Hi, I bought a competent amatur effort at a rumage sale for 2.99. I can afford to experiment. The frame makes me think it's from the mid 1960s or 70s. How can I tell acrylic from oil? And.. How do a give a light cleaning to the surface of either medium? Thanks very much.

You can use a very small amount of turpentine in small out of the way place to see if the paint will soften at all. If you can raise any color at all it is oil paint

Thank you. I will try that.

http://www.goldenpaints.com/justpaint/jp5article2.php


:) :)