile adhesives and sealants are crucial for providing waterproof tiled finishes. Also pay particular attention to the grout you purchase, as some are more waterproof than others. Tile grout is available in a range of colours. White is the most popular, but you may choose off-white to match natural stone, for example. Natural tiles may also require sealing. Often it is best to apply one coat of sealant to the tiles before application, and and one after. As sealants are often tile-specific, you should take advice from your supplier.

Tile Adhesive
Powdered and ready-mixed tile adhesive varieties are available, but the latter are more expensive.

Adhesive and Grout
This useful dual-purpose substance acts as both an adhesive and a grout. Close the lid between stages to prevent drying out. Good for small repairs.

Grout
Mix powdered grout with water to form a paste. Only mix as much as you can use in an hour, so that it does not dry out.

Epoxy grout
This is difficult to apply but makes a hygienic seal for joints on tiled kitchen worktops.

Grout protector
This liquid seal stops the grout discolouring and keeps the finish clean. Leave grout to dry fully before application.

Grout reviver
Apply this paint-like substance to old grout to restore its finish. Availabel in white and a range of neutral colours.

Silicone sealant
Use this for a waterproof seal between tiles and a work surface, bath, wall or floor.