prime and block sand with 180, prime and block with water sanding again with 320.
(add a little dish soap to you water to help keep paper from clogging as bad and keep the work area wet) spend the extra time and elbow grease on the blocking before sealing and u will b pleased with ur work

64 Barracuda 70 Duster 70 Dart 79 Warlock Truck 92 Dodge 150 05 Magnum