Halogen-Free Requirements Move Into Mainstream Construction
Building codes covering tunnels, rail, public buildings, and increasingly data centres now specify halogen-free low smoke compounds where PVC jacketing was standard, driven by smoke toxicity in confined evacuation routes. Those compounds grow at 10.2% against 6.8% for the market. Formulating them is harder than PVC because mineral flame retardant loadings above half the compound by weight degrade mechanical properties, and getting both right is where compounders separate from each other. Cable makers rarely revisit the choice once qualified. Switching reopens fire testing. Fire certification is not repeated to save material cost.
Market Impact: Cable must survive 40 years








