I think every artist should try Dammar and 10 to 20% Wax. It is by far the most painterly medium, and as you can see under the misspelled word DAMMAR, it has stayed clear for 5 years. Without any drier it was dry in three days. If you are going to paint an indoor mural, this is the medium! There have been some bad reports on dammar, this should set the record straight. A+