Mold Your Own Plastic

Molding is the process of manufacturing by shaping pliable raw material using a rigid frame or model called a pattern.

A mold or mould is a hollowed-out block that is filled with a liquid like plastic, glass, metal, or ceramic raw materials. The liquid hardens or sets inside the mold, adopting its shape. A mold is the opposite of a cast. A release agent is typically used to make removal of the hardened/set substance from the mold easier.

Particulate Materials
Big name for an easy process

While the PM industry tends to focus on this application in powdered metallurgy and powdered ceramics, this technology can also be applied to plastics.

It is well known that the integrity of chemically dissolved plastics is much weaker than virgin material, but just like the fusion of a powdered metal forms a better bond as opposed to pour molding, so does powdered plastic, resulting in stronger parts.

Many parts in gear reduction and combustion engines are now formed from particulate materials.

How can you use this to your home advantage?

For one, there is no chemical smell from the reactants, or the release of many toxins like the mercide compounds associated with heat meltingplastic for reforming.

For another, it would be fairly simple to implement a simple grinding mechanism to create plastic powders from basic recyclable products, to reform into your products.

Once powdered you would compact the product into your mold and heat to just under the plastics melting point making this process less toxic than even welding theplastic with a bonding agent or especially heat bonding.

Picture this: Recycling your own pop and water bottles? Broken toys? Old computer cases? Old electronics, such as alarm clocks and microwave doors? How about making a living by stripping down a wrecked car that you buy for a few hundred dollars. Lots of plastic parts in the new cars!

Kinda helps you to realize why I hated the cash for clunkers program so deeply huh?

What can you do with this new recycling stream? Form up sculptures, like the resin cast statues, to sell on Etsy or Ebay. Of course, polystyrene and the like aren’t very UV light friendly so I wouldn’t recommend any out door products unless you could buy the inhibitors.

For More: Be sure to check out my page at Squidoo with this full article!


About sirkeystone

This dude lives and slaves in the Siloam Springs Arkansas area, where his day job is a flooring installer. For now. An author, artist, guitar repair guy, and loves to play with cars. Not just HotWheels either. Guitar, Bass, and vocals for local False Hope band, an Indie/Country/Rock band that used to be a classic rock cover band.

Posted on December 26, 2009, in Outside work. Bookmark the permalink. 2 Comments.

  1. Plastic Mold often provide the sole interaction between your customers and the technology you provide to them. It is critical that your customers are satisfied with the tactile response of the machine interface.

  2. Thank you for your input. A service like yours would be recommended if any one were to mass produce anything they should want to sell. But my focus is on the hobby level.

    As for your comment: Definitely! The fit and finish of the final model should be of the highest priority.

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