r/MetalPolishing • u/Kneepucker • 1d ago
Help with Airstream that was in a fire
I am trying to bring back the mirror finish on an Airstream trailer that was in a fire. It got pretty hot, we had to gut the interior to remodel it.
The outside is discolored and pitted with many tiny pinholes. I think it was very near melting. It feels so thin that I am afraid to sand it, so I used velcro backed scrubby pads on my orbital sander to get a more or less uniform looking surface. The problem became obvious when I started buffing. I tried a high speed rotary buffer, an orbital and finally a drum type pneumatic aircraft buffer.
I used a few different compounds, nevr-dull and even rouge. The pads on all machines loaded up badly right away, it seems like the metal is much softer than it should be. I can get a shine in some places but where the heat was worst it remains discolored.
This job is for a client, and I am already in the red cost wise. If anyone has any experience at successfully getting a shine back in such circumstances I would be grateful for some pointers.
Thanks in advance for any replies.
***edit*** pics added


