Sealing and aftercare

Sealing and aftercare

Honed & aged limestone, travertine & marble

This category covers majority of our stones and need a base sealant that impregnates the stone to form a barrier against porosity. The most commonly used base sealants are Fila Fob Fila W68 as they protect against both water and oil based stains by seeping into the stone and forming a protective barrier.

After the stone has been fixed and making sure it is clean and dry, a first coat of impregnator should be applied with a brush or sponge before the stone is grouted. Make sure the sealer has cured as per the manufacturer’s instruction prior to grouting. This application of base sealant before grouting is to prevent grout residues adhering to the stone surface, and also to prevent grout pigments absorbing into the stone. After grouting, a further one or two coats of the base sealant should be applied as required to further protect the stone. Any access sealant must be cleaned off the tile surface immediately as it may leave unsightly marks forming on the surface. Once the base sealing has been completed, the stone should be finished with a liquid wax surface sealant. This forms a protective layer, making it easier to clean daily dirt and grime from the stone surface. Two coats are needed. The initial coat should be allowed to dry before the second is applied.

Riven Slate

Slate is naturally less porous than most other stones, so a liquid wax surface sealant is sufficient for protection unless otherwise stated. These sealants are resistant to wear and tear and also dirt and dust repellent. One coat of either, FilaMatt, FilaSatin or FilaLongLife should be applied after installation but before grouting and then a further coat after grouting, ensuring the tiles are free from any grout residues.

Polished Stones & Basalt

This category covers limestone, marble, travertine and basalt. Due to polishing they have a lower porosity level so they will not absorb as much sealant. They only require an impregnating seal of Fila MP/90. One or two coats should be applied, before and after grouting. After 24 hours the residue should be removed with a clean cloth. FilaClassic should be used as an ongoing maintenance product to replenish the surface seal.

Wet Rooms & Wet areas

These areas are exposed to water for more intense and longer periods.. Therefore it is advisable for a more specific water protection measure to be applied involving one application of Fila Hydrorep or Fila HP98, followed by one to two applications of FilaFob or Fila W68. FilaFob should always be used with Fila Hydrorep and Fila W68 with Fila HP98.

External Stone

These areas will need protective sealing from natural atmospheric agents and organic matter. There is much debate about whether stone should be sealed externally or left to weather naturally. The two primary considerations are type of stone and quantity as sealing large external areas can prove costly. It is worth sealing an off-white limestone over a more rustic/darker sandstone or slate. The choice will come down to personal preference. External sealing of stone is generally with either one coat of Fila Hydrorep followed by one to two coats of FilaFob or alternatively one coat of Fila HP98 followed by one to two coats of Fila W68.


Like all surfaces, stone will require a degree of maintenance. Correctly sealed floors are required for minimal maintenance. Areas with heavy traffic will require more maintenance than other areas. Regular sweeping and vacuum-cleaning together with mopping is essential. Abrasive or acidic household detergents should not be used as they can remove the surface sealant or in extreme cases damage the stone. FilaCleaner is a neutral everyday cleaner which works in conjunction with Fila’s range of sealants. FilaCleaner should be diluted to use as an everyday cleaner, whereas Fila PS/87 is a more concentrated cleaner detergent for stain removal in its undiluted state, or diluted for more routine cleaning. Liquid wax surface sealants such as FilaSatin, FilaMatt, FilaLongLife and FilaClassic should also be used as part of the ongoing maintenance regime. Once a month, add a glassful of wax to a bucket of water and mop over it. This helps to refresh the protective surface seal. Incorrectly applied impregnators, sealants and staining problems all have their antidotes. Please contact us for further information.