Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Hi,

A few questions regarding MG Chemical's Liquid Tin product:

1) I just purchased a bottle of Liquid Tin. In the bottom of the (unopened) bottle, there's a lot of white precipitate and a few black things. It doesn't mix in if I shake it. Is this normal or did I receive a defective product?

2) I understand that the tinning process is very stinky and produces toxic gases. Is it ok to use it outside, since my lab (a.k.a. garage) is not well ventilated? Does cold (down to 50 deg or so) or heat (up to 90 deg or so) affect its operation?

3) Can I re-use Liquid Tin by pouring it back into the original bottle? Or should it be discarded after one use?

4) How do I dispose of Liquid Tin in an eco-friendly manner?

5) Any hints on using Liquid Tin to ensure good conductivity and prevent copper corrosion?

Thanks,
Jim