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MITRA Forum Question Details

Image Picker for Section 0


  • Varnishing MetalpoingApproveRejectUn-ApproveSubscribeUn-Unsubscribe
    Question asked 2019-09-12 14:34:21 ... Most recent comment 2019-09-12 15:13:16
    Varnishes Drawing Materials

    I'm working on a mixed media metalpoint.  I'm using gold, copper, brass, bronze, silver and bismuth nibs to represent the hues of an oriole I'm depicting.  I do not want the base metals to tarnish; additionally, I'm framing the work without glazing.  For both those reasons I'll be varnishing the piece, with either a very thinned layer of platina shellac (the benefits & drawbacks of which we've gone over on the forum, so I won't belabor that issue) or B-72 (I know, a better choice, but I don't like how "plasticy" it feels/looks), then following either isolating layer with an application of wax medium.  Will this be sufficient to seal off the image and inhibit tarnishing?


    Koo Schadler

Answers and Comments

  • EditDeleteModerator Answer

    Probably. On the other hand, I have seen plenty of Dutch metal leaf and bronze powder painted decorations used in architectural interiors that that have tarnished over time. I am not positive that they were initially coated, so this may be a moot point.

    Brian Baade
    2019-09-12 15:13:16
  • ApproveRejectUn-ApproveUser Comment

    ​Thanks, Brian.  

    2019-09-13 09:04:32

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