a question about etching solutions...

[mike deibert]

I purchased two bottles of ferric Chloride from Radio Shack about a year and a half ago. They were diluted with water and are kept in PVC tubes at the ready. I have only etched a few blades with them but for some reason the solution doesn't seem to etch anymore. Is there a shelf life to this stuff? Is there a way to bring the solution back to life?

Thanks,
Mike

 

[Don Hanson III]

Like Dan said in your other thread, you got to mix it with water.

Wrong forum, this question should be asked in the maker's section.

 

[mike deibert]

sorry about posting twice. I though the first one didn't go for some reason.