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Subject: Regalrez


From: Christabel Blackman <christabel1>
Date: Tuesday, November 6, 2007
Annelyse Barton <annelysebarton [at] hotmail__com> writes

>I have recently started using Regalrez resin for the first time and
>have been testing out various recipes for the varnishing of
>paintings. I have been brush varnishing with quite a low percentage
>of resin but have found that it produces a very glossy varnish

Regalrez is a very useful and adecuate varnish for conservation
purposes, and it is a pity to discard it for minor application
difficulties. A current article which I have written called Choosing
Varnishes specifically deals with properties, uses and application
of Regalrez and is available at


Method of application is an important way to achieve the required
finish of a varnish. Once the varnish reaches its no flow point, one
can keep working the surface in a scumbling manner with a brush, to
achieve a matter finish. Alternatively spraying the varnish onto the
paintings surface, regulating distance, angle, and nozzle aperture
is helpful. However it is also possible to add a small amount of wax
to the varnish recipe by warming the varnish with the pre-dissolved
wax (using a baby bottle warming device as a bain marie to control
temperature). This way it is possible to regulate the surface shine.
I recommend this recipe for example:

    20 grams Regalrez 1094
    100 ml Shellsol D40
    0.4 gms Tinuvin 292
    1 gms (less than 5%) Cosmoloid 80H

I insist, that it is a pity to abandon with haste such a good
varnish, I have been using this varnish for about 8 years on all
sorts of paintings from Gothic panels to contemporary works, with
excellent results.

Christabel Blackman
Easel painting conservator
Valencia, Spain

                  Conservation DistList Instance 21:31
               Distributed: Wednesday, November 21, 2007
                       Message Id: cdl-21-31-003
Received on Tuesday, 6 November, 2007

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