FR203 (SZP) is a coating halogen-free flame retardant; It is a flame retardant containing nitrogen and phosphorus, the product is white, fine powder, its outstanding advantages are good thermal stability, insoluble in water, small smoke, no moisture absorption, in the endothermic decomposition of the formation of a foamy coke layer, covering the surface of the combustion, play a role in separating the air, the vaporized melamine provides an inert gas source, It can dilute the concentration of oxygen and combustible gas produced by the decomposition of polymers, so as to achieve the purpose of flame retardant. Fully in line with the EU RoHS environmental protection directive and relevant domestic policies and regulations on flame retardant materials halogen-free, low smoke, green environmental protection requirements. Machining process does not corrode the mold and other advantages.