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I am back and forth with this,for now its oatey #95 or Utility brand. Olny thing with utilty brand is it does not have a nfs-61 approval for potable water...neither have astm B-813,ergo thay are not water soluble. Water soluble is inferior flux and I wont use it. Though i must say some photos i have seen showed some bad dammage to copper by the flux causing pin hole leaks....never happened to me. I say some places must have water conditions that speed up erosion of flux/copper...further more i say always use L/k copper for water,not M. What do u think?
I like the Oatey 95 tinning flux. It works good and I like the consistency, doesn't get too goopy in the summer or too hard in the winter.
As for copper water line, due to a code change here in NY, M copper is approved for water lines. I don't use it though.
Alan (California Radiant) Forbes Member Posts: 3,615Flux
I've been using flux from Crest/Good:
and even though Mark Eatherton rails against it, I cut a hole in the top for my acid brush.
Copper tubing? Typle M I've never seen a reason to use type L; It's more expensive, takes longer to cut and has a reduced capacity.8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hourTwo btu/ per sq ft for degree difference for a slab0
Oatey #95 can raise the batting average of a sloppy mechanic. The guys who say things like "it's clean enough" and "The flux will flow to the other side when I heat it".0
yeah i hear ya,a lot of people dont know how to solder. Folow the tourch around the fitting..folow with the solder..young jeti0
SOS Odorless Greenless
but I`m a die-hard Kester guy. ;-)0
This discussion has been closed.
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