[lit-ideas] Re: "Much brains", "many brains"

  • From: "Mike Geary" <atlas@xxxxxxxxxxxxx>
  • To: <lit-ideas@xxxxxxxxxxxxx>
  • Date: Sat, 18 Sep 2004 19:32:06 -0500

Paul Stone
> R-404a?

R-404a is a blend of R-125, R-143a and R-134a.  Depending on the
manufacturer, it is sold under the numbers 404A (Allied Signal), HP62
(Dupont) and FX-70 Elf Atochem.  It replaces R-502 and R-22 (in low
temperature applications).  It requires a Polyol Ester lubricant.  Which
means it's a pain in the ass.

Mike Geary
Freonics Unlimited.
Memphis

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