Firebrake ZB-Fine Zinc borate Borax Flame retardant / Fire retardant >> Boron based Amide Resins Epoxy Resins Polyester Vinyl End-use applications: coatings Firebrake ZB is a multifunctional boron-based fire retardant with applications in a variety of plastic and rubber compounds. Since Firebrake ZB releases its water of hydration at temperatures exceeding 290 °C (554 °F), it can be used in systems requiring high processing temperatures. Firebrake ZB has a refractive index similar to that of most polymer systems, which results in the retention of considerable translucency and allows the use of low pigment loading. It can be fed into extruders, calenders, or injection molding equipment in much the same way as other solid polymer additives. Firebrake ZB is used as a flame retardant, smoke and afterglow suppressant, and anti-arcing agent in polymer systems such as polyvinyl chloride, nylon, epoxy, polyethylene, polypropylene, polyesters, thermoplastic elastomers and rubbers. Depending on the base polymer used and fire standards to be met, Firebrake ZB can be used to replace partially (or even completely) other fire retardant additives such as antimony oxide. In some systems, Firebrake ZB displays synergism with antimony oxide. In halogen-containing systems, the usage level of Firebrake ZB is in the range of 3-25 parts per hundred parts of resin (phr). In halogen-free systems, the recommended level is in the range of 10-250 phr, normally used in conjunction with alumina trihydrate, magnesium hydroxide, or a silicone polymer. Examples of starting point formulations are available upon request. Firebrake ZB-Fine is recommended for applications where maximum fire test performance is needed, and physical properties such as film forming and adhesion are critical. Multifunctional zinc borate. Used as a flame retardant, smoke and afterglow suppressant, and anti-arcing agent in coatings. Suits for systems requiring high processing temperatures. Offers retention of considerable translucency. Allows use of low pigment loading. Can be used synergitically with antimony oxide, alumina trihydrate, magnesium hydroxide and silicone polymer. Recommended for applications where maximum fire test performance is needed, and physical properties such as film forming and adhesion are critical.