Zinc Borate

Zinc Borate is a boron-based fungicide and fire retardant with a chemical composition of ZnOB2O3H2O. The most commonly used grade have following structure 2ZnO.3B2O3zH2.3,5H2O

Its optimum performance is as a Biocide (fungicide and preservative) and corrosion inhibitor and this is obtained when our product is uniformly dispersed in a coating or composite. With a coating it should be incorporated during the pigment dispersion cycle in the coating preparation process.

Zinc Borate can be used as a fire retardant in PVC, Polyolefins, Elastomers, Polyamides, Epoxy resins. In halogen-containing systems, Zinc Borate is used in conjunction with antimony oxide, while in halogen-free systems, it is normally used in conjunction with alumina trihydrate, magnesium hydroxide, or red phosphorus. In some particular applications Zinc Borate can be used alone.

Royce Zinc Borate is EPA approved.

Following is the Royce range of Zinc Borate based products

1. FireChoke ZB is used in most polymer compounds as a smoke suppressant and flame retardant. At temperatures in excess of 290 degrees centigrade, Zinc Borate diffuses water of hydration to prevent fire and suppress smoke. FireChoke ZB is also used to impregnate flame retardant properties to canvas materials and cotton fabrics. Typical applications in canvases are Tents. For more information on the right grade for your polymer or textile, please contact us using the contact us form

2. Fiberguard is specifically used for treatment for Wood, Lumber, and Hardwood Plywood against termites and other corrosive insects. Widely used by the American Lumber industry as also a preservative, this product has been tried,, tested and is used extensively to promote the long life of wood. Newer applications meet the needs of MDF particle board and Wood Composite product manufacturers. Plastic-Wod deckboards benefit with flame retardant and mold prevention properties when added in the extrusion stages.

3. CeramicGuard-ZB : Recently, borates have been an essential ingredient in ceramic and enamel glazes, integral to affixing glazes or enamels, and enhancing their durability and luster. Borates now are gaining acceptance as an essential ingredient in ceramic tile bodies, allowing manufacturers to use a wider range of clays, heightening productivity and decreasing energy usage.

Zinc Borate in Plastics :

Polymer	Benefits
PVC	· Smoke suppressant · Flame retardant · Synergist of antimony oxide · Lowers total fire retardant cost · Char promoter
Polyolefins	· Smoke suppressant/char promoter · Afterglow suppressant · Improves elongation properties · Anti-arcing agent
Polyamides	· Anti-tracking agent · Synergist of halogen sources · Afterglow suppressant · Used in both halogen containing and halogen-free nylons
Elastomers	· Smoke suppressant · Afterglow suppressant · Char promoter · Anti-arcing and anti tracking agent
Epoxy resin	· Smoke suppressant · Char promoter · Partial or complete replacement of antimony oxide

Ask one of our experts to recommend a formulation for your requirements.