Up to this point in my life, I've never made a two sided mold. I've made a lot of partial molds and one sided molds, mostly out of fiberglass. I've never worked with silicone rubber before either. Since I have a rather large set of weather seals, trim and mounting pieces to make for another project, I thought it would be a good idea to get ahead of that by reproducing an existing trim piece as a plug, make a silicone mold and then cast the trim piece using a two part urethane rubber. The Ferrari 360 Spider Wind Stops, which are little screened frames that sit behind the cockpit and block the wind from messing up the driver's and passenger's hair, have custom gaskets to hold in and stretch a fine mesh screen. If the gaskets are deteriorated, the typical solution is to buy the entire frame with the gasket and screen. The gaskets are unavailable through Ferrari or any aftermarket that I could find. I decided to try and change that. The steps involved in this project: P