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GFLAM-ZB5 is a micronized zinc borate designed to function as a smoke suppressant, flame-retardant synergist, and arc/afterglow suppression additive across a wide range of polymers. It acts through endothermic dehydration, releasing bound water that cools the surface and dilutes combustible gases, while simultaneously forming protective borate/boron-oxide type glassy layers that help shield the substrate and slow flame propagation. In practical formulations, GFLAM-ZB5 supports reduced smoke density and improved char integrity, contributing to lower toxic emission potential and more controlled burning behavior.
GFLAM-ZB5 is widely used as a synergist with halogenated and halogen-free flame retardant systems, helping improve efficiency and broaden compliance windows by strengthening condensed-phase protection and suppressing afterflame/afterglow. It is compatible with PVC, general thermoplastics, elastomers, and thermosets (including epoxy), and is particularly valued in electrical applications where it can support anti-tracking performance and reduce the risk of surface carbonization pathways. Its micronized particle size is engineered to disperse effectively, supporting consistent mechanical properties and stable processing when incorporated with appropriate wetting/dispersion aids. In wire & cable compounds, it is often selected to improve smoke suppression and arc resistance while maintaining insulation reliability. Final dosage is formulation-dependent and should be optimized based on the base resin, primary FR package, filler level, and target standard (UL/IEC), verified through laboratory and end-use trials.
Zinc borate; Borate smoke suppressant; FR synergist; Arc/track suppression additive; Micronized zinc borate grade
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Typically not regulated as Dangerous Goods
Free-flowing micronized powder
Generally compatible with common PVC stabilizers/plasticizers and polymer additive packages; verify with strongly acidic/basic systems and reactive metal oxides
Suitable for typical thermoplastic and epoxy processing temperatures
Reduces smoke density and supports more controlled burning behavior in insulation and jacketing systems.
Works alongside IFR/mineral FR packages to strengthen char and improve overall flame retardant efficiency.
Enhances FR performance and helps suppress afterglow/smoke when used with halogenated packages (formulation dependent).
Helps reduce arcing/afterglow tendencies and improves electrical safety performance in electrical housings and components.
Supports improved resistance to tracking and surface carbonization pathways in humid, dusty, or high-voltage environments.
Used as a synergist and smoke suppressant in flame-retarded elastomer formulations.
Improves char stability and smoke suppression in thermoset matrices used for electrical potting, laminates, and composite parts.
Suitable for FR-enhanced plastics and select coating formulations requiring smoke suppression and improved barrier formation.
Supports cleaner fire performance and improved visibility in fire scenarios.
Enhances efficiency of both halogen-free and certain halogenated systems.
Contributes to reduced arcing/afterglow and better tracking resistance in electrical applications.
Strengthens char and protective layers, improving flame spread resistance.
Micronized form supports consistent dispersion and stable compound performance when optimized.