Needing help with polishing the alumimum on my engine.
This has been discussed many times on the list.
There are some experts at rubbing here, search for them :gamer:
Quote from: Pat Conlon on November 21, 2015, 10:20:45 PM
1) Use a paint stripper to get the clear coat off...don't sand it. You will be uneedlessly adding too much work
If the parts you are restoring are already polished (like the clutch cover) go to step 3)
2) use progressively 800/1000/2000 grit wet/dry paper. Fold the sand paper so you don't get pressure spots. Use this paper wet. Get a spray bottle. Keep the paper and aluminum surface wet. Spray lots of water, it keeps the paper from loading up.
3) Finish off with multiple coats of Simichrome
Thanks pat!!,def gonna use your techniques on my polished aluminum.their in great shape for a 86,is their a sealer out their to protect t the final product?
Simichrome offers a good surface protection, easily renewed.
I've tried Zoop Seal (multi-step, complicated) but since have gone back to good 'ole Simichrome.
However, if you really want a clear coat, after the Simichrome polish, clean the area with alcohol or lacquer thinner (evaporates cleanly) to get all the polish residue off, then use a Urethane clear spray. For clear coats, Urethane is the hardest, most durable clear coat.
Personally, I do not like clear coats. I have not had good luck with them. They turn yellow over time. (I live in the desert) They dilute the luster of the polished aluminum. All you need is a small chip, nick or crack in the clear coat, then oxidation will get thru to the aluminum surface and spread under the clear coat. You won't be able to get to it, unless you strip off the clear coat and start all over.
Don't ask me how I know this.... :dash2: