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Coating technology, the definition of the concept of the painting process and the thinking of the current argument, I believe that the structure of the the coating technical knowledge system should be the main factors (elements) and a secondary factor; major factors should be divided into five major elements: coating materials (chemical materials and accessories), painting equipment (including tools), the painting environment, painting process, painting Management. Specific analysis and study of the five elements. The coating material is chemical materialsRead More …

Dusting equipment electrostatic powder coating commonly known as “electrostatic spray”. The spray can be manual, automatic or manual + automatic. 100% of the spray material is a solid powder, the free powders can recycle the paint recycling rate up to 98%. Suspension of the transport system, a high degree of automation. The coated microporous less, good corrosion resistance, and can be a thick film. Electrostatic powder coating based on having an atomizing Tsui (the paint atomizing), and the discharge stageRead More …

One of the big advantages of the SC Johnson hydroxy and carboxy acrylics is their compatibility with conventional electrostatic powder coating systems. This makes it possible for custom coaters to use powders formulated with these chemistries on their application lines without fear of major contamination problems. Hydroxy acrylic / IPDI systems can be formulated over a relatively wide gloss range. In lower gloss versions,they easily pass the new weathering requirements of the automotive industry . This makes them the preferredRead More …

TGIC Replacement chemistries Acrylic graft copolymers containing free glycidyl groups These hardeners,which include glycidyl methacrylate(GMA) curatives have recently been promoted as crosslinkers for carboxy polyester. Since the cure mechanism is an addition reaction, film builds that exceed 3 mils(75 um) are possible. So far, accelerated weathering tests of polyester GMA combinations indicate results similar to those of TGIC. Some formulating problems exist when acrylic graft copolymers are used ,for example, flow and leveling properties are relatively poor. New carboxy polyesterRead More …

TGIC Replacement chemistries Tetramethoxymethyl glycoluril (TMMGU) Hydroxyl polyester/TMMGU combinations,such as powderlink 1174,developed by Cytec, may offer an excellent opportunity to replace TGIC in applications that require thinner film builds. As this chemistry’s cure mechanism is a condensation reaction, some of the application problems described in the section on HAA curatives also occur with this curative. However, recent evaluations and data show that pin hole free coatings can be obtained with hydroxyl polyester / TMMGU combinations even when film builds exceedRead More …

Electrostatic powder coating spraying because he does not use the solvent will not cause solvent pollution in the atmosphere, while avoiding the danger of fire due to the solvent, is also easy to transport and storage of raw materials. The spraying process, the overspray powder is not coated on the workpiece can be recovered, the recovery rate of up to more than 95%, to improve the utilization of raw materials, to reduce the material consumption costs. Superior film performance, betterRead More …