Epoxy Primer to resist rust

Epoxy Primer for the iron doors is also known as a two-part epoxy; it contains zinc phosphate, which can be adhesive to the metal surface tightly to provide corrosion resistance. Epoxy primer is waterproof and can cover the slight scratch of the iron, so it is widely used as the first base to plate the bare metal to resist corrosion. It always shows a white color and can be put on the metal by hand.