GOLDEN Gel Topcoats w/UVLS are formulated with 100% acrylic polymer dispersion incorporating a system of Ultra Violet Light Filters and Stabilizers (UVLS) for protection against the harmful effects of ultraviolet radiation. When used as a topcoat they help lower overall water-sensitivity and limit air exposure, while providing increased durability for fragile surfaces.
GOLDEN Gel Topcoats are not intended as a commercial topcoat for high wear items. They dry to a permanent, flexible, non-removable coating. The Gloss version dries with great clarity and a highly reflective surface, while the Semi-Gloss dries to a translucent, more wax-like finish and like all topcoats may appear to alter color saturation.
GOLDEN Gel Topcoats are fully compatible with other GOLDEN Acrylic Colors, Mediums, Gels and Pastes, and can be blended with these products in any proportion. While formulated primarily as a topcoat, they can be used like other Gels to modify sheen and transparency, create texture, provide a clear barrier or coating for subsequent paint or other materials, and to extend product.
In our testing a 10 mil film of the GOLDEN Gel Topcoat provided a similar degree of UV protection as the same thickness of GOLDEN MSA Varnish w/UVLS, and greatly limited the fading of fugitive dye-based inks after exposure to 1600 hrs. in a QUV Weatherometer, at 140° F, with ambient humidity normally below 50%. The cumulative UV exposure correlates roughly to the amount of UV energy from 100+ years of typical indoor gallery-lit conditions.
General Use as a Topcoat
For Fine Art and Craft use only. Not intended as a commercial topcoat for high wear items.
Apply as desired using brush, palette knife or other tools. The thick consistency of the GOLDEN Gel Topcoats will retain tool marks and textures, although the marks will relax slightly during drying. Apply carefully to avoid generation of foam or entrapping air. May be thinned with water to modify viscosity. Always test for your application before applying to anything of importance.
The Gel Topcoats, when used as a final layer, should greatly increase the longevity and lightfastness of whatever media you are working with. Overall they will lower water-sensitivity, limit air exposure, and provide substantial UV protection. However, if exhibiting pieces without glass, we strongly recommend also applying one of our removable varnishes to facilitate cleaning and future conservation. Please consult our website for information regarding Varnish Application.
Use Over Water-Sensitive Materials, Such as Watercolors and Inkjet Prints
When working with water sensitive materials, such as watercolors or digital prints, including those made with GOLDEN Digital Grounds, it is critical to always test for the potential water-sensitivity of the various materials being used. If testing shows the materials can be easily damaged or re-activated with moisture, we strongly recommend initially sealing or fixing prints with either GOLDEN Archival Varnish (Gloss) or GOLDEN MSA Varnish (Gloss). Failure to do so can cause permanent damage to your work.
With GOLDEN Digital Grounds
Gel Topcoats can usually be applied directly to inkjet prints that are fully dry and have been printed on our GOLDEN Digital Ground White (Matte). However both Digital Ground Clear (Gloss) and Digital Ground for Non-Porous Surfaces are very water-sensitive and great care must be taken when working on top of them with water-based materials. While Gel Topcoat, when applied undiluted, will often not cause any issues, many variables can impact this: drying time, ink system, thickness of the ground and gel coatings, and degree of surface agitation, to name a few. For these reasons, it is essential to always check for one's application using a test print before applying to anything of importance. Safest practice is to first lower any potential water sensitivity by first applying either our Archival or MSA Varnish.
Refer to GOLDEN Just Paint issue #14 for additional testing and application information when using GOLDEN products over inkjet prints.
Use as a Painting Medium
Although developed to be applied as a final layer, the GOLDEN Gel Topcoats may also be used like other GOLDEN Acrylic Gels. They are compatible with GOLDEN Paints and Mediums, where they can be used in separate layers or blended in any proportion. Like other Gels they can also be used to create gel skins, image gel transfers, decoupage collage elements, to extend paints or increase their transparency, create a wet layer to work into, or simply as a clear ground to work on top of.
It is important to note that when the Gel Topcoats are mixed with other products their UV protection is reduced because the UVLS system, to be fully effective, needs to be topmost layer. Therefore fugitive materials mixed with the gel will not fully benefit from its ability to provide UV protection and may still degrade or fade over time.
While Gel Topcoats will provide substantial UV protection, as well as some chemical and water resistance, they are permanent non-removable coatings and any damage cannot be easily repaired. Also, being acrylic-based products, they are subject to dirt and dust accumulation, may become tacky in warmer temperatures, and their surfaces can be easily damaged during handling or shipping. A final reversible varnish such as GOLDEN Polymer Varnish, MSA Varnish, or Archival Spray Varnish is recommended for fine art paintings and prints if not displayed under glass.
- Product and Application Information:
- Just Paint Issue #18
- Schminke, Karin, Dorothy Simpson Krause, Bonny Pierce Lhotka, Digital Art Studio: Techniques for Combining Inkjet Printing with Traditional Art Materials, Watson-Guptill, 2004