saintjohnbarleycorn Posted September 2, 2019 Report Share Posted September 2, 2019 Is it a good idea not to mix different species of trees when making varnish, or does it make it more a crap shoot to the end result? thanks Quote Link to comment Share on other sites More sharing options...
Jim Bress Posted September 2, 2019 Report Share Posted September 2, 2019 Sounds like open fermentation. All wild yeast welcomed to the party. Could be the best brew ever...or not, certainly unique. Quote Link to comment Share on other sites More sharing options...
Julian Cossmann Cooke Posted September 3, 2019 Report Share Posted September 3, 2019 From my modest experience -- relative to that of many people here which is far more extensive --, my theory is that the issue is not so much one of resins from different trees but rather resins that have been oxidized to a different degree. Mixing in softer resins creates something of a crap shoot in terms of the mechanical qualities of the final varnish. I have heard people describe fresh pine resin -- even the "tears" sold by some of our usual suppliers -- as drying, but not hardening, so not fully drying in a reasonable amount of time. I have a mix of highly oxidized, caramel-looking resin samples I have collected from trees from which I have also collected resin in a white, gummy form. To date, I have thought it wise to use just the heavily oxidized stuff in my spirit varnish. At some point, I'll probably experiment and mix in the softer stuff in different proportions and see if my theory holds up. But to be on the safe side, I would stick with (NPI) one or the other in any given batch. Too unpredictable otherwise. Quote Link to comment Share on other sites More sharing options...
Guest Posted September 3, 2019 Report Share Posted September 3, 2019 7 hours ago, saintjohnbarleycorn said: Is it a good idea not to mix different species of trees when making varnish, or does it make it more a crap shoot to the end result? thanks Spirit or oil varnish? I have never mixed resins from different trees when cooking oil varnish. I do mix different oil varnishes of different kinds when varnishing but it is after testing each varnish on samples to determine the differences in the varnishes and what I need to accomplish in the film. For example sometimes the wood needs a stiffer harder vanish and some times not. Quote Link to comment Share on other sites More sharing options...
saintjohnbarleycorn Posted September 3, 2019 Author Report Share Posted September 3, 2019 thanks , that makes sense Quote Link to comment Share on other sites More sharing options...
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