St. wrote:

>    Erm, no, but while you're doing this experiment, tell me what the backup 
> tape is made of.

Wikipedia suggests it might be Mylar (i.e., polyethylene terephthalate). 
I still don't know how to make it disolve though. So far we've tried:

- Acetone
- Hexane
- Butyle acetate

We don't have any other really cheap solvents in our lab...

Oh well, I guess I could try using mineral acid to disolve the iron 
coating. :-S

Post a reply to this message