Mix Vetoprime EP491 as supplied. Add the entire content of the hardener container to the base container and mix thoroughly for about 2 minutes. Once mixed, apply Vetoprime EP491 immediately in a thin continuous film using stiff brushes or rollers. Avoid over-application and puddles.
Allow Vetoprime EP491 to become tack-free before applying epoxy coating (unless otherwise specified) but well within the open time specified for the given temperature.
The hotter the substrate, the more quickly the primer will become dry.