What is a Protein Foam? A Comprehensive Guide
                                
                                
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                                    4 min read                                
                            
                                Originally developed in the early 20th century, protein foam was the first mass-produced firefighting foam, relying on natural hydrolyzed proteins to create a thick, stable blanket for extinguishing Class B fires. This specialized agent remains a key tool in fire safety due to its excellent heat and burnback resistance.