Re grouting a stone flagged floor

[barb1314]

Hi,hope someone can help.I would like to repair some small areas of the grout between our old kitchen flagstones.Without sounding totally stupid,what do I use? Do I mix something up,or buy something from a DIY store.Happy to do it myself but not sure of mixing ratios.It looks like it has some kind of sealant all over as well.I love this floor so don't want to mess it up! Thankyou.

[Clanad]

At least here in the U.S., one can buy ready-mixed grout in several different colors or shades and one can also buy grout that's dry in a bag to mix. Some experienced people prefer the mix it yourself type, but I find the ready-mix handier and easier to use. I wouldn't worry about the mixing ratios if you choose to mix it yourself, though. The instructions are quite clear. Just mix small batches to start. That way you can add more water or grout if needed.
You're correct, most grouts require sealing after curing for at least twenty four hours. It's usually brushed on, but can also be purchased in spray on cans.
Be sure to completely remove any discolored or damaged grout before starting the replacement and be double sure to clean up as you go along. Dried grout can be a real bear to remove and only gets worse as time goes on...
Best of luck!

[barb1314]

Thanks Clanad for all the info.Will give it a go this weekend.

[Doc Spock]

If they are real flagstones get a ready dry mix mortar bag. If you need more than one the colour will be constant. A repair will be visible due to colour difference.


Scrape it out and start again.