Egg Tempera as Metalpoint GroundApproveRejectUn-ApproveSubscribeUn-Unsubscribe
Question asked 2019-05-14 10:10:46 ...
Most recent comment 2019-05-20 10:55:33
Grounds / Priming
I've been playing with egg tempera as a ground for metalpoint. If layered thinnly and allowed to cure egg tempera is, like casein, a good ground (due to its PVC); yet I rarely see tempera mentioned as a metalpoint ground. Any thoughts?
Also, is egg tempera as vulnerble to hydrolysis as oil paints?
Answers and Comments
Neither oil paint nor egg tempera are overly sensitive to
hydrolysis in normal conditions (no contact with acids/bases, etc) Lean tempera would likely
make a fine metalpoint ground although it does seem, at least initially, to be less
hard than one bound in animal glue. On the other hand, it is far less responsive
to changes in relative humidity than animal glue. Let us know about any tests
that you perform.
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