Mr_Asa
Mr_Asa UberDork
4/29/21 12:50 p.m.

Working on the below PITA.  I've removed the crappy hunting motif, but now I have a large amount of aluminum sheet with uneven surface finish.  

What's the easy button to get a uniform, natural aluminum, finish?

stafford1500
stafford1500 Dork
4/29/21 12:55 p.m.

A case of elbow grease should be in your shopping cart.

You may be able to get what you want with some of the open abrasive pads (like scotch-brite on a disc), but I would suggest you test it first to see if that is the look you want. I t may show swirls. The other power option is sandpaper on an orbital sander, but there appear to be a few fasteners that will cause headaches. Final answer is probably hand work, thus the elbow grease mentioned above.

llysgennad
llysgennad Reader
4/29/21 12:59 p.m.

Gentle media blasting

Tom Suddard
Tom Suddard Director of Marketing & Digital Assets
4/29/21 1:07 p.m.

You're not too far from these people:

https://www.theblastmasters.com/

They do all our project cars for Classic Motorsports; tell them Tom from GRM sent you over and they'll take care of you.

1988RedT2
1988RedT2 MegaDork
4/29/21 1:12 p.m.
Trent
Trent PowerDork
4/29/21 1:13 p.m.

There has to be a wish quality level version of this by now

https://www.eastwood.com/eastwood-contour-sct.html

 

Rotating scotch Brite pad. What they use to put the grain back on a DeLorean 

Grtechguy
Grtechguy MegaDork
4/29/21 1:58 p.m.
Trent said:

There has to be a wish quality level version of this by now

 

https://www.eastwood.com/eastwood-contour-sct.html

 

Rotating scotch Brite pad. What they use to put the grain back on a DeLorean 

Amazon suggests this: https://www.amazon.com/Handheld-Burnishing-Stainless-Polishing-Auxiliary/dp/B08G8BZC7V/ref=pd_sbs_3?pd_rd_w=P3tZB&pf_rd_p=2419a049-62bf-452e-b0d0-ca5b7e35a7b4&pf_rd_r=YNFV3H2BRTSW34EAPBRS&pd_rd_r=57850789-e649-4f78-aa9e-a1217a46dc3b&pd_rd_wg=0gC6t&pd_rd_i=B08G8BZC7V&psc=1&tag=knoa-20

 

TVR Scott
TVR Scott SuperDork
4/29/21 2:06 p.m.

A random-orbit "DA" sander will give you a uniform swirly finish.  Finer finish just takes finer grits.  Lots of machinery parts are finished that way.

captdownshift (Forum Supporter)
captdownshift (Forum Supporter) UltimaDork
4/29/21 2:45 p.m.

Mr_Asa
Mr_Asa UberDork
4/29/21 3:05 p.m.
Trent said:

There has to be a wish quality level version of this by now

https://www.eastwood.com/eastwood-contour-sct.html

 

Rotating scotch Brite pad. What they use to put the grain back on a DeLorean 

This looks useful for other reasons.  Nice. 

TVR Scott said:

A random-orbit "DA" sander will give you a uniform swirly finish.  Finer finish just takes finer grits.  Lots of machinery parts are finished that way.

The actual finish is something I need to figure out.  I wouldn't want a mirror finish because I don't want the sun blasting into my eyes, but the fine lines are going to do that a little bit as well.  Which way would I want the lines/grain to orient in order to limit that?

wearymicrobe
wearymicrobe PowerDork
4/29/21 3:13 p.m.
Trent said:

There has to be a wish quality level version of this by now

https://www.eastwood.com/eastwood-contour-sct.html

 

Rotating scotch Brite pad. What they use to put the grain back on a DeLorean 

Man I need one of those things but the consumables are bonkers expensive and I have no idea how long they last. If you got two cars worth of stripping out of it all in. If its swap it out every two panels then no. 

wearymicrobe
wearymicrobe PowerDork
4/29/21 3:16 p.m.
TVR Scott said:

A random-orbit "DA" sander will give you a uniform swirly finish.  Finer finish just takes finer grits.  Lots of machinery parts are finished that way.

Wanted to add this is how I would do it. you can cut red and green 3m pads to fit or use the 80 grit mesh that they use for drywal and you would be done in a few hours with a decent brushed finish. With a 320 grit follow it would look really good. then protect it with what ever you want. 

 

FYI that is how I used to clean the bottoms of pots that were burned on the bottom or top beyond recognition. Works great stripping grease baked into cake trays as well. 

preach (fs)
preach (fs) HalfDork
4/29/21 3:20 p.m.

Scotchbrite makes a silver pad that I believe is polish only.

wearymicrobe
wearymicrobe PowerDork
4/29/21 3:49 p.m.
preach (fs) said:

Scotchbrite makes a silver pad that I believe is polish only.

I think the lightest they go is 2000 grit. I have used the 800/1000 grit to knock down shiny paint on cars tat I want to patina back after doing a rust repair

preach (fs)
preach (fs) HalfDork
4/29/21 3:55 p.m.
wearymicrobe said:
preach (fs) said:

Scotchbrite makes a silver pad that I believe is polish only.

I think the lightest they go is 2000 grit. I have used the 800/1000 grit to knock down shiny paint on cars tat I want to patina back after doing a rust repair

I've used red to make swirls on an aluminum tool box and love brown for hand cleaning small parts. I do not know the equivalent grits to colors though.

 

Streetwiseguy
Streetwiseguy MegaDork
4/29/21 5:48 p.m.

That gets a coat of Rustoleum in my world.  Too rough to be pretty, and if it were pretty, it would be way too shiny.  Forest green.

ShawnG
ShawnG UltimaDork
4/29/21 6:19 p.m.

Alumiprep 33 and scotchbrite.

After that I would paint it with Argent Silver steel wheel paint and tell everyone it's raw aluminum.

Robbie (Forum Supporter)
Robbie (Forum Supporter) MegaDork
4/29/21 10:13 p.m.

Which way to orient grains to limit sun blasting your eyes?

Perpendicular to your polarized sunglasses, of course.

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