BN ZAPA Screen Printing Paste

A ready-to-use water-based, totally inorganic, pH-Acidic (like lemon juice) white paste that

is designed to produce a tough, flexible, abrasion-resistant and water-resistant coating of Boron Nitride on all substrates – cloths, metals, ceramics and graphite. BN ZAPA is a paste with Zirconium Oxide binder and is particularly designed for applying to cotton, cotton-polyester or ceramic fabrics or cloths.

BN ZAPA can be applied by trowel, spatula, putty knife, squeegee or paint brush. Cure the applied coating at approximately 130 C if water insolubility is desired. The coating itself is usable to over 1652 F (over 900 C). Thinner coatings give the best results.


Key Attributes

  • Adherent to most all materials; withstands thermal cycles
  • Water insoluble after heating to approx. 130 C for <= 1 hr
  • Minimal outgassing on heatup, with water vapor as the evolved species
  • High temperature stability: does not glaze, melt, run, become tacky or lose adherence
  • Easily applied, like house paint
  • Water-based; utensils are readily cleaned up with water

Ideal Uses

  • Coating cotton or polyester fabrics, and safety cloths
  • Coating ceramic cloths/fabrics or heat-resistant textiles, tapes, felts, or pads for use at high temperatures
  • Providing a water-insoluble Boron Nitride coating on a substrate