Basically, wash the bottles, cut 'em into small manageable chunks and pop them in a metal container and into the oven at 350F. It should take a few minutes for the plastic to melt. But remember, melting plastics will produce fumes which can be harmful if inhaled. Make sure to melt them in a well ventilated area.

Can you melt plastic and remold it?

Take the plastic out of the oven.

Melted plastic can be put into a mold to shape it. You can use a pre-made heat resistant mold or make your own. If you want a particular shape, it may be best to make your own mold out of wood. Cooled plastic that has hardened can be cut and then sanded into whatever shape you like.

Does plastic melt easily?

Plastic melts when you heat it to a certain temperature. ... However, this depends on the type of plastic you use. Some plastics become soft when you heat them, while others become liquid when you heat them. Like steel, there are numerous plastics, each with different properties and melting points.