Introduction: Plastic Molding With Grocery Bags
I hated seeing all these perfectly good plastic bags go to waste, so I decided I would figure out a way to reuse them. In this instructable I'll show you how to use old bags to mold plastic parts.
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Step 1: Gather Materials
All you need is:
A mold to cast
A large open space
Step 2: Preparation
Twist up a plastic bag and hold it with the pliers
Light the bag on fire
WARNING! DO THIS IN AN OPEN SPACE AWAY FROM FLAMMABLE MATERIALS AND PLENTY OF VENTILATION! I AM NOT RESPONSIBLE IF YOU GET HURT!
Step 3: Molding
After a few second molten drops of plastic will drip off of the end. Let these drip over your mold. Continue until the mold is full. It may take more than one bag. Let the plastic and the mold cool for at least five minutes
Step 4: Done!
Thats it! After it has cooled take it out of your mold. You might want to use a knife or a torch to smooth out some of the edges.
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Discover Green Science Fair for a Better Planet