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Question asked 2023-04-11 04:51:20 ...
Most recent comment 2023-04-12 08:56:57
Varnishes
To Whom it May Concern,
I am having a varnish crisis and am hoping someone can direct me as to my best recourse.
After spending a significant time informing myself about picture varnishes via Natural Pigments, I decided the best course of action in varnishing a series of four oil portraits was to apply a coat of Paraloid B72 (to prevent sinking), and then a follow up gloss picture varnish.
Technical details:
6 month old oil based portraits
application of Kremer brand Paraloid B72 (15%) with UV protection 1 coat
1 week drying time
Application of "Sennelier gloss picture varnish" (1 coat)
after two weeks of drying time, when I removed the paintings from the stretchers to be rolled and shipped I noticed the varnish lifting in any areas that were mechanically bent, revealing that the varnish had not properly bonded to the surface. I am at a complete loss as to what went wrong. The paintings were created with very little oil and appear to be cured fortunately as the varnish is lifting without removing any of the paint film.
At this point, I am wondering what I should do to remove the old varnish without damaging the paint film underneath, and hoping someone can shed some light on what the problem may be, as the paintings will still need to be varnished after hopefully removing the failure. They are heavy Umber paintings, and I would like to apply an isolating varnish before the final picture varnish to prevent sinking.
I am located in Europe and any products that you may recommend would be most helpful. I was able to locate certain resins here via natural pigments EU site, but am unsure what solvents to use do dissolve them because they do not sell them on their EU website and I will have to procure them separately. When contacting them for help in understanding what solvent to use they have not responded.
I would be immensely grateful for any advice you may offer.
Kindest regards,
Jody
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