MOLD BUILDER - LIQUID LATEX RUBBER
Mold builder - liquid latex rubber for making your own molds large and small. A smooth-flowing
liquid latex that you can brush over models to create flexible molds that will
produce many plaster castings. Just brush on several thin air-drying coats of
Mold Builder and
peel off a ready to use rubber mold. Mold Builder reproduces fine details, has
good elongation and stretch. High solid content produces quick build-up. Simple
water clean-up. General instructions for making molds and shells is furnished
with each can. For complete instructions see our book “How to Make Latex Molds.
Mold Builder latex rubber is a one-component
system that requires no mixing, it is ready to use right out of
the container. Our latex rubber is relatively inexpensive, compared to
other mold making products. It is an elastic mold rubber
and molds are generally thin-walled, strong and exhibit good abrasion
resistance. Because of its high elasticity, a feature unique to latex rubber, it
ability to be removed from a model like a glove. A latex mold will retain its
shape after being repeatedly rolled up and away (and turned inside out) from an
original model or casting – like a glove. Because of this feature and its
resistance to abrasion, latex is commonly used for making “glove molds” in the
reproduction of ornamental concrete (lawn ornaments and statuary). Latex molds
are also good for casting wax and gypsum.
Now you can duplicate figurines, sculptures
and other items with safe, brushable latex rubber. Mold Builder will not
stick to metal, clay, ceramics, plaster, wood or plasticene clay. Mold
Builder molds are durable, reusable, and economical to make. The molds you
make from Mold Builder can be used to make seconadrty molds of lifecastings,
cast paper, plaster, candle wax, craft soap and casting resins.
Quick drying, fast build up, economical to
use, peels easily form the model, flexible and stretchable, harmless to most
surfaces and requires no mold release makes Delvie's Plastics Mold Builder the
|Pint Can Mold Builder
|Quart Can Mold Buklder
|Gallon Can Mold Builder
|Case of 4 - 1 Gallon Cans Mold Builder
to make your own rubber mold using our Mold Builder - Liquid Latex Rubber
Although our Mold Builder, liquid latex rubber, is
harmless to most surfaces, always test an inconspicuous area first prior to
applying over the entire surface. Next, some models have holes or “tunnels”
that extend completely through the piece. Here, the hole under the puppy’s
stomach, has been completely filled with children’s modeling clay. Clay has
also been formed around the edge of the base, filling the gap between model
To apply, simply brush the liquid over the surface of the
model, then around the base to create a flange. Allow the Mold Builder to
air dry or use a hair drier on a warm setting to speed up the drying.
Important: the first two coats must be applied as thin as possible. Remove
all thick pockets which if left will seal over and not dry out. Once the
surface has dried (translucent appearance) you can apply another coat. Allow
the combined layers to gradually achieve proper thickness. Example: A 6”
life-like figurine requires approximately ten coats. For added firmness and
support, apply a layer of cheese cloth or bandage gauze between your last
When your mold is dry, dust it lightly with talc powder,
then peel it off of the model. Dust the inside of the mold with talc powder
to keep the fresh latex from sticking to itself. Support the mold in a
cardboard box (as shown) and pour in the liquid casting material of your
our Mold Builder - Liquid Latex Rubber to make a Flat Mold
You can make the flat (“blanket” mold as pictured) just
as easily as the “glove” type. The model (usually a “plaque-like” piece or
wall sculpture) is attached to a base, using small dabs of plasticene clay.
Again, use plasticene clay to fill the gap around the edge, giving a good,
clean edge to the resulting mold.
Apply enough Mold Builder to give a thick “blanket” of
latex (as shown in this cross section). The latex is allowed to dry ‘and is
trimmed flush with the base.
Retaining sides are added to contain plaster. These sides
can be of any rigid material that will hold the plaster as it sets. With a
brush apply a light solution of liquid soap and water over the latex
“blanket” mold and allow to dry. This soap solution when dry will act as a
mold release allowing the pieces to be separated later. Next pour plaster
over the rubber blanket to form a supportive base for the flexible latex
Mold Builder. Mother support mold option is to pour sand or kitty litter
into a shallow box. Leaving the original piece in your mold, press the mold
into the sand or kitty litter to create an impression. Once the impression
is made, carefully remove your mold. Pull original from mold, then place
mold back into sand or kitty litter.
When the plaster “support” mold has set up, the sides are
removed. The plaster is lifted off, and then the latex mold is peeled from
the model. Replace the latex mold into the “support” mold, and pour in the
casting material of your choice.
|Do’s & Don’ts:
- Use only dry warm air for drying and curing Mold Builder.
- Do not use petroleum based mold release agents. Petroleum release
agents will react with the latex mold and destroy it.
- Clean up Mold Builder with cold soapy water only. Do not use warm
water which will cause the Mold Builder to set up immediately!
- A few minutes prior to using Mold Builder, remove the lid and allow
the accumulated ammonia to dissipate.
- To remove from clothing, clean with dry cleaning solution.