Protective coatings: "The importance of water-based systems continues to increase"

Daniel J. Weinmann, hexion's epoxy market development manager, and David Vanaken, global technology and marketing director for Versatics, talked about current trends in protective coatings.
, where is the raw material research and development focus for protective coatings?
is emerated by Mmarket Development Manager Epoxy, Hexion
. Daniel J. Weinmann: For the research and development department in the raw materials section of the coating value chain, product development chemists focus on a number of areas, one of which is the development of new products to help paint formulaters reduce solvent emissions (i.e., reduce VOC).
In addition, reviewing the various components of current commercial products to improve their sustainability and developing product technologies to extend service life (e.g., better corrosion resistance or flexibility) or to help reduce application costs (e.g., reduce the total number of coatings) is also key . Another focus is to make coatings with raw materials that have a more favorable environmental footprint than reduced VOCs (reducing isocyanates, bio-based, etc.).
is the popularity of water-based coatings in the field of protective coatings?
Vanaken, Global Technology and Marketing Director,
Versatics Epoxy, china: Water-based systems are being increasing importance in this area. The protective coatings market can be segmented into light, medium and heavy applications. Water-based epoxy systems have been established for the protection of lightweight and medium-sized concrete and masonry buildings.
the water-based epoxy system will continue to grow as U.S. regulations fall to 100 g/L or maximum VOC 50 g/L. For lightweight to medium-sized industrial maintenance applications, 2K and self-interlinking acrylic emulsion polymers are being used in applications such as direct metalliization (DTM).
are commercializing water-based epoxy systems for metal protection for heavy-duty applications that require corrosion and chemical resistance - but they are now higher-value, smaller coatings.
trends that you think will dominate the corrosion protection coatings market in the coming years?
: Overall, there is a shift to reduced-cost solutions and less environmentally impacted coatings. Isocyanate-free, lower VOC coatings with acceptable costs and properties, similar to established chemical methods, remain a hot topic.a further development in
corrosion-resistant epoxy coatings is the development of a mixed resin system that provides greater flexibility and improved weather resistance and reduces the cost of coating formulations by selecting a lower-use amine curing agent (PHR) or by selecting a lower-use epoxy system. Mix viscosity. Lower mixing viscosity reduces costs by achieving a higher fill.
by incorporating a low-yellow resin system that uses non-isocyanate, cross-linked chemicals, formulaters can improve worker safety and potentially reduce the number of coatings. Another focus is on reducing application costs by d'moist-to-wet coating systems, faster drying and faster curing systems, or developing coatings with improved surface tolerance.
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