Workshop.HealthSufficiency

Sulpho-Plastics

This plastic is particularly adaptable for making molds and light castings requiring tensile strength but very clear outline. It may also be used for making ornaments and novelties. However, as this is flammable, do not use for ashtrays.
While the name would convey the thought of plastic sulphur which is an unstable allotropic form of [...]

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Gutta-Pursha Molds:
Purchase a sheet of Gutta-Percha, about one-fourth of an inch thick. Cut it about size desired. Soak it in Naptha (which causes it to swell), then soak it in hot water. This makes the sheet of Gutta-Percha soft and mushy in appearance, somewhat like a wet rag. Then in this condition, press it against [...]

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This is new mold material is much superior to ordinary gelatine (mold glue) and is very easily made. It does not shrink or dry out like ordinary casting gelatins. If made according to directions it will retain all its original qualities indefinitely, and can be re-melted when necessary.
Formula:

Flake Gelatin . . . . . [...]

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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 [...]

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This is waterproof.
This is simply Airplane Dope.
You can obtain this from firms selling materials for making model airplanes.
If you are selling your products you can put this up in bottles and sell clear or you can add aluminum powder to make the cement look like solder.
Note: Be careful around fire with this.
Please share how you [...]

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Look around you. Almost everything you see is made of plastic. There are more than 16 formulas in our archives to help you make or repair almost any type of plastic product.
You can even turn plastic making items into a big money making hobby or home based business opportunity. Consider expressing your creative skills [...]

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Easy to make. Take any desired amount of wood flour or finely sifted sawdust. Add enough ordinary clear lacquer to make a thick putty like mass. This will keep for a long time if kept in a tightly closed container. It makes a fine durable material for mending and patching wood.
Purchase a can of plastic [...]

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Formula:
Geen 121……….100 ounces
Paraplex G-25……..50 ounces
Paraplex G-50……..50 ounces
Dythos (stabilizer)….3 ounces
BL-353 (blowing agent)..10 ounces
Sponge Density 7 lbs. per cu. ft. Expansion 1100%.
Procedure:
Heat the pastisol in the mold or on the desired substrate at 212 degrees F. until expansion is completed. When the GL-353 is used. The pigmented plastisol will show a yellow-green (the color of BL-353) [...]

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This is called Phenolic-Formaldehyde-Resin: All the materials for this formula can be purchased from any wholesale drug house.
Extreme Caution:
Should be taken when mixing this formula. You should only use a glass or stainless steel vessel, and perform the operation in a place where the fumes will dissipate. Either in open air or into a [...]

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The amount of ingredients used in these various formulas is considered to be correct. But you may have to do some experimenting on your own, to obtain the proper flow properties.
Formula 1:
Wood Flour…5 parts
Sodium Silicate….15 parts
Procedure:
Mix the wood flour and Sodium Silicate together. Add more water if necessary until a dough like mixture is formed [...]

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