"larsen-tools" wrote in message
news:xbgRb.4176$F15.1350@fed1read06...
I'm trying to figure out the "priming problem."

I took the SportAir course on RV assembly and it is well worth the time &
money. It's intended to get us beginners ready to build an empenage.
Priming was briefly outlined, as follows......
1- pull the plastic & clean the metal w/ MEK
2- use Alumiprep #32
3- use Alodine #1201
4- use AKZO fast drying interior epoxy primer (that's what it's called in
Aircraft Spruce catalog at $111 for the 2 gal kit and $50 for the thinner)
Oh, and don't breath any of this stuff or get it on your skin..... or you
will die a horrible death.


Alodine for an RV skin is probably overkill because the skins are already
coated with a thin layer of pure aluminum, which is in itself a hedge
against corrosion. Schumacher and Annick built their RV-8 on the teevy
without Alodine, which being hexavalent chromium is nasty toxic stuff. (See
Erin Brockovich for details.) I use Alodine, but not on Alclad.