What is a pre-grout sealer?

A pre-grout sealer is applied to porous paving before grouting to reduce staining and prevent grout pigments from marking the surface. Use this as your water to dampen your slabs, leave 1st coat for 20 minutes, then apply a second coat, leave for an hour, then use your Flowpoint, Fuga-Pave, Titan or Dynamic as normal.

When should I use a pre-grout sealer?

Use a pre-grout sealer when working with porous natural stone such as sandstone or limestone to minimise the risk of grout staining.

Does pre-grout sealer stop all staining?

It significantly reduces staining risk but does not make the surface fully stain-proof. Careful installation and cleaning are still required. Use this as your water to dampen your slabs, leave 1st coat for 20 minutes, then apply a second coat, leave for an hour, then use your Flowpoint, Fuga-Pave, Titan or Dynamic as normal. Once you have applied your sealer, do not dampen your slabs before using your grout, otherwise you will wash it off.

Can I grout immediately after applying pre-sealer?

Follow the manufacturer’s drying guidance. Most pre-sealers require the surface to be dry before grouting begins.

Is pre-grout sealer needed for porcelain paving?

Not always. Porcelain is non-porous and generally does not require pre-sealing before grouting. However, specialist sealers are available that can provide additional protection, particularly for some lower-grade porcelain products.