Friday, January 22, 2010

as yet unbaptized....

...may become the title for this one. It's coming on fun but the color constraints are starting to irk me. I cut off a piece of screaming chartreuse from my rag tote last night and draped it here and there around the piece looking for a niche. No luck last night but that was far from the last word on the matter. It's a tattered piece of damask that wants to carry on. You can bet I'll oblige.

I got a response to the question of UV protective qualities of the Golden matte medium I am using on the mummies. Summed up - NO.. but Scott sent a raft of useful links and information:

Hello Deb,

Most acrylic mediums do not offer any UV filtering, as this requires special chemical additives. Both of our conservation grade varnishes do have UV filtering compounds in them, and one medium, Gel Topcoat with UVLS.

Gel Top Coat with UVLS:

Our regular Matte Medium does not offer UV filtering.

Some of the confusion that arises in this regard, has to do with the fact that all acrylics are naturally UV resistant. This is sometimes touted as one of the attributes of acrylic, and is then sometimes confused with UV filtering capabilities. UV resistant means that the acrylic molecules are resistant to UV light and the various types of damage that UV light can have on many different materials. This is one of the main reasons that acrylic is used in so many coatings today, including most house paints.

Acrylic mediums can certainly hold fibers together, and can add a different surface. They can add a bit of water resistance, especially glossy sheened products, however, all fine art grade acrylic paints dry to films that are porous to water vapor and air, so they will not work to completely seal a material from moisture. In this regard, they may help to add a longer life to some materials, but they will not necessarily stop other factors from causing various forms of degradation. Oxygen is a major cause of some kinds of damage to materials, as are acids that might already be in the material. Things such as cardboard or newsprint will yellow and become brittle over time due to acids in the fibers. An acrylic medium will not stop this from happening.

Here are some links with more general information about acrylic, along with technical information about our varnishes, which may or may not be suitable for your fiber pieces:

Golden Acrylics on Fabrics:

Aspects of Longevity of Oil and Acrylic Artist Paints

Will it Last?

Dont Fade Away article about msa uv testing on inkjet prints

Here is the varnish application literature :

Here are the individual varnish product tech sheets:

Creating a Brushable Isolation Coat - youtube video:

Brush Application of an Isolation Coat - YouTube video:

If you have any further questions, or need additional information, please do not hesitate to contact us.

Best regards,

Scott Bennett
Technical Support
Golden Artist Colors, Inc.


Phyllis said...

Your stitching reminds me of confetti, so beautiful and delicate. You are really growing artistically as it seems the imagery is taken from a deeper part of your consciousness.

How is your sweet kitty doing?

arlee said...

i continue to be amazified (?!) at those delightful spoobits!
good info there--watch the moisture issue though--blood sweat and tears should be dried out first :}

arlee said...

AAAAAAAAA--MARTINI!!! That's what this remind sme of--black olives and pickled onions!

Catherine V. Bainbridge said...

And I was think of black cherries and whipped cream... It's so delicious! You should carry on!

Wow! Amazing information. Tahnks for sharing that. Nice to see that someone's knowledgable about the products they represent. Good for you Scott! THAT rarely happens here in Costa Rica! :)

Anonymous said...

Deb, could you post Scott's letter to SAQA Yahoo list so they links are live? I've tried cutting and pasting but many go nowhere...WEALTH of information here! If SAQA doesn't do, can you send me his email directly? I use gel medium a LOT and Golden's is the only way to go, Liquitex Matte Gel Medium is milky when dry. Regards, Debbie Bein