- Decide on the type of mold you want to use. ...
- Pour enough mold making compound to cover the object you want to mold into a plastic container. ...
- Immerse the object in the mold making compound and wait for it to set. ...
- Measure your mold. ...
- Mix your plastic. ...
- Pour the plastic into the mold.
Can you make your own plastic molds?
Molding plastic is a fun, inexpensive way to create unique pieces or replicas of your favorite items. You may purchase a mold or create your own custom molds out of reusable molding materials, silicone, and or plaster.