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Old 01-31-2006, 12:07 PM
BarryK BarryK is offline
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The older flex agents did lose effectiveness over time.

If the flex agent uses "Polyglycidyl Ether Polymer"
(Excuse spelling as I don't have access where I'm at.)

This additive is a plasticizer and will remain flexible, only problem is its not required to be listed on MSDS or Label so how you will know, I don't know.
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