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NewsHVAC Breaking News

Boiler Corrosion-Protection Products Earn G7 Certifications

By The ACHR NEWS Editorial Staff
boiler.jpg

BOILER PROTECTION: Cortec Corp.’s Boiler Lizard and Boiler Egg corrosion-protection products have received G7 certifications with the NSF Nonfood Compounds Registration Program, meaning they can be used in and around food-processing areas in which the treated water or steam has no contact with food. (Courtesy of Cortec Corp.)

March 29, 2025

ST. PAUL, Minn. — Cortec Corp.’s Boiler Lizard and Boiler Egg corrosion-protection products have received G7 certifications with the NSF Nonfood Compounds Registration Program.

Under the G7 category, these corrosion inhibitors for boilers can be used in and around food-processing areas in which the treated water or steam has no contact with food. This unlocks opportunities for the food industry to access the benefits of easy corrosion protection during boiler layup and startup, a press release from Cortec said.

Boiler Lizard is designed to protect industrial boilers during dry layup. This package of vapor-phase corrosion inhibitors can be laid inside an empty boiler and slit open to allow the vapors to diffuse throughout the enclosure, adsorbing as a protective layer on all metal surfaces. As long as the boiler remains closed, the corrosion-inhibiting vapors will be trapped inside to continue protecting the metal. When it's time to restart the boiler, Boiler Lizard can be left in the water side and allowed to dissolve, water-soluble bag and all, in the refill water.

Boiler Egg is a companion to Boiler Lizard. Whereas Boiler Lizard protects boiler internals during dry layup, Boiler Egg protects against corrosion from oxygen pitting during the startup phase, when makeup water is normally not pre-heated and the operating chemical program has not yet been implemented. Boiler Egg can either be added just before startup or, during layup, placed alongside Boiler Lizard, where it will remain dormant until the boiler is refilled. At that time, Boiler Egg will dissolve and activate.

Without effective corrosion protection during layup and startup, boilers risk metal loss, iron “poisoning” of the water, clogging from corrosion products, leakage, premature failure, and downtime, Cortec’s press release said.

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KEYWORDS: boiler industry boiler maintenance boilers corrosion prevention HVAC industry news hvac news briefs hydronics

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