Posted by: lindabd Post Reply
So.. when testing a plastic with ammonia - or simichrome - one wants to test a clean but oxidized layer?
I did as you suggested and (though my ammonia is 20 years old I assume it is still going to act like ammonia) the result was not that satisfying amber stain. Perhaps then the pendants are indeed rubber from battery cases.
I've attached a photo with the test - and with the cleaned up pendant which looks a lot nicer now.
Thank you for your attention to this.
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