Product and Proportion:
Epoxy Primer: Hardener: Thinner =4:1:1
Hardener: Two-component Master Paint, Hardener Must Be Added, Otherwise it Will Not Harden.
Thinner: When Spraying, Add Thinner to Ensure That The Paint is Fully and Completely Dissolved.
The Volatilization Stability of  The Thinner Has a Certain Impact on The Spraying Effect (the Primer is Too Thick in Winter, and it Needs to Be Doubled).