I am looking for a drifilm resist stripper that does not contain materials
such as monoethanol amine (MEA) or Choline (trimethylammium hydroxide) in
order to meet a commitment for Zero Discharge.  These materials pass right
through my UF, RO and UV so cannot use the water again for plating recharge.

Have head various stories of success with the caustic systems as far as
stripping efficiency, loading, will not strip or wrecks the tin-lead plating.
 If you have had any successes, I would like to hear from you.  I am
presently stripping DuPont 9420 from internals and Hercules CF from outers
that are pattern plated with tin-lead.

Any help would be appreciated.

Phil Hinton 
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