Review on Handy Flux 7 Ounce Jar with Brush - The Ultimate Solution for Precise Soldering! SOL-950.01 by Shree Carmean

I tried to use this flux to make jewelry on copper tape and it didn't work for me. Of course I'm just starting out and may have made some mistakes, but when I switched to an injection needle flux it worked great. Maybe it needed to be mixed thoroughly with the brush that came with it? I did not do it. But the solder just stuck together and rolled off when I tried to use it. So, I'm giving two stars in the hope that it was just user error and I'm a dumbass. Much luck!