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I had ordered a jug of this stuff online to de-rust the inside of the tank on an '81 CM400. It's supposed to be safe for skin and for the environment, and I can vouch for the fact that it didn't damage paint or irritate my hands. I had it in for ~8 hours and it seemed to work pretty well. That's the only time I've used it, though, so I won't get too enthusiastic about its effectiveness until I've tried it on some other stuff. Anyone know any similar products? Anyway you can buy it in certain Home Depots now instead of shipping it.