[viejoronnie]

I just joined the forum to avail myself of Anthony’s info.

I have in the past followed the tire casting primer at the Old Weird Herald website.

I am working on a similar process to yours.

I will be using my  inexpensive flexible mold medium: a mixture of glycerine, powdered gelatin, and acrylic paint, poured over vintage OEM rubber tires affixed temporarily to the bottom of a 90 degree corner silicone bread baking pan. Once a master mold is created tires with only sided tire markings can be made.