There is a fundamental problem with conventional epoxy cements for
metals, namely, a huge difference in coefficient of thermal expansion.
By using copper powder as a filler. the situation is somewhat
improved, but such a bond in a hot water system would be subjected to
hundreds of cooling-heating cycles each of which will stress the
joint. It therefore makes sense to use adhesives where they can be
monitored and where an inadvertant leak will not cause a
major ,problem. Also, the integrity of the bond is even more dependent
on clean surfaces than soldering. As always, let the process and the
materials be dictated by the needed results. HTH
replying to PE, Babydollbolt wrote:
After going thru 30 loaves of all kinds of bread, without success, I decided ti
try Just for Copper. More then ten years later still no leaks! This repair
involved multiple joints, including shut off valves.. I have been told by
numerous people about the bread trick, but they all have one thing in
common-none of them have ever tried it themselves. THE BREAD TRICK DOES NOT
On 7/20/2017 5:20 PM, firstname.lastname@example.org wrote:
I was fortunate that 45 years ago i was taught by a couple of guys that
did joints all day long the right way. This was a department that built
copper tubed radiators/coils with thousands of joints a day. I just
trust solder to last forever if done properly. Adhesives have improved
but I wonder if there is a time that they may become brittle.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.