Technical knowledge of coatings: characteristics of powder coatings

Coating technology: powder coating is a new type of solvent-free 100% solid powder coating It has two major categories: thermoplastic powder coating and thermosetting powder coating The coating is made of special resin, pigments and fillers, curing agent and other additives, mixed in a certain proportion, and then prepared by hot extrusion, crushing and sieving Under normal temperature, they are stored stably After electrostatic spraying or fluidized bed dip coating, they are heated, baked, melted and solidified to form a smooth and bright permanent film, so as to achieve the purpose of decoration and anti-corrosion Features: 1 The product does not contain toxicity, solvents and volatile toxic substances, so there is no problem of pollution such as poisoning, fire and discharge of "three wastes", which fully meets the requirements of national environmental protection law 2 The utilization rate of raw materials is high, and the over sprayed powder can be recycled, and the utilization rate is more than 99% 3 After pre-treatment of the coated object, one-time construction, without primer, can get enough thickness of film, easy to achieve automatic operation, high production efficiency, can reduce costs 4 The coating is compact, with good adhesion, impact strength and toughness, high corner coverage, excellent chemical resistance and electrical insulation 5 The storage and transportation of powder coating are safe and convenient.