Apple Rubber designs and manufactures silicone parts and seals for variety of applications with fast prototypes available. They come in any color and density, for a wide temperature range of –94 to 400+F, and a durometer range of 10 to 80 Shore A.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.