GSSP, READ AND FOLLOW all directions that came w/the mold otherwise the warranty IS void. I have about 10 of them and the only thing I ever did was hose em good w/Brakcleen let dry and follow the directions then hose them (when cold) w/Amsoil MP. Best easiest casting molds made. Got an Elk w/mine in 260 gr LFN .338. Muddy
