I don't want to start any kind of pissing war with any of my fellow members here. I know for a fact that MEK will melt most plastics, but it's very toxic. It accumulates in your internal organs for life. I spent 25 years in Everett, WA at the largest manufacturing building in the world( I'll let you guess the company), and the EPA monitored us with microscopic intensity. We were forced to switch from MEK, to MPK to meet clean air regulations. It is very versatile stuff for us garage guys, just be careful with it and use proper ventilation and hazmat procedures. Please wear a mask if possible. Paul.