Safely remove old paint from plastic.

[Lynn]

Soaked it for a week in a pvc tube filled with Purple Power.

Good news: didn't harm the plastic.
Bad news: didn't harm the paint, other than making it maybe 10% softer. Still won't come off easily, other than where the paint is really really thin.

Any chance the Castrol Super Clean is stronger?
Hate to start using really strong stuff without knowing whether it may harm the plastic. Pretty sure I won't find another one of these cheap.