Alu corrosion protection

In that case I will restate my inquiry.
I am aware of the conventional corrosion protection regarding alu.
The top surfaces have been look after.
I am looking for a product that will protect the "bottom" of an alu
trailer.
It should be able to seep into, as well as creep in-between pieces of
alu that have been riveted. (HL) I will not take the trailer apart to get
at
the crevices. Either spray or brush on will be a good solution
The trailer is built and conventional alu protection on bottom of the
trailer can not be used.
I hope this is more precise
Regards
Udo


"HL Falbaum" wrote in message
...
Actually, the poster covers the question--stating there is no "shortcut"
to stabilizing the corrosion. It "hides" in crevices and comes out later.
The "glider deserves it" refers to the protection an intact trailer bottom
affords a glider.

Hartley Falbaum

"Udo Rumpf" wrote in message
.. .
At last some one read the post.
In an attempt to be helpful one keys in on a few words.
Udo

I believe the original post was about the bottom of the trailer instead
of the glider.

Larry



" wrote in message
:

I would only add two things to the above response. I would use an
etching solution such as Alumiprep 33 or Turco with the ScotchBrite,
rinse, then coat with Alodine, rinse and prime with a Zinc Chromate
paint before topcoating with a two part polyurethane. It's a lot of
work but your glider deserves it.

As for the shortcut solution, there are coatings which would protect
the surface but (at least for aluminium) I haven't seen anything that
would stabilize the corrosion that is already there.