Thurmalox 218 Primer/219 Topcoat Protective Coatings provide VOC-compliant, corrosion-resistant protection to metal surfaces under insulation exposed to high heat up to 450 F. Ideal for coating pipes, vessels, furnaces and other equipment in high-temperature service. Can be applied directly by brush, roller or spray methods to hot surface—no need to shut down equipment. Made of silicone that resists abrasion and continuous immersion in ambient, hot and/or boiling Dampney Co. Inc., Everett, Mass.. Available in 1- and 5-gal. kits.