Skip to Main Content
Sign In
Toggle Navigation

Open the Navigation Management window, which can be used to view the full current branch of the menu tree, and edit it.

  • Instagram
  • Facebook

MITRA Forum Question Details

Image Picker for Section 0


  • Varnishing acrylic and oil paintingsApproveRejectUn-ApproveSubscribeUn-Unsubscribe
    Question asked 2019-09-04 13:45:24 ... Most recent comment 2019-09-05 22:59:56

    I have a few questions about varnishing that I would like to clarify:

    1. Some manufacturers claim their acrylic​ mediums to be usable as varnishes as well. I assume that the water-based ones won't work on oil paintings, but can they really be used for acrylic paintings?
    2. Some acrylic varnishes are solvent-based (mineral spirits, etc), and it seems those are the ones compatible with oil paintings. However, are there any advantages to using them on acrylic paintings? Some claim to provide UV protection, but is this relevant and (generally) of higher degree than water-based mediums used as varnishes?

Answers and Comments

  • EditDeleteModerator Answer

    ​A final presentation varnish should be removable. There are water-based varnishes for acrylic paintings that are removable. Most synthetic-resin solution picture varnishes (solvent-borne) generally meet this requirement too. Acrylic dispersion painting mediums (water-based) that are also sold as varnishes are not removable (at least not without specialist treatment), and, like acrylic paint, dirt and dust can penetrate these porous films. Acrylic mediums can, however, be applied as an isolation layer before a final varnish. Varnish with UV light protection is an effective, sensible measure against color change and other degradation from light exposure.

    Matthew Kinsey, Utrecht Art Supplies
    2019-09-04 22:00:41
  • EditDeleteModerator Answer

    ​Thanks Matthew. Great response and school started this past week and I have been swamped.

    Brian Baade
    2019-09-05 22:59:56

Page Settings and MetaData:
(Not Shown on the Page)
Page Settings
MetaData for Search Engine Optimization
MITRA Forum Question Details
This page cannot be accessed until you accept the Terms of Use, which can be found here.
Please note that this Terms of Use system uses cookies. If you have cookies disabled you will not be able to accept the agreement. If you delete our cookies you will need to re-accept the Terms of Use.
  • The Department of Art Conservation
  • 303 Old College
  • University of Delaware
  • Newark, DE 19716, USA
  • Phone: 302-831-3489