The main idea of this shader is to imitate a silicone rubber material.
I made the range of primary and secondary colors plus black and white with this material, to have a base where to start and an idea of how it works.
So in the same scene you will get the eight colors of silicone rubber.
With semi-gloss finish and blurred reflections, it does not use any image file as textures because its uniform surface, but it uses a serie of ambient occlusion maps that conditions its specular, ambient and the diffusion channels, to better modeling its form when it is used in a more complex object.
The material has been created with Cinema 4D 13 prime, so no need to use 'Physical render', 'Advanced Render' or 'Global Illumination' to look perfect (although it works just as well if you're going to use it) in the same way as it does not use any special channel, external plugin, or exotic shader is fully compatible with version 12 of Cinema4D.
Please have a look at the notes about the scene, in the section 'project info'.