Bostik Cementone Rapid Setting Cement, for Interior & Exterior Use, Waterproof, Colour: Grey, 10kg

I bought this as we had 2 small holes around the edges of the deep kitchen drain which was discovered by the professional who came to unblock it. He said we needed to get it repaired to prevent the waste water damaging our foundations. I mixed up a small quantity of the mixture in an old plastic pot and stirred it with an old gardening knife. It mixed up like icing sugar. I got it to a stiff consistency and filled up the gaps. To ensure it dried I used a hairdryer on it for a while, and did not use the drain for a couple of hours. The product is very easy to use, and as I wore plastic gloves made no mess. I never bother to check sizes and assumed when I ordered the product it would come in a small pot. The container is huge, and I could hardly lift it. I will embark on further filling on the garden path , weather permitting, and will offer some to my neighbour as she may wish to use some. This is a truly excellent product, easy to use, and very good value.

Ce n’est pas très pratique. Il est impossible de mélanger tout le ciment à l’eau sauf à utiliser un mélangeur mécanique. Et la prise est très rapide.

Tips from a first time user and DIY novice... Do not attempt to mix this full tub by hand, I seriously doubt it's possible. My lad tried, he's a big strong lad and there was no way he could get it all mixed with a trowel. You need a drill with a mixing attachment, or even some thick rubber gloves that cover your arms so you can get your hands right in there (do not do that without protection). Otherwise, get a bucket and mix a little at a time. Don't forget you need a mask and eye protection, as soon as we opened the tub there was a cloud of it. We managed to mix the top half of the tub, then there was an unusable layer and still some powder at the bottom, a waste but it was user error. The product itself is great, but it should come with better instructions for those who are inexperienced. I will be buying more to finish the job.

Rapid setting dry mix cement ideal for drive patching

Bought to fill between cobbles and stone slabs as I was fed up with weeding all the gaps. I dampened the stones down then mixed the cement a bit at a time into a small tub into a thick workable paste. Using a small filling knife pointed all between cobbles and slabs. Dries very fast in the tub so you have to work quickly with each small amount you mix. Did the job in the summer and is all still great.