Striped to the Cast Iron... Now ???

Here's how I would do it:

1. Lose the lacquer thinner. Use a slow drying specialty cleaner such as PPG's DX330. See "Basics of Surface Cleaners" for some background. Where it is cast iron, I would scrub the DX330 in well with a 3M Scotch-Brite hand pad and wipe as dry as possible with a clean rag while the surface is still wet. Throwaway nitrile gloves highly recommended. Allow a liberal amount of time for any additional drying after wiping. You do not want to trap any of the 330 in the pores of the cast.

2. Prime with an epoxy primer (2 coats) such as PPG OMNI MP-170. Get the tech sheet here.

3. Topcoat within the epoxy window (3 days for the MP-170) with PPG OMNI MTK 60080 acrylic urethane if you have fresh air breathing equipment or with OMNI MAE 60080 acrylic enamel (w/o hardener) if you do not. The 60080 is the early "pumpkin shade" of persian orange used on AC tractors prior to about 1960 - that is, all Bs and Cs. The tech sheets for these products is at the same site noted for the epoxy primer.

Rod