Dealing whit the Voltage Breakdown Capacitor (i preffer this designation) we are dealing whit: Electron Extraction, we are litterly pulling the electrones out of the water - i´m sure there is a term for this? and i´m sure that em is involved?
Now, here´s another question:
The Delrin acts as an voltage inhibiter/barrier to a surten point. And when the voltage in the katode reach a critical point we get a discharge (maximum load point). Is this not a pulsing method on it´s own? The charging time is fixed depending on how fast you´r adding the voltage .. right?
If this is true, the only reason why you need to pulse the voltage is the time the water needs to fill the space between the electrodes ...
I think i actyally need to read more of the document´s i have, try to consentrate on this, taking a break from the electrolyser!!

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Polyoxymethylene plastic
IF the only true thing whit delrin is it´s property as an resistance, why not look at that? i cant finde any info on it´s electrical propaty (resistance) and i think a formal letter to DuPont is necessary.