Guys, I always have plenty of mold making supplies on hand. The only item I don't have is urethane rubber. I have been thinking of making some urethane tires, but I need some info. I can make a mold with silicone, right? I can then pour urethane in and it will cure and de-mold with no problems? does it need mold release or 2 part mold release painted on the tire molds?
Is it just as simple as making the silicone mold and then pouring urethane in that mold with no other steps needed?
What urethane works best? I buy alumilite at HL now, but used Smoothon exclusively until then. I see their Vytaflex seems to be suitable for tires. What is the cure time of urethane?
any info appreciated