Quantum45 Surfacing Primer/Highbuild Base
It consists of a single base component (Quantum 45 epoxy surfacing primer base), and 2 different activators: Quantum 45 primer activator, and Quantum HB high build activator (both sold separately). The correct activator depends on the condition of the boat you are priming.
For unblemished surfaces, mix the primer base with Quantum 45 Epoxy Primer Activator. If your boat has gouges and other surface defects, mix the same primer base with Quantum HB High Build Epoxy Activator and apply up to 20 wet mils every 1 to 3 hours.
Quantum 45 is easy to mix and apply by spray, foam roller, or brush. Available in quart and gallon sizes in gray and off-white colors.