I have read posts that you can sand down parts of an oil painting that has dried in an effort to fix/change what you previously painted.
Is there a particular grit of sandpaper that should be used? If you are sanding canvas, do you sand down to the white canvas?
What is the best way to clean the canvas after sanding before painting?
Thanks for any advice.
Bill
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It is a practice canvas (I guess they all are at this point
Hope you are on a quick road to feeling well.
Reusing canvases is a great way to save on materials. Once you paint over it no one will know it's a reused surface. And you just might knock out a masterpiece on it.
I need to start taking notes on so many of the very informative past posts, such a wealth of information.
Thanks @Abstraction, I had some 180, it seemed to work ok, but I haven't painted over it yet to see the actual results.
@A_Time_To_Paint, my situation similar, a larger painting that a part when totally wrong, knew it wasn't right when doing it, but kept going anyway. I was thinking to just scrap it but I still want to try and save it, even if its only for the practice.
If you want to try it you can buy a nice fine grained rounded off pumice stone for a few bucks.They are sold, these days, for removing calluses from soles of feet.
The high-tech cleaning gel made for safely cleaning keyboards and car detailing might work well for removing sanding debris.
The old masters found ways to make things work using what was at hand, like pumice stone. It's hard to imagine the challenges they faced in those times without the technology and communication we take for granted today.
NASA spent a fortune developing a pen which could reliably write in outer space. The Russians used pencils.
I know that this will still be a very small amount compared to manufacturing industry, but still...
PS - my pedantic evil twin says that oil paintings on canvas have grounds, not (traditional) gesso. She says other things as well, but I am taking her away for more mood-controlling medicine.