I got some Crown Royal Kirkrod a few years back just to try it out. But i haven't found anything i couldn't weld with my spoolgun so i never used it, until today. I took some 1 1/2" OD alum pipe cut lengthwise and vise gripped it back together with a small gap prob equal to the sawblade. Then i torch welded it with the RK rod and it welded great. I couldn't hand break the parts when i was done...Bob