Firebrake® ZB Zinc Borate (All Grades) in Bulk, IBCs or Small Bags
Zinc borate for fire retardancy
Firebrake® ZB is a unique zinc borate that combines the best of zinc and boron oxides with water release. Use it to develop fire-retardant formulations processable up to 290°C. Firebrake® ZB can be fed to extruders, calenders, or injection molding equipment, much like other solid polymer additives.
Firebrake® ZB releases its water of hydration at temperatures exceeding 554°F (290°C), so it can be used in systems that require high processing temperatures
Refractive index similar to that of most polymer systems, so it retains considerable translucency and enables the use of low pigment loading
Used as a flame retardant, char promoter, afterglow and smoke suppressant, and anti-arc agent in polymer systems
Depending on the base polymer used and the fire protection standards that need to be met, Firebrake® ZB can partially or completely replace other fire-retardant additives such as antimony oxide
Characteristics
Firebrake® ZB is a white, odorless, powder. A completely reacted zinc borate that is distributed homogenously throughout the WPC. When stored under normal conditions of temperature and humidity, Firebrake® ZB is chemically stable and shows no tendency to cake.
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ProductFirebrake® ZB
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