Create Plastic Mold

Molding plastic is a fun inexpensive way to create unique pieces or replicas of your favorite items.

Create plastic mold.

While you can buy them in all sorts of shapes sizes and designs sometimes finding the perfect mold for a custom piece is impossible. Step 5 remove the plastic part from the mold once it has hardened and make as many more as you need. Cast your mold with plastic resin wait for it to cure and then remove the mold to reveal your creation. To create your own silicone rubber mold for plastic casting complete this 3 day process.

The first thing you need to have for creating a plastic part is a mold. Then i was able to make copies of that item using a home plastic injection molding machine this process should work for many different types of items or models. Note that the original item must hav. Thermoplastic comes in a wide variety of materials colors finishes and thickness.

Most plastic manufacturers create the design in the computer through a 3d imagery or animation software and eventually create a physical 3d model made out of abs plastic. You need to create your mold with a material called rtv room temperature vulcanizing slicone rubber. Silicone molds are favored by casters because they are easy to use and don t require much mold release. I made an epoxy mold of an existing plastic item.

This can be done with a 3d print or a soft prototyping mold. The best part of rtv is it comes in the form of liquid until you add the required. Allow it to fill the mold. Mix liquid plastics in a well ventilated area to reduce the danger of fumes.

Pour the mixed liquid plastic into the mold at the lowest point. When that happens you have to make your own. Silicone rtv rubber creates flexible tear resistant molds that are capable of producing fine detail and can withstand high temperatures. You may purchase a mold or create your own custom molds out of reusable molding materials silicone and or plaster.

Get the right mold material. Based on the part that was molded estimate or measure the amount of plastic resin needed to be mixed here is a 1 1 mix ratio resin. Home plastic injection molding with an epoxy mold. The best mold material to combat this kind of casting problem is silicone rtv or room temperature vulcanizing rubber.