danp76
Oldtimer
Just to confirm:
Scenario 1: Month+ cured 2k urethane primer sanded 400-600 scratch.
Scenario 2: Month+ cured epoxy primer sanded 400-600 scratch
activated base coat may be applied over cured sanded urethane, but not cured sanded epoxy, both with the same scratch size? ***** both receiving a "new scratch" prior to applying base coat, to refresh scratch. Why is this?
Scenario 3: base coat applied over epoxy within 7 day window, but sanded with 400-600 scratch Scenario 4: base coat applied over urethane sealer with proper flash times Is the chemical bond between basecoat and epoxy or urethane better, or is the mechanical scratch a better bond? Some techs like wet on wet, others rely on mechanical adhesion, what do the test show for best bond/adhesion? Which "scenario" creates optimum results, and is there a measurable difference in adhesion?
Scenario 1: Month+ cured 2k urethane primer sanded 400-600 scratch.
Scenario 2: Month+ cured epoxy primer sanded 400-600 scratch
activated base coat may be applied over cured sanded urethane, but not cured sanded epoxy, both with the same scratch size? ***** both receiving a "new scratch" prior to applying base coat, to refresh scratch. Why is this?
Scenario 3: base coat applied over epoxy within 7 day window, but sanded with 400-600 scratch Scenario 4: base coat applied over urethane sealer with proper flash times Is the chemical bond between basecoat and epoxy or urethane better, or is the mechanical scratch a better bond? Some techs like wet on wet, others rely on mechanical adhesion, what do the test show for best bond/adhesion? Which "scenario" creates optimum results, and is there a measurable difference in adhesion?