Dicor is one of the many companies that produce the product. It is sold to RV manufacturers who then sell it to their customers.
Dealers do not apply this coating to roofs. It is up to the RV owner to add it. The material can last up to 30 years, according to EPDMcoatings.com.
If you use petroleum-based solvents, harsh abrasives or any cleaners made with citrus they can penetrate the membrane and dissolve the adhesive resulting in a bubbly roof.
The material is pliable and will stretch slightly with the temperature and weather. EPDM is used because it can handle all degrees of weather from a low of minus 62 degrees Fahrenheit to a high of 300 degrees.
EPDM is considered a new form of rubber polymer. It is used to make hoses, tires and roofing membranes.
