Is there a standard material library for Corona for C4D?

Maybe I am missing something, but is there a standard set of pre-built common materials (e.g., glass, metal, wood, plastic, etc…) for Corona for C4D that can be downloaded like there is a for 3ds max?

Not as yet but there is this free library.

I use the site listed above. Also, Poliigon.com has a plug in that will bring a material in and hook up all the maps in one click. It’s a subscription service.

I’ve created 3 pack of Shader for c4d, for those of interest
here :