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Masonite

Back
of Panel

Hollow
core Panel

Twin Cartridge Particle Mask

Painting
Implements

Muffin tins & Griddle

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Chapter
Contents:
Painting surface:
Boards, mounted canvas, alternatives
Grounds: Gesso, Oil, Acrylic, gold leaf, flake white (Crementz
or lead white), and tinted grounds
Dry pigment: Sources, precautions
Making Encaustic paint: Pigment, Wax, and peculiarities
Tools and Equipment: Hot plate, heat guns, heat lamps, others
Safety: Hazardous materials, fire, others
The Medium: Wax, water-wax, oil-wax, commercial products
Drawing materials: WC and Oil crayon, carving and scraping tools
Varnishes: Wax and none
Presentation: Frame, edge, none
Alternatives and Future use: Giclee printmaking, simple means
Any discussion
of encaustic painting begins with the painting surface. Because
encaustic is not flexible at cooler temperatures, a rigid surface
is necessary. Masonite, sometimes called pressed board or hardboard
is a standard. Becoming more popular recently, is the hollow core
door. It offers rigidity and light weight as well as stability
- by comparison to the old wooden panels of more than 50 years
ago. I had a professor say that the old masters would abandon
all their linen, canvas and wooden panels for a good hollow core
door.
The
panel should have rounded edges to prevent or lessen the possibility
of chipping the encaustic paint layer. This can be accomplished
by sanding or shaping with a rasp. Finish sanding prepares the
surface to be sealed. There are commercial sealers, but an easy
solution is several coats of lacquer - thinned with 10 parts lacquer
thinner to one part lacquer. It soaks into the board and makes
it waterproof. An unsealed board can leach out color and chemicals
that can darken the painting over time. After sealing, a gesso
layer is added to stabilize the surface and make a sand-able surface
that can be prepared to receive paint. Gesso should be painted
on the back of the masonite to keep drying and shrinking gesso
from causing the surface to cup or dish. The back may be completely
covered or a simple X may be painted to simulate the tension applied
to the surface.
When
the desired surface is reached, the paint may be heated in muffin
tins or cupcake tins - one color and wax added to each cup. Practice
will show the correct proportion, but I begin with about 1 part
pigment to 4 parts bees wax by volume. The muffin tins are then
placed in a low pan with water in it and then on to a hot plate
or pancake griddle. It is best to add the pigment to the molten
wax. [For safety and to keep from breathing the toxic pigments,
wear a double canister mask while handling and mixing the pigment
into the molten wax.]
Light
colors are slow to become molten, dark are the quickest. You will
have to learn how these differences affect working with colors
together. Paint may be placed on the board by using: old stiff
painting brushes, painting knives, carving tools, wooden dowels,
sticks and spatulas. ,
The
board surface may also be heated on a hot plate, and the paint
layer worked by means of reheating with a heat gun, heat lamp
- or even by placing under a broiler in a oven for a few seconds.
A hair dryer that reaches high heat with little air may also be
used, but they tend to burn out with prolonged use.
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