UV powder coating

The two most widely used finishing techniques for MDF boards are: Liquid coatings Paper-based laminates (mostly melamine impregnated) and Thermoplastic foils (PVC, ABS, polyolefine-based) A range of surface appearances and qualities can be obtained with these technologies. However, there can be some drawbacks with both liquid coating systems and overlays, which can be overcome by use of UV powder coating. When using liquid coatings, normally a multi-coat system with interlayer sanding is required to achieve attractive finishes. This means thatRead More …

The most suitable approach for a coating formulation is the use of a major binder and a crosslinker. The cross¬linker may control the network density for the coating, while the binder determines properties of the coating such as discoloration, outdoor stability, mechanical properties, etc. Furthermore, this approach will lead to a more homogenous concept in the powder coating applications as a category bringing similitude to thermosetting coatings where crosslinkers such as TGIC and hydroxyl amides are used. A crosslinker shouldRead More …

The latest development in powder coatings is the combination of powder coating technology and UV technology. This approach shows some very important benefits. The benefits due to powder coating technology versus liquid coatings are: Elimination or reduction of intermediate sanding steps; High performance at high utilization rate, reclaim leading to 95% powder usage; No VOC during the curing process; and Easy recycling and no waste treatment. New benefits due to the combined technology of UV and powder coating are: SplitRead More …

Blends of specific polyesters and epoxy resins have permitted the development of smooth, high-performance finishes for wood, metal, plastic and toner applications. Wood Smooth, matte clear coats have been successfully applied on hardwood and on veneered composite board, such as beech, ash and oak. The presence of the epoxy partner in the binder has boosted the chemical resistance of all the coatings tested. An attractive market segment for the advanced UV powder coating is as a replacement for polyvinyl chlorideRead More …

UV Powder coating for Smooth, Matt Finishes Blends of specific polyesters and epoxy resins permitted the development of smooth, matt finishes for metal and MDF applications. Smooth, matt clear coats were successfully applied on hardwood, on veneered composite board such as beech, ash, oak and on PVC used for resilient flooring. The presence of the epoxy partner in the binder boosted the chemical resistance of all the coatings. The best smoothness was achieved with the binder of modification  without having criticalRead More …

The combination of methacrylated polyester and acrylated epoxy resin offers an interesting blend of properties to the cured film. The presence of a polyester backbone results in good resistance of the coatings in weathering tests. The epoxy backbone gives outstanding chemical resistance, improved adhesion and smoothness. An attractive market segment for these UV powder coating is as replacement for PVC laminates on MDF panels for the furniture industry. The polyester/epoxy blend is achieved in four major steps. The polycondensation in theRead More …

Powder coating cured by ultraviolet light (UV powder coating) is a technology that combines the advantages of thermosetting powder coating with those of liquid ultraviolet-cure coating technology. The difference from standard powder coating is that melting and curing are separated into two distinct processes: upon exposure to heat, UV-curable powder coating particles melt and flow into a homogeneous film that is crosslinked only when it is exposed to UV light. The most popular crosslinking mechanism used for this technology isRead More …

UV powder coating formulations consist of:UV powder resin,Photoinitiator,Additives,Pigment / extenders. Curing of powder coatings with UV light can be described as “the best of two worlds”. This new method makes it possible to benefit from the advantages of high cure speed and low cure temperature as well as environmental friendliness. The main advantages of UV curable powder systems are: Low system costs Application of one layer Maximum powder use with overspray recycling Low cure temperature High cure speed Hardly anyRead More …