Polishing aluminium
#151 _Herne_
Posted 02 June 2008 - 12:27 AM
What a great topic this has been and will continue to be.
Herne
#152
Posted 08 July 2008 - 11:48 AM
I polished the cylindrical cover section
started with a wire brush to remove build up and corrosion over the gold zinc plating.
Then used some 24 grit paper, then 300, then 600, then used the brown compound on a drill wheel that was kind of like a calico with large bits of a straw weave through it, then a white compund on a wheel that was like a calico, but lots of layers of it.
Then hand polished with some mirror shine.
It came up pretty good, but not perfect, its no where near chrome finish, but looks good for a first go.
There are alot of tiny marks that havent polished (like pits) if i attack it with the paper again and repeat the process will that help?
#153
Posted 08 July 2008 - 09:50 PM
#154 _greenmachine215_
Posted 08 July 2008 - 10:46 PM
If your after mirror chrome look Best off sending it in and getting it chromed for 30bux, It doesnt hurt to prep/sand your items back before chroming Infact it will turn out better dont ask how, It just does, my chromers told me that the more prep i do the better it will look,
Its almost impossible to get the chrome 'mirror' look on steel by polishing, But very achievable on aluminium.
Get stuck into your manifold and show us
I LUUURVE MANIFOLDS
#155 _j7723_
Posted 14 July 2008 - 10:35 AM
and wait till I start on mine
#156 _Viper_
Posted 16 July 2008 - 10:46 PM
Im assuming this is oxidisation??? is there a way to prevent it or am I doomed to jus preriodically repolish it?
#157 _j7723_
Posted 17 July 2008 - 11:12 AM
#158 _Viper_
Posted 17 July 2008 - 02:46 PM
#159 _greenmachine215_
Posted 17 July 2008 - 09:09 PM
But.
I found a spray varnish at bunnings, done some reserarch on the net, and many forums have a topic basically that its a great product and even withstands chemicals such as coolant,
i used on my fuel injectors as they are steel i dont want them to rust, im one against clear coating things due to the 'dull' effect, but this stuff you can barely notice the difference between raw and coated, Id recommend this stuff you spray on your turbo housing if your just having it as show,, May melt under extreme heat,
Its by White Knight, called CLEAR GUARD
quotes on can its non tarnishing and is for all types of metal including copper,brass,and alloy
Bunnings sell it for approx $14 300g can
Try it out let us know how you went
#160 _Viper_
Posted 17 July 2008 - 09:12 PM
Heres a pic of the lil bugger anyway was the hardest thing ive polished so far getting into the incredibly tight spots..
Edited by Viper, 17 July 2008 - 09:19 PM.
#161 _greenmachine215_
Posted 26 July 2008 - 12:42 AM
Heres another addition to the manifold,I Thought id share I got bored so i recond my injectors at work, and polished the bodies, used some of the metal coat clear gaurd, Come up a treat.
#162
Posted 25 August 2008 - 02:57 PM
#163 _j7723_
Posted 06 October 2008 - 06:45 PM
will put u when finnished
Edited by j7723, 06 October 2008 - 06:54 PM.
#164 _Herne_
Posted 06 October 2008 - 07:01 PM
Time to start on your own car for something different to do.
Those wheels are coming up great too. Cant wait to get mine off lol.
Am working at refurbishing the 18" commo wheels at the moment.
Cheers
Herne
#165 _panthervs_
Posted 06 October 2008 - 08:44 PM
#166 _Herne_
Posted 06 October 2008 - 09:56 PM
Cheers
Herne
#167 _j7723_
Posted 06 October 2008 - 09:57 PM
Is it possible to polish up lc bumper bars??
Yes but you need to look at were they are first if there Fu&& there fu&& so send me a photo and I will see and tell you what to do
#168 _j7723_
Posted 06 October 2008 - 10:43 PM
#169 _Yella SLuR_
Posted 11 October 2008 - 08:29 PM
Keep up great threads like this.
#170 _greenmachine215_
Posted 27 October 2008 - 11:41 PM
Its been a while ive slacked off a bit, figured i needed to save some cash to buy more stuff to polish,
Heres my latest piece, I Bought an alloy radiator for the hatch, A mate of mine tig welded 2 supports across the tanks to hold the trans cooler, i thought would look much nicer than stuffing plastic ties through the cores.
All up this took me about 10hours, Due to the fact that i havnt done much plate alloy polishing i #@$^%& up by rubbing back the surfaces 1200 grit,
hence why it took so long, I Found out later why i had such a bullshit finish, a local metal polishing mob told me NEVER EVER Rub sheet alloy to polish, it does not need it, not even the sisal cut wheel, just buff wheel with white compound and some pressure. cast is fine to grind sand and cut.
So i spent the next day fixing my f*ckups a long time on the cutting wheel to get the scratches out.
Im pretty happy with the results even though i done it the hard way.
And i think its time to find me a new grinder, might step the 6" benchy it up to a 10" the more pressure the better the finish
Heres in roar sheet
This is once id finished
Alloy dont crack like a mirror with an ugly face
And a new home for the VN injector covers that i cant sell on ebay for even 20bux BUY IT NOW
Cheers
Marc
#171 _Herne_
Posted 27 October 2008 - 11:47 PM
Glad you posted that 'cos you just reminded me I need to polish my trans cooler before it gets fitted this week.
Cheers
Herne
#172 _greenmachine215_
Posted 27 October 2008 - 11:58 PM
my partner said to me when she seen it, You are going to show your car off at shows arent you? I said nuh probly not I just polish things for my own satisfaction and to prove a point to myself and at the end result and know that i was able to do it.
Yeh the trans cooler come up just by hand i hit it with some autosol to cut it back a bit, then finished it off with purple polish, didnt go nuts on it trying to get into the very corners, cant see alot behind the grille.
Cheers for the comment too.
#173 _Herne_
Posted 24 March 2009 - 06:13 PM
Thanks herne
my partner said to me when she seen it, You are going to show your car off at shows arent you? I said nuh probly not I just polish things for my own satisfaction and to prove a point to myself and at the end result and know that i was able to do it.
Yeh the trans cooler come up just by hand i hit it with some autosol to cut it back a bit, then finished it off with purple polish, didnt go nuts on it trying to get into the very corners, cant see alot behind the grille.
Cheers for the comment too.
Car shows are not every ones cup of tea, especially if you like driving rather than sitting around Judges can be so fickle too!!!
Herne
#174 _Herne_
Posted 24 March 2009 - 06:19 PM
I didnt ask Jeremy to polish these but in his usual friendly way he said, they are too hard for you to polish, I will do them and promptly took them off me.
Watch this thread for his update when he's finished. More bling for yet unfinished engine bay.
Cheers
Herne
#175 _Viper_
Posted 24 March 2009 - 06:26 PM
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