OzVMX Forum

Clubroom => Tech Talk => Topic started by: paul on October 18, 2012, 05:51:31 pm

Title: how do you remove anodise
Post by: paul on October 18, 2012, 05:51:31 pm

got a gold alloy rear sprocket and i want to remove the gold anodise ,how do you do it ?

Title: Re: how do you remove anodise
Post by: cyclegod on October 18, 2012, 06:00:21 pm

I've heard oven cleaner does the trick.

Title: Re: how do you remove anodise
Post by: YZ250H on October 18, 2012, 06:03:17 pm

Alibrite from Supercheap, but don't get it on yourself and wear safety glasses.

Title: Re: how do you remove anodise
Post by: flower pot racing on October 18, 2012, 06:19:44 pm

take it to an anodisers and get them to reverse it.

Lot of effort for a sprocket.

Surely buy a new one.......?

Title: Re: how do you remove anodise
Post by: oldfart on October 18, 2012, 06:51:01 pm

I use this method ....use a phosphoric acid bath at about 20 precent phosphoric acid to 80 precent water (1 gal. of acid to 4 gal. of water ratio) heat liquid to 190 degrees. then submerge part depending on size for 1 to 3 minutes.

I'm a anodizing line operator

Justin Ridenbaugh
- Newark, Ohio

I also use citric acid to clean rims

Oven cleaner is Caustic based ....

Title: Re: how do you remove anodise
Post by: Noel on October 18, 2012, 08:32:43 pm

Caustic soda, (read Draino )

will remove anodising, your call !!!!.

Noel

Title: Re: how do you remove anodise
Post by: firko on October 18, 2012, 09:46:46 pm

Quote

Caustic soda, (read Draino ) will remove anodising, your call !!!!.

I learned that one the hard way when I mistakenly (don't ask ) used garage floor cleaner (caustic) to remove some rock hard mud'n'stuff from my wheels. The result wasn't pretty.