In Reply to: MSDS Data On Products We All Use posted by Tim Daley(MI) on September 30, 2013 at 16:12:37:
Here's the link to the company web site that makes the 303 Aerospace Protectant MSDS info. They don't list what it is made of, just simply stating ingredients are Proprietary. Multiple uses listed, one is for protecting synthetic and natural rubber from weather checking. Recommends applying every 5-6 weeks for maximum protection.