Six Simple Plastics Formulas


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Six Simple Plastics Formulas

 

SIMPLIFIED PLASTICS

This is the age of plastics! One of the most amazing developments in
this age of wonders . . . NEW developments and discoveries are constantly
being made in the plastic field. Here is a truly rich field for
experimentation. There are big opportunities in this field.

The history of Plastics dates back to about sixty years after the
signing of the Declaration of Independence. About that time two chemists, Leibig
and Wehier, first succeeded in combining certain elements to form UREA, thus
creating a synthetic substance from inorganic materials.

In 1868 John Wesley Hyatt, in his search for a substitute for making
billiard balls, created a substance which became known as CELLULOID. This was
the first real plastic and marked the beginning of the plastic industry in
the United States.

Years later, Dr. Leo Backeland, developed a new material,
non-inflammable, and one that could be moulded into strong products. This
PHENOL-FORMALDEHYDE product became known as BAKELITE. These Phenolics are
among the most widely used of all resin plastics.

They may be cast into fine costume jewelry, or moulded into large gears
and other industrial machinery. Resins may be purchased form producers in
liquid, granular, or powder form, and performs for whatever type of work the
moulder desires.

Plastic compounds are heavily covered by patents and many are beyond
the means for the small manufacturer to produce. There are, however, numerous
plastic compounds that may be produced from common everyday substances
without expensive equipment and which can be profitable to be used for making
novelties of all kinds.

While some may challenge the term plastics for some of these compounds
- the following formulas, nevertheless, will give the home manufacturer the
opportunity of creating plastic like substances from materials which are
generally obtained quickly and easily.

It is to be understood that although the amount of ingredients used in
these various formulas is considered to be correct, it is often necessary for
the moulder to use his own judgement and do some experimenting upon his own.
For instance: In Formula 1 - the resultant factor may be that five parts of
Wood Flour may not become sufficiently knead able with fifteen parts of
Sodium Silicate.

Room temperatures may be lower in some cases and therefore an addition
of more Sodium Silicate has to be added to obtain the proper flow properties.

FORMULA 1:

Wood Flour . . . . . . . . . . . . . 5 parts
Water Glass (Sodium Silicate) . . . . 15 parts

Mix the Wood Flour and Sodium Silicate together. Add more water if
necessary until a dough like mixture is formed by kneading with the hands.
This material may be moulded into hard objects by pressure. Colours may be
added while kneading. Use aniline dyes or dry colours. This material is
suited for plaques, book-ends, statues, etc.

FORMULA 2:

A. Dissolve 20 parts of flake glue in water or a double boiler. Add the
dissolved glue to 90 parts of gelatine.

B. To 50 parts of finely screened sawdust (or wood flour) add 300 parts
of powdered Chalk.

PROCESS:
Mix A and B together to make a heavy batter. This is done in enough warm
water to "loosen the material". Add dry colours (obtainable at
paint dealers) and mould under pressure.

FORMULA 3

A. To about 100 parts of ZINC OXIDE add 4 parts of SILICIC ACID.
B. To 2 parts of POWDERED BORAX add 2 1/2 parts of POWDERED GLASS.

PROCESS:
Mix A and B together well. Grind until fine and then bring it into solution
by adding a concentrated ZINC OXIDE solution.

This is an ideal material for small objects but it must be worked fast
because of its rapid drying qualities. Colour in usual manner. It may be
pressed with regular hand press or in a drill press.

FORMULA 4:

Dissolve one pound of flake or powdered glue in water by boiling. Shred
enough tissue paper into the solution to give body and then stir until a
thick batter results. Add one cup of LINSEED OIL into the solution and one
cup of POWDERED CHALK. Stir well and then remove this mass from the double
boiler and when cool enough, knead with the hands and press into moulds.

A pair of old gloves, slightly oiled with pure light oil may be used to
protect the hands when kneading these materials.

It takes a few days for this material to thoroughly harden but at the
end of that time, it should be as hard as stone and resembles carved wood. It
will make excellent art goods such as book ends, tie racks, coat hangers,
statues, etc.

FORMULA 5

To 11 parts of EPSOM SALTS, add 36 parts of FRESHLY CALCINED MAGNESITE.
Mix well and then add 2 1/2 parts of LEAD ACETATE. Mix all of the above
THOROUGHLY.

Then add just enough water to hold the material together and mould
under pressure. Many outdoor decorations may be made form this material such
as small ducks, birds and other garden ornaments. Objects may be painted
after moulding.

FORMULA 6

To 12 parts of PITCH add 6 parts ROSIN. To this mixture add a mixture
of 1/2 part of CASTOR OIL and 1/4 part WAX. Powder this mixture by using a
tamper and melt at 250 to 260 degrees F. Press while hot into cold die.

Many useful articles may be made form this material.





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