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Re: Alternatives to IPA to swell silicone lenses



I have a obvious suggestion (that has probably been evaluated but I'll
try anyway)--have they tried saline solution (you know, that stuff we
have in our eyes)?
Melinda Dower
Research Scientist 
N.J. Dept. of Environmental Protection
(609) 292-1122

>>> "Tammy Allen" <tallen@co.pinellas.fl.us> 07/22/03 11:23AM >>>
Here is a doosy.  I will really be impressed if someone can answer me
back on this one with an alternative...

A silicone lens manufacturer (lens implant for human cornea) currently
uses Isopropyl alcohol (IPA) to soak their lenses in so that the
silicone will swell to assist in QC efforts to evaluate lens quality. 
Does anyone know of another non-voc product that will have a similar
affect on silicone to aid in inspecting for imperfections,
contamination, etc.

Tammy L. Allen
Senior Environmental Specialist
Pollution Prevention and Resource Recovery Program
Pinellas County Environmental Management
512 S. Ft. Harrison Ave.
Clearwater, FL  33763

(727) 464-4761
Fax (727) 464-3174

e-mail: tallen@co.pinellas.fl.us 

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