A freeze brand iron, I could way off base, I think is made out of a special material?
Hot/Fire brands can be made pretty easy. Hot branding blotches easier than freeze so the brand should be clean, for example, letters like "K" and "B" can blotch because of the concentration of heat in one area. I have never freeze branded but done a pile of hot brands on cattle. Steady, rocking pressure. The time is determined by how hot the iron is, when the smoke changes color you should be done.Freeze brands do show up on gray horses, should not be a concern.
I DON'T LEAD 'EM AND FEED 'EM, I RIDE 'EM AND SLIDE 'EM.
PLAYBOYS OKIE CODY "HOOEY" 10/21/2019