I have tried clean slate no problems works on enamel paints as wellYou could also try bleach or Fairy Power Spray. Both seem to work OK.
You could also consider VMS Clean Slate. Specially made to strip acrylic paint. I've not tried it myself but VMS products are usually very good. John at the shop sells it.
Thanks I'm just going to order some nowI have tried clean slate no problems works on enamel paints as well
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