NassboardsLarsen Stone & Grout Protector – Clear-Drying, High-Performance, Advanced Stain Resistant Impregnating Sealer– Protective, and Weather-Resistant Clear-Drying Stone & Grout Protector

Simple to apply, used a brush to put it on mosaic natural stone walk in bathroom floor. Left it to dry for 3 days whilst away, looks OK & hopefully has sealed the stone.

Light milky liquid, simply applied with a small sponge, rubber onto the renewed grout but cant tell for sure if it's worked or not. Must be working as this is week 2 and the grout remains white. Or is that all down to the quality grout product used. I don't know

This is brilliant, just had 35 sq meters of porcelain tiles laid and the grout I thought was darker but it's dried white, bought this to protect the grout for staining (internally I used it)I used a paintbrush to quickly paint in all the grout lines, my tiles are porcelain and non porous so didn't need to coat my whole floor.1 litre and I used around a third for one good wet coat. Tiles 300x600 with 3mm grout space.It dried as if nothing was there at all, did not change the colour or anything in the slightest.Today, I spilt blackcurrant juice in the kitchen and it just beaded over the grout lines and wiped up with a dry piece of kitchen roll, no staining or anything. Highly recommend.Note that I did really saturated the brush when applying so it gave a good soaking to the grout.

Great product so far, at great price and delivered quickly

This stuff does exactly what it says it will.I was a bit skeptical at first, but I did my research and this had the best reviews and it did not disappoint.It did say 2 coats would be enough, but as this was my first bathroom tiling venture, I wanted to make sure it was water tight to prevent any leaks, etc.I left it to dry for about 2 hours between coats just to make sure it had penetrated the tiles well enough.I would definitely buy this again if ever needed.

Exactly what I wanted to seal grout between tiles in shower enclosure.Easy to apply and gives a great finish.

Used to seal grout in shower that was slowly washing out making a right mess, dried it out and put this stuff on and its fully waterproof now

It was easy to apply and did exactly what it was supposed to! Recommended