When I purchase a product I read the label and take precautions based on past experience. Obviously not the best way to treat you body. So much that penetrates the skin and can do damage now and in the future. Needless to say, I haven't taken a lot of steps in the past to protect myself from all the chemicals we use. I've also gotten sick after using them. (Once I was using a fiberglass cleaner and was dizzy for a few hours.)

Obviously I was a bit glib in the 'It's only Oxalic Acid' as there are other chemicals in higher quantities that are caustic on their own.

I've never researched MSDS sheets in the past. I tried this time for On & Off but gave up after 15 minutes. What's the best website for MSDS Sheets?