freezemaster™ Antifreeze Blog
In-depth antifreeze and fire safety advice and insights from the experts behind the freeze protection technology like no other.
FAQs | Installation | Temperature | fire sprinkler systems
Because the primary purpose of antifreeze is to protect sprinkler systems from cold, contractors tend to only consider the minimum use temperature when selecting a listed antifreeze.
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The 2014 edition of NFPA 25, the standard for the inspection, testing and maintenance of water-based fire protection systems, was written to specifically include emergency changes regarding the use of antifreeze. Those changes were based on events in which activated sprinkler systems, fortified with antifreeze, actually intensified blazes rather than extinguished them. This was likely due to onsite errors in mixing the solutions that introduced excessive amounts of the active ingredients glycerin and propylene glycol, both of which increase flammability when present in high concentrations.
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