For many years I have successfully used a product from Morton called SMR-200 that removes the mask in 2 hours without attacking the exposed laminate.
  

R Sedlak <[log in to unmask]> wrote:
  Tim:
There are chemicals to achieve what you want, but you really do not want to use them, as they are SLOW.... figure 12-24 hours!

Rudy Sedlak

Tim Mack wrote: All,



I have run into an issue with a board that has solder mask covering some
pads. Is there a product/solvent that can remove the solder mask easily
with out etching the copper? I would rather chemically remove it than
manually scrap it off with a razor blade.



Thanks in advance,



Tim Mack

Research Engineer

NDSU CNSE

www.ndsu.edu/cnse




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