Help- Corrosion?

rodcritt · #1 01-25-2009, 01:13 PM

I just pealed the plastic off my left elevator skin and this is what I found.
It is all around the edges. How do I get rid of it?

Danny7 · #2 01-25-2009, 01:47 PM

scotch brite?

rodcritt · #3 01-25-2009, 02:00 PM

I used a 1" polish wheel on the die grinder and the aluminum has pitted underneath the corrosion. It is also all along the bend of the trailing edge. I could use sand paper to get it out, then what, do I have to prime the whole interior surface of the elevator? The right side is already riveted together. Will priming one side put everyhing off balance. It is also on the outside of the skin. What do I do after cleaning that off?
A new skin is only $81.15 is that the best way to go. Am I worring to much about nothing?

Geico266 · #4 01-25-2009, 02:23 PM

How long had the blue stuff been on the skin? How old is the kit?

rodcritt · #5 01-25-2009, 02:33 PM

Quote:

Originally Posted by Geico266

How long had the blue stuff been on the skin? How old is the kit?

I bought an unstarted kit in October 2008. The kit was purchased new in July 2007. In the whole kit this is the only place I have had any corrosion. Figures as I just told the Wife "This is our last piece in this kit".
What a day wrecker this is.

Geico266 · #6 01-25-2009, 02:40 PM

The blue stuff is suppose to be removed fairly soon per Vans instructions. I would remove all of the other blue stuff and just reorder any parts you are concerned about. Cheap lesson IMHO

rodcritt · #7 01-25-2009, 03:10 PM

Quote:

Originally Posted by Geico266

The blue stuff is suppose to be removed fairly soon per Vans instructions. I would remove all of the other blue stuff and just reorder any parts you are concerned about. Cheap lesson IMHO

A very cheap lesson. I have replaced every part I didn't like so far so why start scrimping now. The wing kit will have every piece of plastic removed at inventory.
Someday (hopefully never) I may have to learn how to repair corrosion, I guess thats why I read Aircrtft Structural Technician, but not in my new plane.

Mel · #8 01-25-2009, 03:34 PM

Quote:

Originally Posted by rodcritt

Will priming one side put everything off balance. It is also on the outside of the skin. What do I do after cleaning that off?
A new skin is only $81.15 is that the best way to go. Am I worrying to much about nothing?

No; Priming one side will NOT cause a problem. And
Yes; You are worrying too much about little. Clean it up, prime it and get on with building.

Brantel · #9 01-25-2009, 04:05 PM

Scotchbrite it off and hit it with some primer and move on.

Never know it was there after that.

Captain Avgas · #10 01-26-2009, 02:54 PM

Quote:

Originally Posted by rodcritt

I just pealed the plastic off my left elevator skin and this is what I found.
It is all around the edges. How do I get rid of it?

And the guys who don't prime will tell you that Alclad won't corrode. Gee I hope this doesn't reignite the Primer War