[Histonet] carbowax

[Erin Wrona]

Hi all,
   
  Our lab director wants us to try using carbowax polyethylene glycol as an embedding medium because it has a slightly higher melting point than our paraffin. I have never used it other than in formulations for frozen sections, in which case it is water soluble.  One of the other techs here thinks that it is always water soluble.  Does anyone know for sure?
   
  The specifics are:  ems product #19770, PEG 8000 flakes, melting point 60-63 degrees.  
   
  Thanks in advance,
  Erin Wrona
  San Francisco, CA