Thanks fst. I finally found the Ultra Copper at Napa Auto Parts. Seems all the other parts houses around me carry the off brand sealants and thread lock compounds. I figured something comparable from another company would be ok but I went with exactly what Brock recommends to avoid any problems. He done the R&D to make this system work so I will follow his advice!that pimpalicious....where did you get that copper goo??....I'm gonna need some when I do my install this winter....