Harris Solder Kit SB861 & SCPF4 - Stay-Brite #8 Silver Bearing Solder with Flux

confirm here that this product is better than brazing! Holding pressure on copper fittings with 700PSig easily. No leaks no issues. Brazing weakens copper, staybrite wont.

Ok

Expensive but well worth it. Flows like water. Used on new R410 A/C install. Use flux sparingly and copper must be clean. Should be sold in smaller quantities.

THis is a great combination. The Solder flows really nicely - heat it gently, and dont get the flux too hot. It works great with a Propane torch, just take your time. I really like this. I use Hard solder and MAPP Gas for material that will stand a Glowing Red heat, but this stuff works great at temperatures just a bit higher than lead solder.

I was skeptical that a solder could be strong enough to hold up to 300+psi of r410a, but heard good things so I gave it a try. Ive used it on several residential AC installs and it has been flawless, less leaks than brazing and wayyyy faster than brazing. You have to use Emory cloth and/or wire brush to clean the fitting very well and use less flux than you normally would with plumbing solder, just make sure to use flux on the male fitting at least. It has been a complete game changer. Instead of hauling around a heavy ass welding rig, I can just carry a 5 pound map gas torch and get it all done fast! I will be sticking with this if all proves leak free in the long term.

Im a beginner and was able to install a TXV valve on my R12 AC unit no sweat (pun intended).

The solder melts as expected and the flux flows.

Very easy to use! Much safer, faster, easier, and cleaner than brazing! Hands down the BEST silver solder on the market!

If you’ve ever soldered copper, this is the way to go.

Having never done hvac line sets before I thought I’d give it a go… this was so easy and saved me so much money compared to having a hvac tech come braze lines… it’s been 5 months since I used the silver soldier on my line sets and it’s holding strong.