Do You Need to Seal Unsanded Grout?

Unless it is a modified formula, sanded grout should be sealed after installation. Unsanded grout contains no sand and is best used for thin grout lines and for delicate tile surfaces as well as for most glass tile. Sealing is not required with unsanded grout in some applications, but it is usually recommended.

How do you seal unsanded grout?

Choose a penetrating sealer that breathes as it soaks into the tile and grout. Apply it with a thin, disposable sponge brush, cotton swabs or dedicated sealing applicator. Keep the sealant on the grout lines only if possible, avoiding any overlap onto the tiles.

What kind of grout does not need to be sealed?

The only type of grout that doesn't need sealer is epoxy, which is inherently pre-sealed.