Epoxy Coatings R&D Manager
Mingbo has worked in the coatings industry for more than 25 years, focusing on the coating formulation of various resin chemistries. He went to North Dakota State University for the Polymers and Coatings graduate program and started his coating career at Vogel Paints in Orange City, IA. Since then he has worked for several coating companies with most of the time in the coating resin business of Hexion Specialty Chemicals (formerly part of McWhorter Technology, Eastman Chemicals, RSM). After a few years at DSM’s UV coating unit, he joined the Hexion’s epoxy coating and civil engineering R&D team in 2016.
A Novel, Lower Yellowing, Faster-Cure Epoxy System for Indoor Concrete Protection
Epoxy floor coatings typically combine a liquid epoxy resin with a cycloaliphatic amine. To protect the epoxy coating layer from abrasion and UV degradation, a polyurethane topcoat is typically applied. However, this means exposure to isocyanate, longer time before return to service and higher costs. To overcome these shortcomings, a solvent-free, ultra-low-yellowing epoxy system with improved hardness development has been developed for floor coatings. Coating testing data from accelerated weathering, as well as property development under a range of temperature and humidity conditions will be summarized in this presentation. Blush resistance under high humidity conditions is a specific challenge that has been successfully addressed by this new system. The performance of this novel epoxy system is evaluated in clear enamel and white gloss coatings. This lower-yellowing epoxy system is recommended for indoor-durable applications as a single-layer coating to replace two-layer coating systems.