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Recent content by rttrembl

  1. rttrembl

    Polyurethane and R134a

    Does anyone know if R134a is compatible with Polyurethane tubing? I know Polyurethane is compatible with R12(a direct replacement for r12 is r134a) so my instinct would say yes but I am not entirely sure. Can anyone confirm this?
  2. rttrembl

    Nitrided Steel soluble in Acetic Acid?

    Hello, I am wondering if acetic acid will affect nitrided steel in anyway? If acetic acid does affect the nitriding, are there any solvents that will dissolve copper, but not affect the nitrided steel? Ryan Tremblay (Waterloo Engineer) rttrembl@engmail.uwaterloo.ca
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