Primed Aileron Skins and Stiffeners

I alumipreped, alodined, and primed aileron parts. I also primed the right fuel tank Z brackets.


Primed Aileron Skins.

Primed Left Wing Skins and Parts

I scuffed, alumipreped, alodined, and primed the left wing skins.

Primer Man Strikes Again!

Getting ready to finish priming all leading edge and main ribs(minus the internal fuel tank ribs). It's August here in Georgia and that means extremely hot and humid temps. I must have lost 5lbs. in sweat throughout the day with the coverall suit and equipment on. Needless to say, prepping and priming is my least favorite thing to do so far.

Rattle Can Primer and Interior Paint

Here is the primer I used for the inner fuselage parts. I used two part epoxy on all the skins, but used this rattle can primer on all the bulkheads and small parts. Yes, I still scuffed and etched the parts beforehand...

You can also see the paint I used inside the fuselage and baggage areas... After a lite scuff of the primed parts, I wiped the interior with a cheese cloth, then sprayed the hammered paint. I think this will be easy to touch up places that get scratched...

Primer

I use a two-part epoxy primer from Poly Fiber for the internal wing skins and parts. It's suppose to be bullet proof and better than Zinc Cromate. You can buy the kit shown above at Aircraft Spruce for 73 bucks(yields 2 1/2 quarts) . I also used AKZO 2part. epoxy primer on the inside of the tail feathers and fuselage skins.

Rib Prep

This process seemed to take forever. After all of the ribs had been final drilled(for the spars), fluted, straighted to 90 degrees, and debured inside and out, I had to do this,Scuff and etch. But wait, before that could be done, I had to remove all of the stickers that had the labelling numbers on them. What a pain. I also had to use rubbing alcohol and a rag to get the adhesive from the stickers off the ribs. Let me say it again, what a pain! I used a scotch brite pad to scruff the inside and outside of all 28 ribs. This was followed by prepping the leading edge ribs the same way. I then took an electric pencil and lightly etched the ribs so I could see the order after I primed everything. After that, I set up shop outside and Alumipreped(acid etch) and Alodined everything. Needless to say, today was a long day. About 8hrs of work.

Priming

I primed all of the rear spar parts and cs holes from the main spars. I used a two part epoxy primer available from aircraft spruce. I then used acetone for the clean up.

Aloding the Main Spar countersinks

Getting ready to prime. I spot treated the main spar countersinks w/ Alumiprep and Alodine. Next will be the primer. Some might think the first two steps are overkill, but I call it "Peace of Mind".

Prepping skins for primer w/scotch brite pads