Copal painting medium is an oil paint additive that speeds the drying time of your artwork. This medium increases paint flow and imparts a high gloss and hardness when dried. Only dilute with turpentine or Grumtine, as petroleum based solvents and odorless thinners are not compatible with this product.

• May cause yellowing or darkening of colors over long periods of time
• Traditional medium
• Enjoy quicker drying times when painting

Copal painting medium is an oil paint additive that speeds the drying time of your artwork. This medium increases paint flow and imparts a high gloss and hardness when dried. Only dilute with turpentine or Grumtine, as petroleum based solvents and odorless thinners are not compatible with this product.

• May cause yellowing or darkening of colors over long periods of time
• Traditional medium
• Enjoy quicker drying times when painting