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Coatings Ingredients
The material selection platform
Coatings Ingredients
by SpecialChem
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Firebrake® ZB

Firebrake® ZB by U.S. Borax (Rio Tinto) is zinc borate-based flame retardant, smoke and afterglow suppressant and anti-arcing agent for coatings.
  • It is compatible with polyvinyl chloride, nylon, epoxy, polyethylene, polypropylene, polyesters, thermoplastic elastomers and rubbers.
  • It can be fed to extruders, calanders and injection molding equipment.
  • It can be used in systems requiring high processing temperatures because releases its water of hydration at temperatures exceeding 290°C.
  • In halogen-containing systems, the usage level of Firebrake® ZB is in the range of 3-25 parts per 100 parts of resin (phr).
  • The recommended usage level in halogen-free systems is in therange of 10-25 phr and used in conjunction with alumina trihydrate, magnesium hydroxide, or silicone polymer.
Product Type
Flame Retardants / Fire Retardants > Boron-based
Chemical Composition
Zinc borate
CAS Number
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