Greasy marks when sealing - transit wax?

[rockmonkey]

I use a slightly damp rag dabbed into some good dusty floor sweepings. Marble or granite grinding dust works best.
Buff the polished surface and the dust will help cut through smears.
Follow with a clean rag or ideally with a lambs wool bonnet on a polisher(slow speed)
Smears always appear when a stone or any polished surface has reached saturation point so you are doing it right.

 

[t0m]

Thanks, all.
I ended up buying some Lithofin Protective Impregnator as this did not seem to be naptha-based. After much buffing the end result is ever-so-slightly cloudy. I am out of time as the plumber arrives to install everything tomorrow, so it will have to do!

I appreciate the dust tip, rockmonkey. Perhaps I will re-do the sealer at some point in the future...

Another question: anyone know the difference between Lithofin KF and FZ? I was only able to find FZ locally but the description of both products seems identical.

 

[Lithofin BOB]

Both the same product, FZ has moved to KF protective imp. Still bottle around as it changes over.