The long lasting painting medium of the baroque period. Black Oil and a special Mastic Varnish are carefully mixed 1:1. The two liquid components change into a thick gel. When stirring the gel can be made liquid again. The gel may liquify by shipping. In case of higher temperatures in the summertime we recommend to use our 79099 Set to mix the gel freshly. The shelf-life is approx. 6 month. May re-gel if stirred slowly.
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