Waterborne salt spray-resistant epoxy primer
An epoxy primer and salt spray-resistant technology, applied in primers, epoxy resin coatings, coatings, etc., can solve problems such as solvent volatilization, human and environmental hazards, and incomplete drying, and achieve the effect of improving water resistance
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Embodiment 1
[0019] A water-based salt spray resistant epoxy primer, which mainly includes: A component and B component;
[0020] Among them, component A includes: 15 parts of low molecular weight epoxy emulsion, 20 parts of high molecular weight epoxy emulsion, 20 parts of water, 0 parts of leveling agent, 0 parts of drier, and 0 parts of polyurethane;
[0021] Among them, component B includes: 25 parts of curing agent, 20 parts of zinc powder, 0 parts of graphene, 5 parts of water, 0 parts of dispersant, 0 parts of organic bentonite, and 0 parts of defoaming agent.
[0022] The specific ratio of the A component to the B component is 1:1.
[0023] High hardness, poor adhesion, poor flexibility, average salt spray resistance.
Embodiment 2
[0025] Component A includes: 25 parts of low molecular weight epoxy emulsion, 30 parts of high molecular weight epoxy emulsion, 35 parts of water, 0.2 parts of leveling agent, 0.2 parts of drier, 0.2 parts of polyurethane;
[0026] Among them, component B includes: 35 parts of curing agent, 30 parts of zinc powder, 0.1 part of graphene, 5 parts of water, 0.2 part of dispersant, 0.1 part of organic bentonite, and 0.1 part of defoamer.
[0027] The specific ratio of the A component to the B component is 2:1.
Embodiment 3
[0029] Component A includes: 25 parts of low molecular weight epoxy emulsion, 30 parts of high molecular weight epoxy emulsion, 35 parts of water, 0.2 parts of leveling agent, 0.2 parts of drier, 0.2 parts of polyurethane;
[0030] Among them, component B includes: 35 parts of curing agent, 30 parts of zinc powder, 0.1 part of graphene, 5 parts of water, 0.2 part of dispersant, 0.1 part of organic bentonite, and 0.1 part of defoamer.
[0031] The specific ratio of the A component to the B component is 3:1.
[0032] Good flexibility, poor hardness, poor water resistance and smoke resistance, the effect is average.
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