GOLDEN Phosphorescent Green is a water-based acrylic medium that
can be applied to various surfaces. The unique pigment used in
its formulation is characterized by its ability to absorb and
store natural and artificial light. When the light source is removed
(i.e.: when the lights are turned off or the painted object is
taken into a dark area), a bright, greenish glow is emitted for
up to 15 minutes. The glow steadily diminishes as the stored light
energy is released.
GOLDEN Phosphorescent Green can be brush-applied in the
same manner as other acrylic paints. However, there are certain
guidelines the artist must follow to maximize the intensity and
duration of the glow. The glow time is directly related to the
thickness of the applied medium, as well as the intensity, quality
and time of exposure to the light source.
Thin coats of Phosphorescent
Medium will not produce a long-lasting, glowing effect. In order
to maximize the effect, apply several layers of the medium until
maximum opacity1 is achieved.
To test the effectiveness of each
coating, and to later test which available light source works
best, make a test panel where layers of the medium are built up.
- Begin by applying an even coating to a piece of illustration
board or other suitable substrate. Allow to dry.
- Leave a section (1/10th of overall board) with just one coat,
and apply the next coat. Allow to dry.
- Repeat this step until several coats of at least 5 different
thicknesses are built up to produce an opaque coating. Allow
each layer to fully dry before proceeding. The end result should
look like "steps" being built up as each layer is
This test panel will show how
many coats are needed to give the maximum glow. The light source
is equally important for maximum glow.
Natural and artificial
light sources can be used to "charge" GOLDEN Phosphorescent
Green. Light sources rich in Ultraviolet (UV) are most effective.
Tungsten and Fluorescent lights will work, but some sources can
take longer than others depending on their intensity (wattage).
The fastest charge can result from a good Ultraviolet Light, commonly
referred to as a "black light". The black light will
also allow a bright glow to remain constant if left on during
viewing. Infrared lights will not charge this product.
Use the test board with the different
layers of medium to check which source will work the best for
each use. Experiment with different types of light and their proximity
to the Phosphorescent Green.
Blending with Other Acrylic
Green is not a true blending medium like GOLDEN Polymer Medium.
Mixing with acrylic paints will substantially diminish the glowing
capability of the product. If color is absolutely essential, the
Fluorescent Paints diminish the glow the least. They must still
be added very sparingly.
Any paints applied over the medium
will also inhibit the glow. Even a transparent glaze will interrupt
the charging capability of the medium.
Phosphorescent Green can be blended
with any of the GOLDEN Gloss Gels or Mediums. Experimenting with
different ratios of gel and Phosphorescent Green will produce
different appearances. Blending the medium with GOLDEN Gels that
are thick, such as Heavy Gel or High Solid Gel, will allow a much
thicker, one-coat application.
- GOLDEN Phosphorescent Green is not Lightfast2,
meaning that the more exposure to light it receives, the faster
it fades. If an object begins to lose the ability to charge,
additional coats may be applied at a later date.
- Black lights put near the object can keep the glow appearance
more constant. Experiment with intensity of light and distance
of UV light to the object.
- An opaque, even coating can be used as a glowing "chalkboard"
with the aid of a flashlight. Messages can be "drawn"
and the duration depends on how fast or slow the flashlight
is moved across the film.
- To hide the Phosphorescent Green during normal viewing, apply
the medium over a base color that is similar in hue and value.
This will allow even heavy coatings to be undetectable during
normal lighting. Using this technique will allow for "hidden"
messages or graphics to be put into an artwork
1Opacity - the degree to which a material obscures
a substrate or underlying paint layers.
2Lightfast - ability to withstand color change
due to exposure to light.
above information is based on research and testing done by Golden
Artist Colors, Inc., and is provided as a basis for understanding
the potential uses of the products mentioned. Due to the numerous
variables in methods, materials and conditions of producing art,
Golden Artist Colors, Inc. cannot be sure the product will be
right for you. Therefore, we urge product users to test each application
to ensure all individual project requirements are met. While we
believe the above information is accurate, WE MAKE NO EXPRESS
OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, and we shall in no event be liable for any damages (indirect,
consequential, or otherwise) that may occur as a result of a product