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Novel high performance, waterbased “high solids”and bio-based industrial wood coating (NEXT1KOAT)
Start date: Jan 1, 2013, End date: Dec 31, 2015 PROJECT  FINISHED 

The stringent Solvent Emission Directive (1999/13/EC), fully transposed in 2007, imposes limitations of emissions of volatile organic compounds (VOC) due to the use of organic solvents in paints and varnishes. The most economical way of limiting VOC emission is using water-based coating formulas in which water replaces a substantial amount of the organic solvents traditionally used. Unfortunately, water-based formulas have deficient properties in comparison to solvent-based, primarily as a consequence of using water as a solvent: poor wood wetting, high grain raising, longer drying times, foam formation, insufficient glossy aspect, and deficient overall resistance. Coatings (varnishes and paints) are of key importance to the final products of our industries: coatings define the visual aspect and softness of the furniture piece, influencing its effective purchase; also the durability and resistance of a coating is a measure of the quality of the whole piece. The aim of NEXT1KOAT is to give European woodworking and furniture manufacturers a long-lasting solution by developing a first triple system (exterior uses impregnation; interior uses undercoat and topcoat) of one-component (1K) “high solids” (>70%) water-based coatings. NEXT1KOAT will be produced by European SME coating manufacturers due to its affordable chemistry based on seaweed polymers, and it has been designed for European woodworking and furniture small and medium coating installations. NEXT1KOAT will have the following advanced properties: Less water content (30%), reduced drying time and less grain raising, improved wood wetting without the use of surfactants, less foam formation, more glossy final aspect and increased hardness.

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