Quote Originally Posted by Iasonas View Post
I thought about using SIC but it is pretty hard to find some here in Greece.
Quite right. As it is here in Serbia. I ordered it from Germany, here:

Dieter Schmid Werkzeuge GmbH
Wilhelm-von-Siemens-Str. 23
12277 Berlin
Germany

Fon +49 (30) 7017 484 80
Fax +49 (30) 342 1764
www.feinewerkzeuge.de
www.fine-tools.com
www.utensiliprofessionali.com
verkauf@feinewerkzeuge.de

150g of 60-grit SiC cost me about 15 EUR delivered, which is very reasonable and can probably lap 20 stones (YMMV).