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Subject: Retouching


From: Mark D. Gottsegen <mdgottsegen>
Date: Wednesday, May 31, 2006
Perry Hurt <phurt [at] ncmamail__dcr__state__nc__us> writes

>Applying a coating of acrylic medium between the paint and varnish
>is a good thought but probably not practical.  It would be affected
>each time the varnish is removed.  Especially if the painting had
>any texture the medium coating would be affected unevenly,
>potentially causing more complications. More importantly I've seen
>pure coatings of acrylic medium yellow dramatically.  Regalrez and
>MS2A (a ketone resin varnish) offer the lowest possible solubility,
>bringing them very close to usefulness, but at this point their
>solvents still affect acrylic medium/paint.  There are a few water
>soluble materials that might hold some promise, maybe Aquazol.  It
>usually requires a little alcohol though to get it into solution.

Maybe there is another solution, so to speak:  one manufacturer of
acrylic dispersion materials makes an acrylic dispersion varnish,
which is removable with a solution of ammonia in water.  How about

Mark D. Gottsegen
Chair, ASTM D01.57
Associate Professor
Department of Art
UNC Greensboro
1203 NC 62 East
Climax  NC  27233-9183
Fax: 336-334-5270

                  Conservation DistList Instance 19:60
                  Distributed: Thursday, June 15, 2006
                       Message Id: cdl-19-60-007
Received on Wednesday, 31 May, 2006

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