Knowledge base

Oxygen inhibition of free radical polymerization is the most severe handicap for radiationcuring technology. Oxygen inhibition is slowing down the reaction rate, limitingproduction speed, and is the reason for bad curing of the surface layer (tackiness). For mostapplications a properly cured surface is the most important asset of the coating with r

Radiation Curing has proved to be an efficient method to provide polymeric layers byexposing liquid systems to UV or EB radiation. Besides the absence of non-reactive volatilesolvents (VOCs) still used in many coatings, printing inks and impregnants it is the advantageto gain a 100 % conversion of suitable systems within fractions of a second. Besi

Ultraviolet (UV) and electron beam (EB) curable release coatings continue to growin popularity. Fueling this growth are many unique features including the ability tobe cured at, or slightly above, room temperature with no solvent emissions. Mostsuccessful release coating formulations are based on silicone resins. Acrylatefunctional silicones are re

The use of solvent free UV- (Ultraviolet) and EBC- (Electron Beam Curable) printing inksleads to a remarkable reduction in VOCs in the environment and at the working place.For a radiation curable ink it is a must that the color shade, the brilliancy and the lightnessof the print does not change after irradiation or - if it changes - the change must

The photoinduced cationic polymerization of cycloaliphatic epoxide basedsystems continues to succeed in an increasing number of applications. The growingexperience in the formulation of these systems have greatly improved their versatility andpotential.The cure rate of cationic photopolymerization can be largely influenced by thenature of the compo

Chemical resistance can be understood in two different ways : solvent resistance or chemicalattack. Solvent resistance is one of the main requirements any coating has to pass, and thisapplies to any kind of application : furniture, flooring, metal decoration, etc... The solventresistance test is performed most of the time by rub test using Methyl E

Improved economic conditions, advances in e-beam chemistry and e-beam processingtechnology, and expansion of production capacity by multi-national companies have allcontributed to increases in the installed base of e-beam processors in Europe during the past2-3 years. In addition to the "traditional" e-beam applications in the curing of printing in

In the last 20-30 years ecological requirements caused high interest in coatingsystems which allow both reduction of VOC emission and a decrease in energyconsumption for drying and hardening. Thus, the coatings industry and rawmaterials suppliers have made strong efforts to find new solutions and improvementsfor waterborne coatings, high-solids, po