I used to have a large metal parts washer bin but there is no space in the garage of my current house. I bought a little plastic one from Harbor Freight that can sit on the workbench and store away when not in use. The instructions say water-based solvent only but I figured that was hogwash. However, when looking at the documents for the good stuff from companies like Gunk, they say don't allow to come in contact with plastic. The water based solvents are crap. What are the dangers of putting good solvent in a plastic washer bin?