There have been a few people that have suffered with this grey film but I’ve not received any updates as to whether or not it came off in the end! Although the sandy affect could be the jointing compound still left on the patio, even if it looks like none is there. In an absolute worst case scenario you would need to scrape a small section of paving jointing compound out to then top it up again but as I say, we’ve always got away with just topping it up! Another week later there appears to be a grey film over some parts of the slabs which a hard brushing and even scrubbing with some washing up liquid, fails to remove.

If you have a patio yourself that needs re-pointing then there would be no need to hire a professional as you could do it yourself. In his spare time he enjoys testing the latest gardening equipment and sharing his experiences here on the site.

I used it yesterday and the weather has been dry (wetted the area before hand), went out to check it this morning (almost 24 hours later) and it is still as soft as when I applied it nearly 24 hours earlier! Another downside is that the residue left over is hard to sweep off the paving slabs even with the stiffest of brushes. The only concern I seem to have is that I wonder if it has changed the colour of our stones or is this just an illusion.

Hello, we had our garden patio laid last year – gardeners used sika but I felt it never properly dried out. There’s no mixing required and, unlike many other products, you don’t need to keep the paving wet as you work. We have just grouted out pavings using the sika grouting compound and if I’m honest don’t think we removed the excess grout from the pavings sufficiently as it rained whilst constantly and therefore have not been able to remove it however now they are drying it seems to gave left stain marks on the pavings like sand grain stains?The resin and hardener will need to be mixed together in the correct ratio so that the grout will set properly. It’s pretty easy to apply, and not difficult to do within this time frame, but you still need to be prepared to work fast. One 6 kg bag is enough to cover approximately 2 m², although it depends on the size of the gaps between paving. While epoxy grout and sand and cement mixes are available, I’ve chosen to only recommend pre-mixed patio grout .