Wet-on-wet ultrafast-drying waterborne epoxy primer and preparation method thereof

The invention relates to a primer, in particular to a wet-on-wet ultrafast-drying waterborne epoxy primer and a preparation method thereof. The wet-on-wet ultra-fast-drying water-based epoxy primer is composed of a component A and a component B. The component A is prepared from the following raw materials in parts by weight: 25 to 50 parts of epoxy resin, 0.1 to 0.5 part of a de-foaming agent, 0.1 to 1 part of an anti-settling agent, 2 to 10 parts of a pigment, 20 to 50 parts of a filler, 0 to 10 parts of an anti-rust pigment and 0 to 20 parts of de-ionized water. The raw material of the component B comprises a water-based curing agent. When the primer is manufactured on the bottom surface at the interval of 10 minutes, finish paint does not have the defects of blistering, and also good glossiness is achieved. The primer realizes real wet-on-wet, greatly improves the construction efficiency, and is particularly suitable for assembly line construction. 本发明涉及一种底漆，尤其涉及一种可湿碰湿超快干水性环氧底漆及其制备方法。种可湿碰湿超快干水性环氧底漆，所述水性环氧底