Cortec Corp. (St. Paul, Minnesota, USA) is a proud supplier of vapor-phase corrosion inhibitors (VpCIs) for Vapor Pipe Shield, a patented corrosion protection system from General Air Products. Released in 2023, Vapor Pipe Shield is UL listed for use in dry and pre-action fire sprinkler systems and is steadily gaining acceptance. New test results show the clear advantages of Vapor Pipe Shield, promising to further reshape the industry’s approach to corrosion protection in fire sprinkler systems. To compare the effectiveness of Cortec VpCI (used in Vapor Pipe Shield) against compressed air (simulating untreated systems) and 98% nitrogen, General Air Products commissioned Corrosion Testing Laboratories, Inc. to conduct five years of testing on the subject. The first year of test data was released in December 2024, indicating that VpCI protection was up to seven times more effective on carbon steel coupons partially submerged in water than the protection of 98% nitrogen....

You do not currently have access to this content.