"Nicole, I think you meant to ask how you can speed up drying? I have been using WSO for several years. First, WSO or WMO (water mixable Oil) are "OIL PAINTS". They dry the same time as regular oils. They are to be used like…"
"I switched from Cobra to Holbein Duo and Lukas Berlin. Cobra left tacky for a long time and the paint itself was very oily. You can also now get Holbein Duo Linseed oil specifically for WSO. It is great."