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  #1  
Old 11-13-2011, 8:03 PM
royrapoport royrapoport is offline
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Default Finishing an Aluminum 80% Receiver

Quick question, y'all:

We're thinking of getting into the 80% game, a few friends of mine and I. We could get an unfinished 80% receiver, or an 80% receiver that's already been hard-anodized for about $10 more.

However, once we complete the receiver, we'll have taken out a bunch of material, and need to deal with how to protect the newly-exposed unanodized surfaces.

What are most people out there doing? Ignoring it? Doing home anodizing? Powdier coating? Something else? Any concern with some finishes changing the dimensions of the lower in unfortunate ways?

Last edited by royrapoport; 11-13-2011 at 8:05 PM..
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  #2  
Old 11-13-2011, 8:12 PM
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ElvenSoul ElvenSoul is offline
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Well there is Paint and this stuff

http://www.midwayusa.com/product/707...metal-touch-up

sometimes it works..and well sometimes it.....
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  #3  
Old 11-13-2011, 8:52 PM
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incredablehefey incredablehefey is offline
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Quote:
Originally Posted by royrapoport View Post
... and need to deal with how to protect the newly-exposed unanodized surfaces....
Protect it from what?

i have a few 80%'s that a have been using for some time now that are bare aluminum and they work fine. I personally like having the bare metal showing so that there is no question that i made them and they never had a serial number.
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Old 11-13-2011, 8:56 PM
NorCalDustin NorCalDustin is offline
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Originally Posted by incredablehefey View Post
Protect it from what?

i have a few 80%'s that a have been using for some time now that are bare aluminum and they work fine. I personally like having the bare metal showing so that there is no question that i made them and they never had a serial number.
Hmmm... Well, the anodizing process hardens the metal and perhaps over the course of its long life the trigger/hammer pins will wear. Some people say that the anodizing process helps to prolong the effects of such wear when compared to bare metal.
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Old 11-13-2011, 10:16 PM
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if your really worried about that get non rotating pins, but as far as im concerned it is a non issue
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Old 11-13-2011, 11:45 PM
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aluminum has a very unique process that the outer surface nearly instantly bonds with oxygen and makes its own micro layer of hardness

also that the pocket containing the trigger and hammer neither of those parts rotate more than 45 degrees if you are worried use a bit if grease
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Old 11-14-2011, 7:26 AM
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Nathan Krynn Nathan Krynn is offline
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Quote:
Originally Posted by royrapoport View Post
Quick question, y'all:

We're thinking of getting into the 80% game, a few friends of mine and I. We could get an unfinished 80% receiver, or an 80% receiver that's already been hard-anodized for about $10 more.

However, once we complete the receiver, we'll have taken out a bunch of material, and need to deal with how to protect the newly-exposed unanodized surfaces.

What are most people out there doing? Ignoring it? Doing home anodizing? Powdier coating? Something else? Any concern with some finishes changing the dimensions of the lower in unfortunate ways?
Just paint it or leave it be.

In order to anodize a lower that is all reayd anodized you would need to strip it and that would open all the holes up anyway so that is a horrible option.
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  #8  
Old 11-14-2011, 8:35 AM
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Lostsheep Lostsheep is offline
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Quote:
Originally Posted by royrapoport View Post
need to deal with how to protect the newly-exposed unanodized surfaces.

What are most people out there doing? Ignoring it? Doing home anodizing? Powdier coating? Something else? Any concern with some finishes changing the dimensions of the lower in unfortunate ways?
I have done all three: home anodized, paint, and left the fcg pocket raw aluminum. All of them still work just fine. Aluminum will oxidize, but it's really not an issue unless you are constantly getting it wet and letting it dry or otherwise subjecting it to some nasty environment (don't take it surfing with you). In the future I will either be buying pre-anodized 80's or painting them. I can't do type III at home and the $200 spent on all of the buckets, chemicals, and hot plates would have been better spent on two more lowers and a rattle can.
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Old 11-14-2011, 10:09 AM
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Do not worry about it... You will have NO ISSUES with a non anodized, coated pocket. Enjoy, shoot, repeat...
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  #10  
Old 11-14-2011, 10:18 AM
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Quote:
Originally Posted by bohoki View Post
aluminum has a very unique process that the outer surface nearly instantly bonds with oxygen and makes its own micro layer of hardness

also that the pocket containing the trigger and hammer neither of those parts rotate more than 45 degrees if you are worried use a bit if grease
This!
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  #11  
Old 11-14-2011, 6:10 PM
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(don't take it surfing with you) ...
Wait ... what ... I can't ... BUMMER dOOD!
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