This is the one I used.
https://www.bunnings.co.nz/bondall-10l-granite-grey-driveway-and-garage-floor-protector_p8901847
Its not bad, but we'll see how long it lasts. I tried to do the right thing in the preparation to get the best results. Grinding the surface would have been better but this space didn't warrant that much work so acid wash it was. The acid wash was quite effective leaving a nice rough surface for the paint to key to.


















