Varnish recipe 13.06.2021

Colophony cooked for 15+ hours at 150 - 180 C

Linseed oil heated to the same temperature and slowly stirred into the colophony

Mastic drops added slowly while stirring

Balsam turpentine heated to simmer

Filtered and decanted into a glass jar

Colophony     140 g -> 75 g

Linseed oil     75 g 

Mastic            15 g

Balsam turp    45 g