Kendal grey smooth honed sandstone - Grouting gone wrong, help?

[Jeff J]

Hi all,

I'm looking for some advice and be great if you could help me. I have layed Kandla grey sawn smooth honed sandstone patio in my garden and all was going well until I grouted the patio. I used pointfix jointing compound in the black colour to grout the patio. Unfortunately where I have brushed the grout over the patio and into the gaps it has left bad stain on the slabs and especially bad stain where I first poured the mixture out of the bucket onto the patio. It's almost like the moisture/dye from the mix has soked into the slabs. I have tried a jet wash and hot soapy water but it has not touched it. I was wondering if you know of any cleaning products that might help me remove these stains?

Thank you
Jarred

[Tony McC]

Did you *thoroughly* soak the paving before applying the jointing compound?

[Jeff J]

No because the instructions didn't tell me to. I applied it when the slabs were dry.

[Tony McC]

There's the answer then!

Is this definitely PointFix? It's a long while since I read/reviewed their installation guidance, but I don't recall it being declared as suitable for dry application.

[dig dug dan]

Tony is spot on. Wet the paving, then wet it some more and if in doubt, wet it again, all the time while brushing it in, use water.