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Vunerability of acrylic paintings to environmental pollution

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Val N. Tyne

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Feb 13, 2002, 10:26:35 AM2/13/02
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In article <20020212223938.993$C...@newsreader.com>, danf...@yahoo.com says...

>two coats of Grumbacher Acrylic Medium and Varnish

>a minimum of two
>coats of Grumbacher Picture Varnish Spray.

Sounds like a great sales spiel to me!
Should raise Grum's stock price if everyone
begins buying all that varnish.

Pacific Lost Girl

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Feb 13, 2002, 1:26:08 PM2/13/02
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hmm.... I've *never* varnished my acrylic works. Now I'm wondering if I
screwed-up. :(


Jiri Borsky >

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Feb 13, 2002, 2:48:10 PM2/13/02
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Thank you Dan Fox, for sharing the info.

It makes me smile when people say: "*I* never do such a thing!"
implying the futility of a particular procedure.
It reminds me of comments to my paintings depicting English Proverbs
and Phrases. "Never heard of it before!" some people said emphatically
to the less common proverbs, indicating: "therefore it cannot exist."
Naturally, as English is not my mother tongue, I had researched all the
proverbs meticulously from such sources as Brewer's Dictionary of Phrase and
Fable.

Back to varnishes:
What the Grumbacher's reply omits to state is the SOLUBILITY of varnish,
making it REMOVABLE at a later date, should the need arise.

Permit me to sketch a scenario:-

In the house of Mr&Mrs Rich is a collection of paintings, including an acrylic
by certain Joe Novar and one of my own pieces.
Joe Novar does not bother to use removable varnishes.

The house is burgled. By culturally challenged thugs, obviously, as they take
cash, VCR and a lap-top only, leaving Joe Novar and my works on the walls. :-)
Sadly, they also thrash the place, daubing and flicking paint onto all surfaces.
The damage is discovered several days later. The grafitti paint is by now
thoroughly dry.

For the sake of the argument, the paint vandals used was also acrylic based.

I would quickly reassure Mr&Mrs Rich.
In the studio I would lay the work flat, soak it in the appropriate solvent
which would soften the varnish (and the varnish only!), and remove it together
with anything daubed and scribbled on top of it. The painting underneath
should be unaffected.
After drying the piece I would then re-varnish, and collect my
fee from the grateful owners.

What would Joe Novar do?

Jiri Borsky
http://www.borsky.dial.pipex.com/

- - - - - - - - - - - - - - - - -
(nothing added below)

Dan Fox wrote:
>
> The question of whether acrylic paintings required varnish or other
> protection to prevent environmental damage was brought up recently. Here is
> the opinion of the Grumbacher tech people to my query:
>
> Dear Dan,
>
> All artists' acrylic paintings are subject to the adverse effects of
> environmental pollution. For that reason we recommend a two-step varnishing
> procedure:
>
> After the painting has been allowed to thoroughly dry, brush apply at least
> two coats of Grumbacher Acrylic Medium and Varnish that has been diluted
> with water 1:1. You must allow each coat to thoroughly dry before applying
> the next. Allow the last coat to dry at least 36 hours before proceeding
> to the next step. This will assure that no moisture is left in the
> painting. When the first step is completed, spray apply a minimum of two
> coats of Grumbacher Picture Varnish Spray. This is available in either
> Gloss or Matte. If varnishing a large painting and You need a matte finish,
> you will get best results by applying at least 2 coats of the gloss varnish
> first, followed by the number of matte coats desired.
>
> Please remember that when spray applying a varnish to a painting, the
> painting should be in the vertical position. You cannot get an even
> application of the varnish if the painting is laying flat. To prevent runs,
> follow the directions on the product label, spray in one direction only (do
> not swing the can back and forth), and start and stop the spray off the
> surface of the painting.
>
> --
> Dan

reg

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Feb 13, 2002, 7:24:10 PM2/13/02
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naw, been painting with acrylics for 20 years and i coat the finished
work to level it some, but the clear i use is just the acrylic medium i
mix my paint with,.. the work around my house gets washed yearly with
Castile soap and a sponge to get the dust and cig residue from them and
i've never seen any degradation, ...now sun that's another fish,...

Pacific Lost Girl wrote:
>
> hmm.... I've *never* varnished my acrylic works. Now I'm wondering if I
> screwed-up. :(

--
Reg* ~~~~Anyone who complains that Windows is a unworkable OS
never owned a hawg(HD),.....~~~~~

reg

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Feb 13, 2002, 7:27:01 PM2/13/02
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sell them a new painting???

--

keith o'connor (tinmangallery.com

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Feb 13, 2002, 10:26:53 PM2/13/02
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I think I see where they are going on this. I have a few questions.

1) brush apply at least two coats of Grumbacher Acrylic Medium and Varnish


that has been diluted with water 1:1.

Does this mean two coats of acrylic medium and two coats of varnish in that
order?

1) Grumbacher Picture Varnish Spray. I assume this is an acrylic spray.

This system would provide a provide a layer of protection in case of damage.

take care: keith

Dan Fox <danf...@yahoo.com> wrote in message
news:20020212223938.993$C...@newsreader.com...

> 'The self, violent and constant, is the subject of all art.' - Barnett
> Newman http://www.danfoxart.com


Caren

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Feb 17, 2002, 2:00:53 AM2/17/02
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I assume that Grumbacher Picture Spray Varnish is oil based, is that
correct?
I always use plenty of acrylic matte and gloss combination at the end of a
painting. However, I have had a problem with cigarette smoke (not from my
house) damaging the painting because I can't get it cleaned off. If I had
used the oil based varnish it would be removable along with the grime and
cigarette tars.
I have always been afraid to use an oil base varnish because I don't know
how to get it off. Could someone please explain in detail what to use and
how to do it. Can you get enough off to actually go back and repaint areas
with acrylics or would there always be some residue? Does this particular
product come in a spray can or do you need some other means of spraying it
on?

--
Caren F. Keyser
cke...@cfl.rr.com
"keith o'connor (tinmangallery.com" <scot...@rogers.com> wrote in message
news:18Ga8.1002$rL....@news1.bloor.is...

NightMist

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Feb 17, 2002, 10:17:35 AM2/17/02
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On Sun, 17 Feb 2002 07:00:53 GMT, "Caren" <cke...@cfl.rr.com> wrote:

>I assume that Grumbacher Picture Spray Varnish is oil based, is that
>correct?
>I always use plenty of acrylic matte and gloss combination at the end of a
>painting. However, I have had a problem with cigarette smoke (not from my
>house) damaging the painting because I can't get it cleaned off. If I had
>used the oil based varnish it would be removable along with the grime and
>cigarette tars.
>I have always been afraid to use an oil base varnish because I don't know
>how to get it off. Could someone please explain in detail what to use and
>how to do it. Can you get enough off to actually go back and repaint areas
>with acrylics or would there always be some residue? Does this particular
>product come in a spray can or do you need some other means of spraying it
>on?
>

http://www.goldenpaints.com/varnapp1.htm

Has lots of info on this.

I use the MSA, and apply it with a spraybrush

I have never personally fancied most grumbacher products, but whatever
works for you.

Barbara

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