Quote:
Originally Posted by mglemans86
The problem with the tips is they were not polished smooth during manufacturing. They appear to be spin formed http://en.wikipedia.org/wiki/Metal_spinning This process leaves small grooves in the part (peaks and valleys). Run your fingernail along the tip and you'll hear a sound similar to running it across an old LP album (for you yuts out there it doesn't happen on a CD)
So when cleaning and polishing you are only really shining the peaks not the valleys. Corrosion is left in the valleys and spreads quickly. The way to fix this problem is to remove the pipes and buff the surface smooth with a proper buffing wheel and compound. Once you have a mirror finish (no more peaks and valleys) it's alot easier to keep shinny.
|
mgleman is exactly correct in his analysis ,explanation, and advice regarding the surface finish.
I am guessing that the choice of the final surface RHR (finish) was to make it easier to care for them. A high gloss aluminum finish would show every smudge, smear, water spot, etc.