Create Plastic Mold

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.

Create plastic mold.

This can be done with a 3d print or a soft prototyping mold. The first thing you need to have for creating a plastic part is a mold. Thermoplastic comes in a wide variety of materials colors finishes and thickness. The mold is a female replica of your original part.

You may purchase a mold or create your own custom molds out of reusable molding materials silicone and or plaster. 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. The best part of rtv is it comes in the form of liquid until you add the required. Allow it to fill the mold.

I made an epoxy mold of an existing plastic item. Molding plastic is a fun inexpensive way to create unique pieces or replicas of your favorite items. Get the right mold material. Note that the original item must hav.

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. Silicone molds are favored by casters because they are easy to use and don t require much mold release. Pour the mixed liquid plastic into the mold at the lowest point. Mix liquid plastics in a well ventilated area to reduce the danger of fumes.

The best mold material to combat this kind of casting problem is silicone rtv or room temperature vulcanizing rubber. Home plastic injection molding with an epoxy mold. Silicone rtv rubber creates flexible tear resistant molds that are capable of producing fine detail and can withstand high temperatures. To create your own silicone rubber mold for plastic casting complete this 3 day process.

When that happens you have to make your own. Step 5 remove the plastic part from the mold once it has hardened and make as many more as you need. You need to create your mold with a material called rtv room temperature vulcanizing slicone rubber. While you can buy them in all sorts of shapes sizes and designs sometimes finding the perfect mold for a custom piece is impossible.