
I have the same thermoset putty but under a different label and had never heard of it until reading a review of a different putty. The putty will change faster if exposed to a higher temperature before attempting to manipulate it with your hands. a few minutes. As you can see from the photos, each color has undergone noticeable changes, with green being the least dramatic. There are two shades of purple that turn either blue or pink. So if you have two, it may not be the same putty. after all. Try warming them up at a slightly higher temperature (common sense here - let them cool first!) before trying to achieve a manual color change and see if that makes a difference. This worked for me. Now they change color very quickly just from the heat of my hands. They are very thick and feel slightly slippery but not sticky at all. I notice an "oily" feel, but no real oil or grease. These are some of my favorite putties to play with and once the thermoset is set up you will be happy with the results. I was.

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