While SMARTCOAT™ 400 series coatings are direct-bond optimized for excellent adhesion to most roofing substrates without primer, some changing surfaces such as Kynar metal and TPO may require 210 Universal Primer before coating, as determined by an adhesion test. #210 is a highly engineered, single-component, water-based primer. If needed or specified, #210 can be applied to TPO, Concrete, Galvalume, Galvanized Steel, Aluminum, and other common roofing substrates. Do not apply over silicone. In addition to improved adhesion of SMARTCOAT 400 series coatings, #210 imparts water-resistant qualities before these coatings are applied. SMARTCOAT roof restoration products numbers align with proper application sequence. • 100 Series: Clean • 200 Series: Prime/prepare surfaces only as needed • 300 Series: Seal • 400 Series: Coat Why tear off when you can restore? Restoring a roof and avoiding tear off labor can reduce project costs up to 40%. And since coatings are classifi...See Moreed as a maintenance, there are tax advantages for building owners as well. Plus, the energy-cost savings of a bright-white, reflective roof. Seamless. Sustainable. SMARTCOAT. Reach out to your local CertainTeed Territory Manager to request a sample of SMARTCOAT ™ 210 Universal Primer and training on the SMARTCOAT Liquid-Applied Roof Restoration system. See Less