Yes, plastic. Yes, I do know that muratic acid is strong stuff. I have used it in the pool and to remove some rust at times. ...have always used protection, in a well ventilated area.
I was just asking about them using it to clean plastic lenses. I didn't think that there would be any effect, as I didn't think that it reacted to/with plastic.
...and if I'm not mistaken, the guy was pouring it straight onto the lenses, in a stainless steel sink (rinsing it down the drain), and rubbing it with his hands. I didn't think that was too smart.
Mark
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