"I have a brick and flint wall which was letting in water due to holes in it. I couldn't find the right tools for the job but this stuff coupled with an icing syringe solved all the problems. Supremely easy to inject into holes (same consistency as icing) with none of the hassle of trying to force pug into tiny holes with whatever you can find. Levelled off with a cheap plastic artists paint knife (40p) Dried to a pleasing grey which is very hard to detect from even a short distance. Only gave 3 stars for reliability as it's too early to tell, but the plaster on the interiors wall is beginning to dry out - so I'm happy with it."
"Light grey paste, easy to apply and hard in a couple of hours if it's not too thick a gap to fill. Seems to shrink just a bit, but not crack or pull away from the surface filled. When hard, it is not "stone" hard and can be cut and shaped with a sharp blade. Cleans off tools easily provided it hasn't hardened already. Can't comment on long term durability but so far I would recommend it and use it again myself."
"Needed to fill a bit of wall 1m long by 10mm wide by about 10mm deep and this was easy to use, going on smoothly and levelling off nicely just with a filling knife. Took a bit longer to go off in places than I would have liked but I would still give it 5 stars and recommend it, I just need to have more patience.
I have also used this to fill holes in the house and had equally good results."