Coating process: production method of room temperature curing waterborne epoxy coating

Core tip: room temperature curing epoxy coating consists of two components: component A is epoxy resin dispersion, and component B is water-based curing agent dispersion, with the composition percentage as follows: Component A, component B, component% mass%, low molecular weight liquid epoxy resin 80-90 modified amine curing agent 22-28 active diluent 5-8 water 15-20 dispersant a0.2-0.4 dispersant b0.2-0.5 defoamer a0.05-0.1 defoamer b0.2-0.4 nonionic surfactant 0.3-0.8 leveling agent 0.2 Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of coatings: room temperature curing epoxy coating consists of two components: component A is epoxy resin dispersion, component B is water-based curing agent dispersion, and its component mass percentage is as follows: component A, component B, component mass percentage, low molecular weight liquid epoxy 80-90 modified amine curing agent 22-28 active diluent 5-8 water 15-20 dispersant a 0.2-0.4 dispersant B 0.2-0.5 defoamer a 0.05-0.1 defoamer B 0.2-0.4 nonionic surfactant 0.3-0.8 leveling agent 0.2-0.4 anti settling agent 0.8-1.5 the ratio of 50-60 a component and B component is 1:4 Production method: component A: epoxy resin, active diluent, dispersant a, defoamer A and non-ionic surfactant are successively put into the dispersion cylinder to disperse for 15 min at high speed (1000-1500r / min), then water-based color paste is added, mixed to the specified color, and finally filtered and packaged Component B: put the water-based amine curing agent, water and various additives into the dispersion cylinder for 15 minutes in high speed (1000-1500r / min), then add the constitutional pigment, mix evenly, and finally filter the package The two dispersions are mixed according to the ratio of a: B = 1:4 After curing at room temperature for 15-30 minutes, brush coating, roll coating or trowel coating can be selected for construction The film with good film-forming effect and excellent performance can be obtained The coating has high adhesion to many substrates, excellent corrosion resistance and chemical resistance of cured film, small shrinkage, high hardness, good wear resistance, excellent electrical insulation, etc What's more, there is no organic solvent or low VOC content after hydration, which will not cause environmental pollution and meet the requirements of environmental protection At the same time, with water as the dispersing medium, the odor is small and non combustible, and the safety in the process of storage, transportation and use is greatly improved; the operation performance is good again, no mechanical mixing device is required, and the construction tools can be washed directly with water, and can be reused, reducing the construction cost The mixed system can be cured at room temperature and humidity, and has high crosslinking density The water-based epoxy coating can be used as high-performance building coating, equipment primer, industrial workshop floor paint, transportation primer, automobile maintenance primer and industrial maintenance finish Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,