The next morning the mold is opened

[attachment file=”07-mold open.jpg”]

Urethane is next. This is a 30 shore Urethane from Smooth-On

[attachment file=”08-urethane.jpg”]

Black colorant is added, parts a and b are mixed, de-aired in a vacuum chamber and poured (very slowly) into the molds

[attachment file=”09-urethane pour.jpg”]

Next step: See if they fit.