Is plastic powder coating toxic

Is plastic powder coating toxic

Is plastic powder coating toxic? Plastic powder is charged by high-voltage electrostatic equipment, under the action of electric field, the coating is sprayed to the surface of the workpiece, the powder will be uniformly adsorbed on the surface of the workpiece, forming a powdy coating; The powder coating is baked at high temperature and then levelled and cured, and the plastic particles melt into a dense final protective coating with different effects; Firmly attached to the surface of the workpiece, spray products are mostly used for indoor use of the box, the paint film presents a flat or matte effect. Spray plastic powder mainly acrylic powder, polyester powder and so on.

Acrylic powder coating has excellent decorative, weather resistance, and pollution resistance, and high surface hardness. Good flexibility. But the price is high and the corrosion resistance is poor. Therefore, European countries generally use pure polyester powder (containing carboxyl resin, TGIC curing); (hydroxy polyester resin cured with isocyanate) used as a weather-resistant powder coating. Plastic powder coating

The powder coating made of hydroxyl polyester resin has excellent weather resistance and is usually called weather resistant powder coating. Used in doors and Windows with aluminum extrusion material coating, road sign pile, automobile industry, transportation equipment: automobile and motorcycle accessories or wheels, bicycle body and road isolation fence, air conditioner shell and gas stove board, garden appliances, handrails and fences, agricultural equipment and electric poles.

Because plastic powder coatings contain curing agent TGIC. TGIC is triglycidyl isocyanurate, which is a heterocyclic polyepoxy compound with good heat resistance, weather resistance, adhesion and excellent high temperature properties. It is mainly used as curing agent for powder coatings containing carboxyl polyester and carboxyl acrylic resin. It is toxic and can have an effect on the reproductive system. Therefore, the use of plastic powder coatings should also be protected.