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Forums - Modelling / Painting |
The painting forum is for the discussion of techniques on the painting, decalling and weathering phases of AFV modelling and the tools and materials used. |
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| Messages | 7062 |
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| Subject: | Re: Warrior periscopes |  |
| Date: | Oct 22, 2002 |
| From: | Cuski | |
Found it!!!!
Lucky, it wasn't even an article, it was a reader's letter, hidden somewhere
in the magazines.....
Anyways, I'm gonna attach the whole thing here... If you try it, please let
us know how it works:
"Pearly reflections.
Most modern armored fighting vehicles rely on high-tech optics to find the
enemy, day or night. In scale armor, these optics can be either clear
plastic window parts or opaque, molded-in periscope windows (around a hatch,
for example). These modern optics usually have a variety of reflective
coatings on them which appear from certain angles to be blue or purple.
This phenomena of the reflective coatings changing their tint depending on
the angle of light is known as interference coloring. This effect is now
achievable in scale models using a clear base, such as Future acrylic floor
polish, and a relatively new product called Pearl-Ex Mica Pigments. These
pigments are actually an exceptionally finely-ground powder that, when mixed
with either paint or a clear base, will give a mild tint.
The color I have experimented with is No. 673, Interference Violet. When
mixed about one part to 10 parts Future, the result is a shimmery, lightly
violet tinted clear liquid. When brushed on the back of clear optic parts
and allowed to dry, the effect is nearly identical to the reflective
coatings seen in real optics.
Since the Pearl-Ex is an actual interference pigment, it really does change
appearance based on lighting an viewing angle, just like the real thing. For
molded-in periscope parts, the Pearl-Ex pigments can be mixed directly into
a gloss paint, such as gloss black or dark blue. This will tint the paint
slightly violet but also give it that "reflective coating" interference
sheen. Pearl-Ex also has "Duo" colors, which as the name implies, are either
one or another color depending on viewing angle; these may be useful for
certain specific optics applications.
The complete color chart for the Pearl-Ex pigments can be found at:
http://www.jacquardproducts.com/productpages/colorsheets/pearlxclrsheet.htm.
These pigments are available at most major arts and crafts stores, or
numerous on-line retailers. [Mark Wilson]".
Cuski |
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