- Joined
- Mar 25, 2013
- Messages
- 4,617
I have a piece of black plastic that I have labeled as ABS. It machines a lot like polypropylene and I suspect a mix up. How can I tell these materials apart? I plan to glue it to another piece of ABS so that will fail if it is polypropylene. Is there a burning test? Solvent test?
Robert
Robert