Tech tip

[JLW4291]

Alright I thought I would share what I use to deanodize parts. Some of you may


be familiar with this already. I get the product from Dollar store and I buy the big jugs. Price $4.00 a jug Greased Lightning

 

[Guest]

Yep, the Greased Lightning is good stuff. Not as toxic as oven cleaner.

 

[rampage idiot]

What is greased lightning made for ? I personally have never used it

 

[Guest]

It's a concentrated cleaner / degreaser.

 

[Michaels12]

More than likely it is dilute sodium hydroxide, but that's just a guess....

Simple Geen, Purple power, and Castrol degreaser are some others that utilize sodium hydroxide as the active ingredient.

It will also work at an excellerated rate if you bring it to about 160-180 deg F.

Use caution as it can cause severe eye injury or blindness.....

 

[rampage idiot]

Wow thanks

 

[rampage idiot]

How long do you leave the parts in ? How do you know when they are done and what happens if you leave them in too long?

 

[Michaels12]

Time varies, it depends on the surface treatment and the alloy.

If the part is left too long and there is sufficient chemical concentration, the part could actually dissolve.

This is an old process that was referred to as chem-mill.

You can actually select areas to reduce by masking or exposing different areas according to where you desire to remove material.

There are many possibilities if its well planned with the correct alloy.

 

[JLW4291]

Just put the parts in and the blue will start to come off. Watch the solution and it should show tiny bubbles if they stop change out fluid. when they are done they will turn dark grey. Take them out and wash with dishsoap and warm water. I have left them for a while it depends on how good the anodize is as to how long.

 

[Michaels12]

More on this .... Quite interesting

http://en.m.wikipedia.org/wiki/Chemical_milling

 

[RampageHopUps]

We use chemical milling in the Aerospace industry for all kinds of parts. Also called chem-etch. A lot of antennas and RF circuitry are made that way with .005 brass or copper.

 

[Sergio1]

Alright I thought I would share what I use to deanodize parts. Some of you may be familiar with this already. I get the product from Dollar store and I buy the big jugs. Price $4.00 a jug Greased Lightning

I got mine at kmart the little bottle For like 6 bucks guess i got screwed, i used it to clean my air filter too and came out like new.