I purchased one of these: https://www.bunnings.com.au/specrite-2200-x-600-x-26mm-hevea-multi-use-panel_p0447352?srsltid=AfmBOopfWn7FE82TRuitWN_i4bYjAFXmags__e2F_y_wNQ33sfQz247w
It's got a bit of a rougher finish so I was wondering what the best sandpaper is to use to smooth it out, as well as any recommendations for an oil to put on it?
Thank you :)