sounds like your Dad was using lacquer primer surfacer. It has all but been eliminated. You can still find it . Omni has a primer surfacer that is 2K urethane that air dries overnite can be guide coated, and reapplied. The only thing that you will find different is you must use an activator with the primer. You will need to use what you mix. 2 coats without reducing is suffient for most prime outs. Omni MP182 urethane 2k and MH165 hardener/activator. Works great have been using for 5 or 6 years.