3 Ways to Melt Plastic wikiHow
Oct 10, 2019· Do a test by placing a small amount of acetone on the plastic you want to melt. If the acetone will melt your plastic, the melting will occur on contact. For instance, acetone works well to melt abs plastic, which is a hard plastic that has many common applications. Acetone also instantly melts Styro into a gummy, runny consistency.