ᐅ Permanent joints for paving around the house?

Hello,

During our last two visits to different building material suppliers, I noticed samples of “polymeric joint sand” (one was called Stones Eco Fugensand) at the counter. This joint sand is supposed to be suitable for regular concrete pavers and hardens when watered. It is said to reduce weed growth in the joints. Does anyone have experience with this type of joint material, or is it better to avoid it?

Best regards,
Sabine

Experience with Dan Sand no grow. It works fine like this. It’s good. It works. Spread it, sweep it in, lightly water it, leave it alone, done. K.

You can also use Tubag paving joint mortar. And a bottle of schnapps as well— even tough men get sick from the smell of that stuff.

Nordlys schrieb:

Experience with Dan Sand no grow. It works that way too. It’s good. Effective. Spread it, sweep it in, lightly water it, leave it alone, done. K.

Dan Sand hardens? I thought it was just crushed stone.
My building materials supplier sold me Dan Sand as a "premium version" compared to regular crushed stone (1-3), but never mentioned anything about it hardening permanently.

Dan Sand no grow must be stated on the bag.

So, really?!

Is it still water-permeable, as if only loose gravel had been swept in?

Do you know what happens if the surface is cleaned with a pressure washer?
Does the loose gravel get washed away, and then the sand too, or does it hold up?

Once it has hardened, does it stay hard, or does it need regular rain?