ᐅ Mix joint stabilizer (jointing compound) and jointing sand and sweep it into the paving joints?

Hello everyone,

I’m about to finish the patio I’m currently paving.

Regarding jointing, the choice was between permeable jointing mortar or simple jointing sand, which would then be treated with a joint stabilizer to create a solid joint. I’ve already had good experience with the joint stabilizer on my paved stair landing in front of the house, where the joints were filled with quartz sand.

Now the joints aren’t filled yet, and I’m wondering if I could mix the jointing sand with the joint stabilizer directly in my mixer, and then brush this mixture into the joints like you would with jointing mortar?

The big problem with the joint stabilizer on already filled joints is that you either have to work very precisely along the joints, for example with a small bottle and a dosing nozzle, or you spray the entire surface with a pressure sprayer. This leads to very high consumption because most of the product lands on the paving stones and is absorbed there, which is not the intended purpose. However, it does have a color-enhancing impregnating effect, which means the first method, carefully applying only to the joints, is quite labor-intensive since excess material on the stones would be visible later.

Therefore, I’m considering mixing the stabilizer with the jointing sand beforehand and then brushing it in together. What do you think? Does anyone have experience with or knowledge of this product?

Ready-made jointing mortar is very expensive, while regular jointing sand is already available and naturally cheaper.