SpecMat Logsheet 11/8/06

John Shott shott at stanford.edu
Tue Nov 7 10:16:15 PST 2006

Ed et al:

I may have forgotten to raise the following question.

Harold Ackler from Binghamton Univ (back near Cornell, I think) used to 
use Protek from Brewer Scientific as an organic protective layer that 
stands up to long KOH etches.  Harold is interested in using this here 
... but it seemed to me that this was likely a material that would be of 
broader interest here and, if so, something that we should formalize.

The link to Protek at Brewer Science is:

The datasheet for Protek B1 (which is the version that Harold has used 
in part because it can be stripped in acetone, or NMP, or their own 
strippers.  I think that B1-18 and B1-25 are essentially the same except 
for viscosity.

Here is a presentation that describes typical use:


And attavched are the MSDSs from B1-18 and B1-25:

Does anyone have any experience with this material or 
questions/concerns.  It would certainly appear to provide useful 



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