The coating compositions of the present invention are particularly advantageous as primer surfacer coating compositions for automotive refinish applications. The compositions can be applied directly to bare metal surfaces and, after being allowed to dry and the finish prepared such as by sanding, coated...
(a sealer made by mixing 1 volume DP 40 epoxy primer with 1 volume DP 401 epoxy primer catalyst with 1/2 volume DT 870 reducer, all available from PPG Industries, Inc.). The sealed substrates were air-dried under ambient conditions for at least 1 hour before the example coatings were ...