Adrian,
I polished my 7x16 928 flat discs last year (I need to finish the wheels out past the slots) and them came up really well
This is what i did
- To remove the lacquer I brushed Nitromors (brand of paint stripper sold in motor factors over here) on to the face of the wheels covering the lacquer in it.
- Go for a cup of tea or do something else for 15 - 20 mins whilst the paint stripper eats into the lacquer.
- I then hosed the wheels off removing most of the lacquer and peeling other bits off by hand.
- Then reapplied paint stripper to just those ares that still had lacquer on them and did something else for 15 mins
- This time instead of hosing them off I used wire wool and rubbed by hand the areas where the lacquer was still on the wheels
- This should get most of the lacquer off
- I then removed the black paint in the slots and in the accents behined the slots (removing the paint from the accents was the slowest part if teh whole process as it just didnt want to come off)
- Next to remove the diamond cut finish I staring by using a sander like this http://www.powertoolsuk.co.uk/webcat...GSS280A&ID=438 with the following grades of paper, 240, 400, 1200 (will check on these as i may have stated with a more coarse grade)
- Next out came the polishing kit http://www.frost.co.uk/item_Detail.asp?productID=9010. The mops attach to a drill and uses differing grades of compound.
- I started with the medium polish and once done the wheels were really shiny.
- I used the finish polish compound and it made it them a bit more shiney.
- time taken to get to this point was probably 10-12 hours. To get the rest of the face of the wheels polished will take another 3-4 hours I would estimate, and the additional sanding/polishing (in the slots) will take another 3-4 hours
I havent sealed the finish with a clearcoat but its something I should do for the longterm (need to finish the polishing first) and so the wheels have dulled a bit since last summer.
I'm going to do the angled part of the wheels in the slots as I think this will give it a nicer finish. This will take a bit of time as this part of the wheel isn't as well finished (was hidden under black paint from the factory) but will really add to the overall shine.
I'm going to try and find time to finish the polishing off in the next few weeks and once they're done I'll post some pics.