Can't find "Easy-Off" here. I've just bought some "Mr. Muscle" oven cleaner, made by S C Johnson, and I will try that now.
I have tried various household solvents and cleaners. Nitromors paint stripper (MEK based) works really fast, but melts the plastic in a couple of minutes. Ammonia doesn't work at all. Isopropyl alcohol loosens the paint, but doesn't dissolve it. It comes off in small flakes. It is also too expensive to use as a paint stripper for a large kit.
Getting hold of "dangerous" chemicals is really difficult in Europe these days. You used to be able to buy isopropyl alcohol in any chemist shop (drug store), but now you can only get it in any quantity from a licensed supplier. Caustic soda and ammonia were readily available from supermarkets, but now you have to go to a chemist shop.
Seems strange to me that in the US you have warning labels on rear-view mirrors, microwave ovens and hot beverage containers, but you can still buy chemicals that the European Government has practically banned for consumers. Health and safety laws are very inconsistent.
Cheers