Being an impatient sort, waiting for the thinner to work wouldn't replace my using channel locks I recently picked up a jaw type opener at HL in the checkout lane that has a rubber gripper area and fits Modelmaster and Tamiya bottles, but not the little Testors. I use this new rubber one to hold the jar while using the channel locks on the lid. At least now I won't wreck the labels. I'm going to try the press and seal method and see how that works now.