This is my first post on Artist Daily. I have a number of paintings, now dry, that were done using Liquin as the medium. I can see some areas I would like to change. Can I paint directly over the dry painting using Liquin or do I need to spray an alkyd based retouch varnish first?
Have a good read here: http://www.winsornewton.com/main.aspx?PageID=406#l1