Methyl ethyl ketoxime (MEKG) is widely used as anti-skinning agent in air-drying paints since more than half a century. The product has proved to be particular advantageous to the user, offering various technical and economical benefits and can be implemented in different sort of paints. This paper aims to present an overview of recent developments in anti-skinning agents, including updated information on health and safety data and characterization of complexes of MEKO to cobalt ions. Furthermore, a new proposal referring to the working mechanism of MEKQ will be presented, supported by recent analytical data. Comparisons between MEKO with recently proposed anti-skinning agents have been made, evaluating the effect on various paint properties, including skin formation, discoioration as well as drying. Oxime based anti-skinning agents outperform very clearly non-oxime additives, MEKO being the most effective anti-skinning additive. For odor-less paints, an oxime-based compound with specific low-odor features could be selected
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