Knowledge base

Much has been written about the potential benefits of UV curable powder coatings, but little about actual the performance of the coatings for commercial applications. This paper presents test data of UV cured powder coatings on MDF. The tests are performed using typical commercial formulas or performed on commercially produced parts in order to pre

To date the efforts to promote UV powder coatings have been spent educating those responsible for finishing about the mechanics and technical benefits of UV powder coatings compared to alternatives such as thermal cure powder, liquid paints and a wide range of laminates. However, some of the most successful implementations have arisen from the uniq

The photopolymerization of Vinyl acrylate (VA) has been investigated with respect to the self-initiating efficiency. VA initiated polymerization of conventional acrylates exhibit fast rates of polymerization and high degrees of conversion are obtained. Herein we report a comprehensive real time infrared (RTIR) investigation of the reaction kinetics

The development of high power short wavelength light emitting diodes (LED) in the late 90s created the potential of a solid state ultraviolet/visible curing source. The benefits of LEDs are low heat, portability and low power consumption. These advantages are particularly attractive for the curing of various adhesives, inks, and coatings in applica

Due to the continuous trend in more stringent safety regulations, search for polymers with flame retardant (FR) properties is important. In the case of coatings (radiation curable or conventional), their flammability can contribute to the fire propagation. In some wood coating applications, significant level of fireretardancy is required. In this p

Cationic UV coatings frequently contain cycloaliphatic epoxides and polyols. Polyols are generallyused to improve coating flexibility and toughness. A practical limitation when using polyols is that theconcentration of hydroxyl equivalents can not be more than about one half the concentration of epoxideequivalents. Polyol concentrations that are mu

Powder coating and the benefits associated with this method of finishing have been profitable utilised for decades. The technology involved and the powder used have been developed and refined to the point where, today, more or less any product that can be powder-coated is treated in this way, for example, refrigerators, washing machines, bicycles a

Excimer lamps as monochromatic UV sources with an intense short-wavelength emission open up new possibilities for a photoinitiator-free initiation of the acrylate polymerisation. The reactivity of. various neat acrylates after excitation with 222 nm light from a KrCl lamp was studied by real-time FTIR-ATR spectroscopy and in some pilot scale trials