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capt_riney(at)yahoo.com
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 Posted: Tue Nov 04, 2008 11:47 am Post subject: Painting Ailerons with Polytone |
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I'm getting ready to put the color coat on the flaps and ailerons, and wondering what to do with aluminum torque tubes. The PolyFiber manual says Polytone may or may not stick to aluminum. If I prime the aluminum tubes and then spray with polytone will that work? How have others handled this part of the painting? Thanks.
Mark Rinehart
Kolb MkIII in Indy
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jlsk1(at)frontiernet.net
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| Posted: Tue Nov 04, 2008 3:33 pm Post subject: Painting Ailerons with Polytone |
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Mark, I covered the tubes with fabric & Painted them too with the whole
process, & it made the fabric gap seals seem like it was all just a part of
the wing. Polytone will NOT stick to aluminum. I`m sure , though, that if
you primed the tubes with epoxy primer, then sprayed polytone on top of
tacky primer, you would also be happy with the results.
Jim Kmet
MK-3C
Cookeville, TN
I don`t know who will win the election, but I do know who the losers are.
Us!
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aslsa.rng(at)gmail.com
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| Posted: Tue Nov 04, 2008 5:43 pm Post subject: Painting Ailerons with Polytone |
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My Firestar has Polytone over zinc chromate and both are peeling like a bad sunburn. My Mk III has polytone over bare aluminum with Aerothane over that. Just learned the hard way yesterday that it isn't sticking either. I didn't build either one but I've had very good luck painting aluminum parts when they are acid etched and alodined first. Just don't leave the parts in the alodine solution too long or a powdery residue can give adhesion problems, too. For some great ideas on alodining large parts go to the EAA Chapter 1000 website.
Rick
On Tue, Nov 4, 2008 at 5:33 PM, Jim <jlsk1(at)frontiernet.net (jlsk1(at)frontiernet.net)> wrote:
[quote] --> Kolb-List message posted by: "Jim" <jlsk1(at)frontiernet.net (jlsk1(at)frontiernet.net)>
Mark, I covered the tubes with fabric & Painted them too with the whole process, & it made the fabric gap seals seem like it was all just a part of the wing. Polytone will NOT stick to aluminum. I`m sure , though, that if you primed the tubes with epoxy primer, then sprayed polytone on top of tacky primer, you would also be happy with the results.
Jim Kmet
MK-3C
Cookeville, TN
I don`t know who will win the election, but I do know who the losers are. Us!
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slyck(at)frontiernet.net
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| Posted: Wed Nov 05, 2008 4:57 am Post subject: Painting Ailerons with Polytone |
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Degreasing is the most important step. An industrial detergent, not dish soap.Second, a scuffing with either 400 paper or scotchbrite pad.
Third, a light coat with rustoleum automotive spray can primer will do.
Never let any primer sit and get hard for more than a few days or you will have to at least re-scuff it.
BB, MkIII, no peels, no flakes.
On 4, Nov 2008, at 8:42 PM, Richard Girard wrote:
[quote]My Firestar has Polytone over zinc chromate and both are peeling like a bad sunburn. My Mk III has polytone over bare aluminum with Aerothane over that. Just learned the hard way yesterday that it isn't sticking either. I didn't build either one but I've had very good luck painting aluminum parts when they are acid etched and alodined first. Just don't leave the parts in the alodine solution too long or a powdery residue can give adhesion problems, too. For some great ideas on alodining large parts go to the EAA Chapter 1000 website.
Rick
On Tue, Nov 4, 2008 at 5:33 PM, Jim <jlsk1(at)frontiernet.net (jlsk1(at)frontiernet.net)> wrote:
[quote]
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