The last spoiler I resprayed was on my Lancia Thema turbo 16v, in Platino iirc. As this was not badly scratched I gave it a quick nib off with some old 320 stick on pads using the DA sander with a little spot priming and then I used the 3M's rubber block with wet and dry with 320 again, using that bar of Imperial Leather?
: I'd still go the 220/240 route with W&D if the scratches were deep prior to using a good primer filler coat, to ensure a good key.
Agree on the time required before clear coating, but of course all this depends on the materials, location, temperature, and of course equipment used? I'm well out of practice now, but the notes I made way back for applying nitro synthetic flat base coat and lacquer were after using primer filler and the subsequent flatting :
Base Coat- Minimum Three Coats. 5-10 minutes between coats, leave completed for 30 mins.
Clear Lacquer- 3 Coats 5-10 minutes between coats,( not thinned!)
Airline pressure pressure and fan width adjusted accordingly, (using the outdated?Binks Bullows Barracuda
The primer filler was always applied using the 'well old'
' Air Industrial Developments gun. If I'm honest I'd have to have a bit of practice first on some scrap material, as I've totally lost touch really?
Just hope our friend sorts it, which I'm sure he will, even if he has to do a few practice runs first? Pun not intended for runs!