PERFORMANCE OVERVIEW
Boron nitride coating is a water-based environmentally friendly coating. It is pollution-free and contains no volatile organic compounds. It uses high-purity and high-crystallinity hexagonal boron nitride micro-powder as the main raw material, aluminum-silicon colloids and ultrafine powders as binders, and various inorganic additives. It is made through thorough stirring, dispersion, grinding and emulsification. Hexagonal boron nitride, also known as “white graphite”, has the properties of high temperature resistance, corrosion resistance, high thermal conductivity, good lubricating performance and non-wetting. It has good non-wetting properties with molten aluminum, copper, magnesium, zinc and their alloys, and can effectively protect the refractory material lining in contact with molten metals. It is an excellent release material in industries such as metal and glass.
APPLICATION METHOD
Shake well before use and dilute it with water according to a certain proportion. Clean the surface to be painted and control the temperature below 150°C. Otherwise, it is prone to peeling and flaking due to the rapid evaporation of moisture, which will affect the application effect of the coating. It is recommended to use a spray gun for spraying. The coating should be sprayed evenly and not too thick. After spraying, it is necessary to dry the coating by baking with a blowtorch or using the residual heat of the mold.
PRODUCT BENEFITS
It is water-based and environmentally friendly, free from pollution and safe for transportation. The coating has good adhesion, high strength, excellent thermal stability and remarkable release effect. It has good non-wetting properties with molten aluminum, copper, magnesium, zinc and their alloys, and can effectively protect the refractory material functional parts in contact with molten metals, prolong their service life, improve production efficiency and reduce production costs.
APPLICATION RANGE
Boron nitride coatings can be applied in the fields of melting, casting and extrusion of aluminum, magnesium alloys and copper. They are widely painted on the surfaces of the refractory linings of various equipment such as degassing boxes, deep beds and filtering boxes, as well as on the surfaces of refractory consumables like online launders, graphite rotors, distribution plates, adapter plates, bottom pouring tubes, diversion tubes, floating funnels and casting nozzles. They protect refractory functional components, enhance corrosion resistance and prolong the service life of refractory materials. Meanwhile, during the production process, they prevent fine impurities from peeling off and penetrating into the molten metal, thus avoiding inorganic inclusion pollution and improving product quality.
