Artists are often
asking why our product is called Molding Paste while everyone
elses is called Modeling Paste, and is there any difference?
First, I have no idea why the product was called Molding Paste. It can
be placed in a mold, but it wasnt particularly developed for that
purpose. Molding Paste is what Sam Golden called a similar product at
Bocour and he simply carried the name forward to his new company. GOLDEN
Molding Paste is made similarly to other brands of acrylic modeling
pastes. Basically, they are all a medium of acrylic polymer that is
filled with hard solids.
Molding Pastes are
probably one of the more commonly used products when working with acrylics
or providing a base for other media. They can easily be worked with
a brush or pallete knife and readily mixed with acrylic colors. GOLDEN
Molding Paste is often used to build texture and depth before subsequent
application of additional colors. It is the auto body filler
of acrylic paints. Sam once actually used it for filling a gap in the
back fender of his beat-up station wagon. He said the stuff lasted for
products make up the range of GOLDEN Molding Pastes. They all have a
thick consistency derived from the high levels of added solids. For
Molding Paste and Hard Molding Paste, these solids include marble dust,
a large particle-size calcium carbonate. Calcium carbonate imparts significant
whitening and is also often used to create the tooth in acrylic gesso.
The solids in Light Molding Paste include hollow spheres which provide
even greater whitening. All of these products dry to a fairly opaque
white or light buff-gray. It is this opacity that makes them quite different
to work with than other mediums, especially when adding color.
The Molding Paste
Mix Color With It or Apply Color Over It.
GOLDEN Molding Pastes tend to tint colors that are added to them. This
can be overcome by adding a large amount of color, but in doing so,
many of the attributes for which the artist might have chosen the Molding
Pastes may be diluted. This tinting property is most noticeable when
mixing with reds. When adding a small amount of any red to any Molding
Paste, the resulting tint is always pink. This is not as great a problem
in the other hue ranges. It is quite possible to get a deep blue, green
or purple using Anthraquinone Blue, Phthalo Blue, Phthalo Green, or
Dioxazine Purple. It is also possible to get brilliant yellows, especially
when mixing with Cadmiums, because of their incredible opacity. If a
red is desired, the most promising route is with the Pyrrole Reds, because
they have the greatest tinting strength.
Molding Paste may
be applied as a separate layer and subsequently painted. The Molding
Pastes accept such application of color with great ease. They have excellent
tooth and great absorbency, which can be exploited with a wide range
of techniques. GOLDEN Molding Pastes are quite thick.
for Molding Pastes
When using these materials, it is important that the support be properly
prepared. A ground of gesso or size of thin acrylic medium should be
applied. Alternatively, the Molding Paste may be thinned with a fluid
acrylic medium or an acrylic/water mixture and applied as a ground.
This will assure good bonding with the support. If it is necessary to
use Molding Paste without thinning or prior sizing as a ground, it is
essential that the product be forcefully brushed or otherwise pressed
into the substrate. Like other acrylic paints and mediums, the Molding
Pastes will adhere best to absorbent surfaces like canvas or wood. They
will not adhere to greasy or oily surfaces. It is also best to roughen
up slick surfaces to increase the tooth, making the surface profile
rougher for additional bonding.
From Light to
3 Molding Pastes Provide Options for Artists
GOLDEN Light Molding Paste was originally developed for an artist who
needed to support sculpted canvas forms arising from the surface of
her paintings. Using normal Molding Paste to fill the large voids resulted
in incredibly heavy paintings. We were requested to make a material
that would have the support capability of Molding Paste, but at a reduced
weight. Even though the resulting product is only 1/3 the weight of
its heavier cousins, it will hold peaks that are much higher and more
detailed than either the Molding Paste or Hard Molding Paste. It has
a consistency between cake frosting and shaving cream and can be shaped
quite readily. As with the other Molding Pastes, shrinkage is minimal
due to its high solid load. Light Molding Paste dries to an extremely
flexible film, which can be rolled without cracking. It is also very
absorbent and works exceptionally well as a ground, to create stain
effects using thinned acrylic colors.
Paste dries a great deal harder than Light Molding Paste. It will
dramatically increase the stiffness of a flexible support and provides
a harder surface to work against. Unlike Molding Pastes from most other
manufacturers, it can be rolled without cracking. It dries to a light
gray finish and is not as opaque as the Light Molding Paste, so less
color is required to overcome its tinting ability. The surface of Molding
Paste has a fair degree of absorbency which will allow for the application
of stains of thinned down color. It also provides great adhesion for
subsequent coats of acrylic colors. Molding Paste will not hold high
peaks unless puddled in large quantities.
GOLDEN Hard Molding
Paste was developed for artists who wanted to sand down the acrylic
paints. Anyone who has ever put sandpaper to acrylic paint knows the
frustration of trying this. The paint film begins to heat and soften
because of the friction, quickly gumming up the sandpaper. Hard Molding
Paste can be used to modify acrylic colors, making them more readily
sanded. When used by itself, Hard Molding Paste can be sanded to an
incredibly smooth, almost glass-like surface. Among other things, this
allows an artist to prepare a variety of surfaces for drawing techniques.
it can be shaped with a knife, carving tools, electric sanding equipment
and drills. This allows for subtractive techniques when working with
the dried paint. Typical acrylics are much too flexible for carving
and tend to bind even the sharpest razor blades and knives. Hard Molding
Paste dries to a light gray color. It is quite absorbent like the Molding
Paste and will accept overpainting readily. However, it forms a more
brittle film and, unlike the other Molding Pastes, if this product is
applied to a flexible support, it should not be rolled. Cracking will
potentially develop if used on an unsupported flexible substrate. Hard
Molding Paste has self-leveling qualities not found in other Molding
Pastes. High peaks formed in application will settle out before it is
Care should be taken when using any of the GOLDEN Molding Paste products
without a protective final coat. Because of their absorbency, it is
quite possible that dirt, pollution or finger marks will leave stains.
It is best to consider using a sealing coat and a final varnish if these
materials are exposed on the surface of the painting. Also, as with
all acrylics, avoid rolling, hitting or banging them in cold weather,
as it is very possible to crack the cold acrylic film.
A final product to consider is a hybrid material called GOLDEN Extra
Heavy Gel/Molding Paste. This product was produced for an artist who
wanted the greater translucency that a gel offers as well as the ability
to build up higher, more accurate peaks. GOLDEN Extra Heavy Gel/Molding
Paste provides that bridge between a Gel Medium and a Molding Paste.
Although still drying to a light gray color, it allows the artist to
achieve greater depth of color than that achievable with the standard
So whether you mold with Molding Pastes or model with it, each one has
versatility and options worth exploring!
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