Protexior® Chemical Resistant Epoxy Top Coat & Primer Kit, combining Novolac epoxy protection integrated with silicone resin technology, protects insulated and un-insulated steel and concrete surfaces. Resistant to wet-dry thermal cycling, boiling water, and steam, this corrosion- and heat-resistant (up to 450°F), low-VOC coating meets ISO 20340 and ASTM B-117. Indoor/outdoor solution can be applied by roller or spray, and typical uses include piping, vessels, valves, ducts, and plenums.