Exceptional prototyping tool. Molding Procedure A. Machine master to correct dimensions - make in pieces using conventional machining techniques. Electrical performance of master can be checked. B. Fabricate the mold from PSI 16-270 silicone rubber using a vacuum molding technique. C. Fabricate polyurethane block using a spin technique.
Mold is reusable.
Beam sputtering of Cr and Au on PUR - Very good adhesion on top surfaces. Electroless Ni on PUR - Peeled easily. This should give better sidewall coverage. PUR - Reduced from 80 deg. Measured temperature rise of PUR - Max.