Solder vs. epoxy for copper pipes?

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
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Related Threads 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.