Use this to seal the canvas against atmospheric destruction of oil paintings from the back, where dampness can come through the ground.
Ingredients :
| 3 parts | beeswax | |
| 1 part | mastic tears |
- Heat the two ingredients until the resin melts into the wax.
- Strain through cheesecloth to remove any foreign matter.
How to use :
Place the painting face down and apply the hot mixture to it with a palette knife or wide putty knife. Scrape the coating over the entire surface to create a thin coat. Over this, lay strips of thin raw linen canvas (old bedsheets are excellent). Apply another coat of the hot mixture over the linen strips and press them firmly onto the original canvas back. Heat the knife or spatula in order to insure perfect bonding. A hair dryer can help soften the mixture and make it more pliable.
