Powder coating is a new kind of coating which does not contain organic solvent but exists in powder form and forms coating. The coating is made of special resin, pigment, curing agent and other additives, mixed in a certain proportion, and then prepared by hot extrusion and crushing sieve. At room temperature, they are stored stably, after electrostatic spraying, friction spraying (thermosetting method) or fluidized bed dip coating (thermoplastic method), and then heated, baked, melted and solidified, so that a smooth and bright permanent film can be formed to achieve the purpose of decoration and corrosion prevention. It has the advantages of no solvent and no pollution, environmental protection and recovery, good adhesion and high mechanical strength of coating film, which makes it widen in many application fields in the machinery industry and national economy, and occupy a stable position in the market.
Automotive industry: It is mostly used for automotive engine, chassis, wheels, filters, joystick, reflector, wiper and horn parts coating. The main varieties are epoxy powder, polyester, acrylate system and so on.
Home appliance industry: Powder coating is widely used in the production process of refrigerators, air conditioners, washing machines and small household appliances. At present, epoxy polyester powder coatings with epoxy resin and polyester resin as the main film forming substances are widely used in household appliances, such as front and side plates of stoves and refrigerators, top and lid of washing machines, air conditioning, water heaters, freezers and microwave ovens, etc.
Metal building materials industry: In the coating of aluminum building materials, the representative powder coating varieties are epoxy resin, polyester resin, acrylic powder coating and so on.
Appearance and Molecular Structure of OMNISTAB UV928
In the future development of powder coatings, the addition of UV absorbers and other modifying agent will further improve the weathering resistance and UV resistance ability, so as to maintain its aesthetic and decorative. OMNISTAB UV928 is a UV absorber suitable for powder coatings and coil continuous coatings. It belongs to the wide absorption band benzotriazole UV absorber, so it is mostly used in high performance coatings. Due to the large molecular weight of the phenolic hydroxyl ortho-position R2 and para-position R3 in the UV928 structure, it has excellent thermal stability and is suitable for high temperature processing environment. And the UV928 has high solubility in most organic solvents, and is also suitable for other environmental friendly coatings. UV928 used with light stabilizer OMNISTAB LS123/LS292 will achieve better protective effect.
The other UV absorbers also can be used in powder coatings, as well as UV234、UV531, light stabilizer LS119 and other additives, our professional technical team can also provide you with some advice. For more product information, please visit our official website www.deltachem.net. Deltachem looking forward to your inquiry!
