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MITRA Forum Question Details

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  • Inner Glow panelsApproveRejectUn-ApproveSubscribeUn-Unsubscribe
    Question asked 2019-02-20 11:53:31 ... Most recent comment 2019-02-21 13:38:18
    Rigid Supports
    Question

    ​Has anyone used Inner Glow panels?  Does the wood check or split or has it been properly seasoned?  thanks so much.

Answers and Comments
  • ApproveRejectUn-ApproveUser Comment

    ​Kristin asked if I'd weigh in here, since I'm familiar with the panels. I wouldn't say that I'm an expert, exactly, but I do know that they are basically MDO (multiple density overlay) panels, sized and primed with multiple coats of gray-toned acrylic. MDO is a sign-making material designed for outdoor use (it's often used for construction signs)--it's plywood covered on both sides with a resin-impregnated paper that gives it a very smooth, grain-free surface that resists moisture penetration. 

    The guy that sells them describes the panel construction in a way that makes them sound like a unique thing that he invented, but... it's MDO. I'm not aware of any studies on the long-term viability of MDO as a painting support. I'm wary of plywood, as the surface veneers are basically guaranteed to check on a long enough timeline. 

    MDO is covered by a resin-impregnated paper, so you aren't painting directly on plywood, though, and the paper provides some moisture protection. But it doesn't protect the edges (aka the end-grain) which is where much of the moisture uptake in wood happens. The edges are primed, but acrylic primer isn't much of a moisture barrier, either. My personal suspicion is that MDO will be more resistant to checking than plywood, but may eventually start to exhibit the same sort of problems--deep cracks in the surface veneers that could telegraph through the paper covering. But that is 100% hunch. Some of the conservators here might have more info on MDO in general.


    -Ben Sones

    2019-02-20 12:38:35
  • EditDeleteModerator Answer

    I know that Golden Artists Colors has looking into the suitability of MDO board for murals. Here is a link where they mention it

    https://www.goldenpaints.com/technicalinfo_murals

    MDO has also been discussed on MITRA

    https://www.artcons.udel.edu/mitra/forums/question?QID=119

    Brian Baade
    2019-02-20 13:24:49
  • ApproveRejectUn-ApproveUser Comment

    ​Hi Ben and Brian,

    My question relates to an earlier post, I realize I'm still not clear about it.  Is covering plywood with cloth before gessoing sufficient to prevent checking?  And is the grain pattern of plywood verneer more prone to checking than the grain of solid wood panels (depending on the cut, I suppose)?

    Thanks,

    Koo

    2019-02-21 13:38:18
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