Both types of grout ideally require tile surface temperatures of at least 10 degrees Celsius and no more than 40 degrees Celsius.

As above, the sealer can be applied to the tiles before they are laid, or at least 12 hours before grouting the tiles. Ensure you shake the bottle well and apply the product in accordance with the instructions on the bottle. Remember if using a roller, brush or cloth they must be appropriately washed out with white spirit and then disposed of carefully. Do not leave them exposed to direct sunlight, as if linseed is allowed to dry on a roller, brush or cloth, it can become self-combustible.

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Sealers will break down after 2-3 years (depending on usage and cleaning products used) so for regular cleaning use a sealer friendly cleaning product such as Neutral Tile Cleaner which has been especially formulated for the regular cleaning of Sealed Stone and Tile surfaces keeping them fresh with a pleasant lemon scent. Efflorescence

These floors continually breathe and with our sealants, this is not a problem and in effect rather simple as the same process as detailed above can be followed. Again this only really applies to cement-based grout. Using a sponge, you can seal the grout using an outdoor-rated grout sealer. Final Thoughts Once the grout has been applied and the floor is completely dry, then apply one final coat of Ironwax Satin/Gloss across the entire surface including the grout to provide the floor with a good level of protection. After 12 hours the floor can be walked on as normal.The best sealant we find for Terracotta is a topical sealer called Seal and Go that generally leaves a satin finish that coats the tiles to stop dirt and grime penetrating into the clay. An impregnating sealer (that generally leaves a matt finish) does not work particularly well with a soft clay such as Mexican Terracotta due to the high porosity of the clay. Tile Doctor recommends that Terracotta in particular requires a regular top up of sealer in high traffic areas once or twice a year. MEXICAN (hand-made)