Homebrew PCBs

javaguy11111 wrote:
> I am just going off the spec sheets for shelf life. I am not sure what
> happens as the resist starts getting old.  I am sure the resist does
> not instantly fail to work after a year, but it may become more
> difficult to work with. It may not expose as well or may not develop
> as easily.
> 
> I do not want to be selling something to people that may not perform
> as expected. That is why I do not plan to sell the resist after I have
> had it for a year.

Test it yourself every 6 months. Problem solved.