• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Easiest way to remove anodize
#1
So I read a lot about how to take off the anodized layer from OE trim and there are lots of ways. Some people say they just sand it.......tried that my hands hurt. Lots of forum members have used oven cleaner, tried that now my driveway has an etched spot the anodizing is 50/50 and i'd have to sand again but my hands hurt. Then I got smart, anodizing is an electrochemical process, therefore a similar process should be just as easy.
Enter the lye method, it sounds scary to call it a seriously caustic solution but that's what it is and it deserves respect but WOW it works and its easy.
Find one of two forms of lye, either powdered lye like red devil from ACE hardware (this is nasty stuff be careful) 
or
even easier go to a home improvement store and find a drain de clogger that says it will burn skin, to dilute with vinegar if contacted and generates its own heat (this is liquid lye)

This stuff will eat steel, and a lot of other things but guess what it won't eat, PVC plumbing pipe and using a piece and a cap and properly pvc welding it you can make a nice long small bath for your trim, even curved trim (just have to do it in 2 sections).

safely secure your chem tube to something and fill halfway with water, put a small amount of the lye in, like 1 oz per gallon or so, slowly fill with water again to near the top but not even to it.

Drop your trim in and the bubbling begins, keep checking on it every few minutes until it looks like bare aluminum, kinda dull.

Just a couple things to remember
USE GLOVES good ones, thick latex or vinyl
dilute any bubble over with water ( I just used a light spray from the hose as it was happening)
rinse your parts thoroughly after you pull them out before you touch them
what to do with the solution after you're done? Guess what its still drain cleaner, pour it down your drain and help clean out your pipes or make really weird looking soap.
severely dilute any spillage of the lye, solution, or bubble over with lots of water, at that point its pretty harmless.
  Reply
#2
(01-31-2018, 11:53 PM)libram Wrote: So I read a lot about how to take off the anodized layer from OE trim and there are lots of ways. Some people say they just sand it.......tried that my hands hurt. Lots of forum members have used oven cleaner, tried that now my driveway has an etched spot the anodizing is 50/50 and i'd have to sand again but my hands hurt. Then I got smart, anodizing is an electrochemical process, therefore a similar process should be just as easy.
Enter the lye method, it sounds scary to call it a seriously caustic solution but that's what it is and it deserves respect but WOW it works and its easy.
Find one of two forms of lye, either powdered lye like red devil from ACE hardware (this is nasty stuff be careful) 
or
even easier go to a home improvement store and find a drain de clogger that says it will burn skin, to dilute with vinegar if contacted and generates its own heat (this is liquid lye)

This stuff will eat steel, and a lot of other things but guess what it won't eat, PVC plumbing pipe and using a piece and a cap and properly pvc welding it you can make a nice long small bath for your trim, even curved trim (just have to do it in 2 sections).

safely secure your chem tube to something and fill halfway with water, put a small amount of the lye in, like 1 oz per gallon or so, slowly fill with water again to near the top but not even to it.

Drop your trim in and the bubbling begins, keep checking on it every few minutes until it looks like bare aluminum, kinda dull.

Just a couple things to remember
USE GLOVES good ones, thick latex or vinyl
dilute any bubble over with water ( I just used a light spray from the hose as it was happening)
rinse your parts thoroughly after you pull them out before you touch them
what to do with the solution after you're done? Guess what its still drain cleaner, pour it down your drain and help clean out your pipes or make really weird looking soap.
severely dilute any spillage of the lye, solution, or bubble over with lots of water, at that point its pretty harmless.

I have tried the oven cleaner route.  I'll have to try your method now. Thanks for sharing.

1973 H Code Convertible - Medium Copper Metallic - June 8, 1973, Built Ford Marketing Sales Vehicle
[Image: DSC_0266xsm.jpg]
[Image: satellite.png] Proud Space Junk Award Winner!












  Reply
#3
(02-01-2018, 12:34 AM)rackerm Wrote:
(01-31-2018, 11:53 PM)libram Wrote: So I read a lot about how to take off the anodized layer from OE trim and there are lots of ways. Some people say they just sand it.......tried that my hands hurt. Lots of forum members have used oven cleaner, tried that now my driveway has an etched spot the anodizing is 50/50 and i'd have to sand again but my hands hurt. Then I got smart, anodizing is an electrochemical process, therefore a similar process should be just as easy.
Enter the lye method, it sounds scary to call it a seriously caustic solution but that's what it is and it deserves respect but WOW it works and its easy.
Find one of two forms of lye, either powdered lye like red devil from ACE hardware (this is nasty stuff be careful) 
or
even easier go to a home improvement store and find a drain de clogger that says it will burn skin, to dilute with vinegar if contacted and generates its own heat (this is liquid lye)

This stuff will eat steel, and a lot of other things but guess what it won't eat, PVC plumbing pipe and using a piece and a cap and properly pvc welding it you can make a nice long small bath for your trim, even curved trim (just have to do it in 2 sections).

safely secure your chem tube to something and fill halfway with water, put a small amount of the lye in, like 1 oz per gallon or so, slowly fill with water again to near the top but not even to it.

Drop your trim in and the bubbling begins, keep checking on it every few minutes until it looks like bare aluminum, kinda dull.

Just a couple things to remember
USE GLOVES good ones, thick latex or vinyl
dilute any bubble over with water ( I just used a light spray from the hose as it was happening)
rinse your parts thoroughly after you pull them out before you touch them
what to do with the solution after you're done? Guess what its still drain cleaner, pour it down your drain and help clean out your pipes or make really weird looking soap.
severely dilute any spillage of the lye, solution, or bubble over with lots of water, at that point its pretty harmless.

I have tried the oven cleaner route.  I'll have to try your method now. Thanks for sharing.
did 2 drip channel moldings completely clean in about a half hour with no cramps. will post pics of completed rails after polish (there is sanding involved but at least not to remove the coating)
  Reply
#4
(02-01-2018, 12:39 AM)libram Wrote:
(02-01-2018, 12:34 AM)rackerm Wrote:
(01-31-2018, 11:53 PM)libram Wrote: So I read a lot about how to take off the anodized layer from OE trim and there are lots of ways. Some people say they just sand it.......tried that my hands hurt. Lots of forum members have used oven cleaner, tried that now my driveway has an etched spot the anodizing is 50/50 and i'd have to sand again but my hands hurt. Then I got smart, anodizing is an electrochemical process, therefore a similar process should be just as easy.
Enter the lye method, it sounds scary to call it a seriously caustic solution but that's what it is and it deserves respect but WOW it works and its easy.
Find one of two forms of lye, either powdered lye like red devil from ACE hardware (this is nasty stuff be careful) 
or
even easier go to a home improvement store and find a drain de clogger that says it will burn skin, to dilute with vinegar if contacted and generates its own heat (this is liquid lye)

This stuff will eat steel, and a lot of other things but guess what it won't eat, PVC plumbing pipe and using a piece and a cap and properly pvc welding it you can make a nice long small bath for your trim, even curved trim (just have to do it in 2 sections).

safely secure your chem tube to something and fill halfway with water, put a small amount of the lye in, like 1 oz per gallon or so, slowly fill with water again to near the top but not even to it.

Drop your trim in and the bubbling begins, keep checking on it every few minutes until it looks like bare aluminum, kinda dull.

Just a couple things to remember
USE GLOVES good ones, thick latex or vinyl
dilute any bubble over with water ( I just used a light spray from the hose as it was happening)
rinse your parts thoroughly after you pull them out before you touch them
what to do with the solution after you're done? Guess what its still drain cleaner, pour it down your drain and help clean out your pipes or make really weird looking soap.
severely dilute any spillage of the lye, solution, or bubble over with lots of water, at that point its pretty harmless.

I have tried the oven cleaner route.  I'll have to try your method now. Thanks for sharing.
did 2 drip channel moldings completely clean in about a half hour with no cramps. will post pics of completed rails after polish (there is sanding involved but at least not to remove the coating)

Instant Power at home depot is what I used and is lye.
  Reply
#5
That's some useful info there, thanks for sharing. I want to refinish some extra rear light pieces. I tried the oven cleaner, but a waste of time and sanding these is a real pain..... literally!
Geoff.
  Reply
#6
I will note that lye, water and aluminum will produce flammable hydrogen gas and will in the wrong proportions eat the aluminum. Don't soak parts longer than necessary and don't leave them unattended.

[Image: 1_01_07_15_8_53_18.png]

"I love my Hookers!" and "Get some Strange" probably have a different connotation to non automotive enthusiasts!
  Reply
#7
(02-01-2018, 03:46 PM)Jeff73Mach1 Wrote: I will note that lye, water and aluminum will produce flammable hydrogen gas and will in the wrong proportions eat the aluminum.  Don't soak parts longer than necessary and don't leave them unattended.

 Good info there too, kinda important!
  Reply
#8
(02-01-2018, 03:46 PM)Jeff73Mach1 Wrote: I will note that lye, water and aluminum will produce flammable hydrogen gas and will in the wrong proportions eat the aluminum.  Don't soak parts longer than necessary and don't leave them unattended.

And don't smoke while doing this.

'73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

'73 F code convertible. Bright red. Needs total restore. (IE HOT MESS)

- Jason
  Reply
#9
Aluma-Brite is cleaner available at truck stops and parts stores that cater to semi's. At about 15.00 gal. it works great But you need to respect it as it has hydroflouric acid in it. FOLLOW SAFETY INSTRUCTIONS! It will remove anodize easily
  Reply
#10
I don't know how I got the goofy imogie in the word hydroflouric acid, maybe because it's such nasty stuff. Don't get it on you, don't leave it in an unmarked container
  Reply
Share Thread:  


Possibly Related Threads...
Thread Author Replies Views Last Post
  Any pics of windshield trim clips and how to remove? vikingsandpintos 4 476 02-06-2018, 11:39 PM
Last Post: rotorr22
  How do you remove the Chrome Front Bumper on a 71? jowens1126 7 820 12-12-2017, 08:05 AM
Last Post: Omie01
  How to remove vinyl top trim? vikingsandpintos 1 403 11-12-2017, 11:19 AM
Last Post: mach1000
  How to remove paint from door and truck locks Danno 4 865 06-21-2015, 10:46 AM
Last Post: Jeff73Mach1
  Remove house paint from car? Rumbloki 9 1,171 02-02-2015, 01:12 PM
Last Post: Rumbloki



Users browsing this thread: 1 Guest(s)