Morris Minor Owners Club

Just wondering if anyone knew ,or could point me to a previous thread, how do you flat down old cracked or damaged paintwork for respraying ?

From the look of that I'd say strip the paint off as rust has got underneath it.

Nitromors it back to bare metal. Treat with Jenolite (or similar). Flat down bare wing with 150 grit wet and dry (used wet). Dry it all off completely. Etch prime. Flat with fine paper (about 800) then build up with filler primer. Flat back again and apply top coat in thin layers flatting with 1500 between each layer until you build up the paint. Leave for a week to harden then cut it back with G3 or similar then poish to a shine

When you describe the process like that it sounds like it wont take very long at all!

Anything much less wont last very long

It sounds much easier than it is

I'd be tempted to just use a 40 or 80 grit D/A and not get the steel wet at all. A 40grit will cut through the paint in no time and will provide a good surface for filler if required and/or the etch coat, which can be over coated with primer after only 20mins flash off (longer if not heated), no need to flat back the etch as its only a thin layer of paint used to key the steel.
If using celly paint then apply 3 coats and allow a week to dry hard if flatting is required the use a minimum of 1500 grit wet, using lots of clean water to wash off the working the surface. Apply further coats if required and cut and polish as described by Rich.