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Original Message
RE: Metallized caps require significant break-in time...
Posted by Thermionic27609 on March 27, 2017 at 13:52:38:
I do believe in film capacitor break-in, and for more critical applications, I will put them across the AC mains for a couple of days.
A materials engineer working with polypropylene told me that he found it plausible that changes would occur at the boundary between foil and dielectric, especially with applied AC voltages.