Dupont Corian Corian And Zodiaq Quartz Surfaces Dupont.  ISSFA and DuPont Surfaces represent many great minds working together. DuPont Surfaces established the solid surfaces category with the introduction of Corian® over 35 years ago. From the beginning, we’ve worked with our network of certified fabricators to build the industry and ensure its success. As a Principle Partner of the ISSFA organization and the leader in solid surfaces, Corian® continues to create new opportunities and help you grow your business. Now, DuPont Surfaces takes countertops to new heights with Zodiaq® quartz surfaces. It’s another way that our certified fabricators help us build on our success and bring a superior product to market. For more information, call 1-800-426-7426