Get grip on Clay

[b3ns]

Hi all!

I hope I post this in the right section,

So I've got a quite specific question here. We're currently renewing our track in Belgium (Sprimont), and it's an outdoor track made of clay.

Now my question is, do anyone know what kind of product/liquid, we could spray to get more grip on clay?

Or is there any known product everybody uses automatically when creating a track made of clay?

It will be made for 1/10 and 1/8 buggies and 1/10 Sort Course.

I don't know where I heard once that Coke can be sprayed on clay to get more grip... Really don't know if it's a great idea...

Hope to read something interesting soon!

cYa