Thanks Dennis. This may seem like a silly question, but I have learned the hard way to never assume anything - do you feel that resin bodies would be safe in the cleaner if heat is not used? Given the cost of most resin kits, one would want to be very careful
I used mine with the heat off. I believe the warping is due to the ultrasonic cleaning action of the unit and the resin itself.
Any resin that needs to be stripped of paint I will put it it in the "Purple Pond" from now on.