I don't know why GE developed Glyptal, but I remember seeing it in the
Allied Radio catalog in the late 1950's for use as a paint-on insulation for
electrical connections and components. I think it was intended for similar
uses as the stuff you can buy at hardware stores today. But Glyptal was
certainly a high-perforamnce product as opposed to the consumer stuff you
can buy in the electrical department at Home Depot, etc. today. Back then
it was really expen$ive too - for a little bottle. Must be less expensive
today if people regularly coat entire insides of engines "just because".
I thought that racers had discovered its usefulness for race engines maybe
30 years ago, for smoothing out the inside of blocks to allow oil to flow
back to the pan (and thus the pump) faster.
But I dunno, really...
Karl
> The story on
> Gyptal as I was told is that it was originally developed by GE to be used
> seal the insides of castings that would hold oil. The idea is that it will
> tend to keep the crankcase cleaner, longer because the oil will tend to
> run
> down the sides of the slick surface and not congeal into the crud we have
> all cleaned off the inside of engines one time or another.
> It must have been around for quite awhile as I remember my dad using it
> when
> rebuilding antique cars when I was young.
>
> Dave Connitt
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