|04-21-2013 10:58 AM|
|04-21-2013 10:07 AM|
Stroker, I was a member of the Piston Pushers down there years ago!
And had my horses at Circle K Ranch in the 60s!
We used Alodine on the Rolls Royce Parts when I was at "Antique Motor Car" (Plymouth Mich) in the 70s and then used Zinc oxide.
|04-21-2013 08:10 AM|
I'd love to know because alodine is such a PITA in some area's, and they're too cheap at work to buy the no rinse alodine markers.
|04-20-2013 11:38 PM|
Another A+P here, not all auto paints stick well to aluminum. Aircraft grade aluminum should not be sanded like auto sheet metal. Aircraft aluminum is a high strengh alloy but the alloying agents lower it's ability to resist corrossion so it's clad in a very thin layer of pure aluminum. This thin layer should not be sanded to to the chance of sanding it off. This leaves a surface that is more difficult for paint to stick to. Old school ways was alodine followed by a coat of zinc cromate primer. Now days there are various epoxy primers for the job. Also todays aircraft paints are much more resistent to chemical attack. This is more important than you might think on an airplane.
Saying this I've seen several light aircraft painted with centari, delstar or what have you. Once you step up from puddle jumpers imron is about the only thing automotive paint that is likey to be found on an airplane. With all the extra work involved with painting an aircraft not using a paint that is up to the task is false economy.
|04-20-2013 11:35 PM|
Got me wondering because most planes are aluminum and most cars aren't,if that alone makes a difference in the kind of primers??.
Former Opps agent Burlington Air Express.
|04-20-2013 11:11 PM|
|dogwater||OWell the way I look at it 1. He made his money by being a bank manager,the sort of person that makes me .... I wouldn't say it..... 2. This is airplane no.2 but I must admit that plane no. 1 is just a crop duster w/o the spraying gear. It kind of cool cause you can steer it into a strong headwind an make the plane just float in the air. 3. I'm the black sheep of the family, I have to plan ahead if I'm buying paint. I was wanting to be able to say, you spended way to much on paint. I used to like those ads on TV when they would push the banker looking guy into the bull ring......Damm its late, I gota go memes.|
|04-20-2013 11:01 PM|
I'm an aircraft mechanic, I typically only do touch up painting though. The criteria the paint must meet varies by the airframe manufacturer and is called out in the aircraft maintenance manual under the approved materials listing.
At work we only use one type of primer on all aircraft and that is PPG aerospace " super koropon" fluid resistant epoxy primer. There are other primers approved, but not commonly found for whatever reason. The color coat however varies based on the aircraft's owner but 90% of them use Sherwin-Williams jetglo, the rest use a variety of DuPont and ppg products.
|04-20-2013 10:11 PM|
Now that being said, when I was a PPG Rep, the paint I was representing was spect for a helicopter manufacturing company. It was an industrial line of PPG paint and the prices where not astronomical. Now, when I say that the paint wasn't astronomical in price, that doesn't mean it's cheap, it just isn't something that is way out of line in comparison to automotive refinish paints.
To answer your question, your brother's hands may be tied, if the paint spect for his aircraft is of the expensive variety, he may not have a choice...if he wants to fly the plane.
Hope this helps.
|04-20-2013 09:56 PM|
aviation primer / base coat compared to auto primer / base coat
Is their a differants between aviation an auto 2K paint ? Seems as though I pissed off my older brother telling him that he F up buying paint for his new airplane.He said that paint is expensive for his toy, but not knowing on my part that their is a diff in aviation paint I told him he needed to shop around an not buy the most expensive paint money can buy an complain about it. So can one use 2K on a plane that might go 25 thousand ft. I don't know how high it can go, but its not pressurized.