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MITRA Forum Question Details

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  • Acrylic primer under oil paint: solvent sensitivity?ApproveRejectUn-ApproveSubscribeUn-Unsubscribe
    Question asked 2017-05-26 18:39:48 ... Most recent comment 2017-05-26 19:27:30
    Grounds / Priming Acrylic Oil Paint

    ‚ÄčI know that the sensitivity that acrylic polymer films have to solvents presents challenges when it comes to the cleaning of acrylic paintings. Is there a similar concern for oil paintings executed on an acrylic ground? Or do the layers of oil paint (assuming that the ground is well covered) provide an adequate barrier against the action of sovents used in cleaning?


Answers and Comments

  • EditDeleteModerator Answer

    Of course this is a complicated question...and it depends on which solvent(s) we are talking about but in general, yes, solvents can and may affect the underlying acrylic layer. We do think that having the oil binder present on top and throughout will provide a sort of "buffer" but this would need to be tested to confirm our theory. Oil paint applied on top of a traditional gesso ground will, for example, drastically reduce the ground's sensitivity to water applied to the surface...but not completely. Anyhow one way you can mitigate potential problems in the future regarding this issue is to use varnish coatings that remain soluble in low aromatic mineral spirits which acrylic dispersion paints/grounds do not tend to be sensitive to (e.g. Regalrez, Golden MSA).

    Kristin deGhetaldi
    2017-05-26 19:27:30

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