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  #11  
Old 09-28-2022, 08:03 PM
PaulvS's Avatar
PaulvS PaulvS is offline
 
Join Date: Aug 2019
Location: Western Australia
Posts: 1,290
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Quote:
Originally Posted by mfleming View Post
I appreciate everyones input.

The reason for applying the epoxy primer is not for final paint...it's sole function is to protect the fiberglass from oil and dirt until it makes it to the painters...they'll sand it off and do whatever it takes to make it pretty.

My question was/is, do you think what's on there will protect it from oil/dirt?

And since my original post, I sprayed another coat of primer...
Do I think what's on there will protect from oil/dirt? Nope, because there are visible voids that can trap oil/dirt.

How long will you be flying it before your paint slot, i.e. not at all; phase 1; 12 months? That may influence how much protection you need.
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Paul vS (yes I'm also a Van)
Building RV-6A #22320 O-320 FP. Wings and tail complete, fuselage almost done, working on canopy.
Flying my Aeroprakt A-22 STOL and the aero club's RV-9A while I build
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  #12  
Old 09-28-2022, 08:19 PM
mfleming's Avatar
mfleming mfleming is offline
 
Join Date: Sep 2016
Location: Joseph, Oregon
Posts: 991
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Quote:
Originally Posted by Bandera View Post
No reason to back to bare unless the the surface was never sanded.
The surface was completely sand...too much so in some areas.


Quote:
Originally Posted by PaulvS View Post
Do I think what's on there will protect from oil/dirt? Nope, because there are visible voids that can trap oil/dirt.

How long will you be flying it before your paint slot, i.e. not at all; phase 1; 12 months? That may influence how much protection you need.
The hope is that I can get it into the paint shop shortly after it flies...

Since the photos, I added a second coat...
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Michael Fleming
Joseph, OR
sagriver at icloud dot com

RV-7 Slider #74572
Started 11/2016
Empennage completed 11/2016
Ailerons and flaps completed 3/2017.
Wings completed 12/2017
Started on QB fuselage 01/2018
Sliding canopy mostly completed 10/2020
Wiring and Avionics harness completed 9/2/2021
FWF Completed 11/1/2022
Final assembly Started 11/10/2022
Wings on 11/12/2022

N526RM

Donated for 2022 and so should you

Last edited by mfleming : 09-28-2022 at 08:22 PM. Reason: add content
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  #13  
Old 09-28-2022, 09:15 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,714
Default Popcorn

Finished my popcorn. Making a new batch!
Like the man said, just trying to protect it till the paint shop.
Epoxy fiberglass needs to be protected from UV.
Enjoying my popcorn.
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Larry Larson
Estes Park, CO
E-mail: wirejock at yahoo dot com
Builder Blog: http://wirejockrv7a.blogspot.com
Donated 12/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #14  
Old 09-29-2022, 07:14 AM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
Posts: 11,074
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Quote:
Originally Posted by Bandera View Post
No reason to back to bare unless the the surface was never sanded.
The advice was to return to bare glass and shell it with epoxy, the result being a fully sealed surface...the goal here. Subsequent primer would largely be for UV protection until it can be test flown and taken to the paint shop, which seems to be the plan.

I don't think Mike is going to do it, given he is spraying more primer, so what process do you propose, and why?
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Dan Horton
RV-8 SS
Barrett IO-390
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  #15  
Old 09-29-2022, 10:53 AM
mfleming's Avatar
mfleming mfleming is offline
 
Join Date: Sep 2016
Location: Joseph, Oregon
Posts: 991
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Quote:
Originally Posted by DanH View Post
The advice was to return to bare glass and shell it with epoxy, the result being a fully sealed surface...the goal here. Subsequent primer would largely be for UV protection until it can be test flown and taken to the paint shop, which seems to be the plan.

I don't think Mike is going to do it, given he is spraying more primer, so what process do you propose, and why?
I sprayed a second coat of primer because I’m losing my window to spray outside and I wanted to do something quick.

For what it’s worth, I agree that sanding down to glass and shell with epoxy is the best option. It’s what I did on the windshield fairing and canopy skirt.

In hindsight, I should have taken the time to do that before priming. I thought it wasn’t necessary because the paint shop was going to do their magic on the cowling and all I had to do was protect it from oil and dirt.
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Michael Fleming
Joseph, OR
sagriver at icloud dot com

RV-7 Slider #74572
Started 11/2016
Empennage completed 11/2016
Ailerons and flaps completed 3/2017.
Wings completed 12/2017
Started on QB fuselage 01/2018
Sliding canopy mostly completed 10/2020
Wiring and Avionics harness completed 9/2/2021
FWF Completed 11/1/2022
Final assembly Started 11/10/2022
Wings on 11/12/2022

N526RM

Donated for 2022 and so should you

Last edited by mfleming : 09-29-2022 at 10:55 AM. Reason: Fix typo
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  #16  
Old 09-29-2022, 10:00 PM
mfleming's Avatar
mfleming mfleming is offline
 
Join Date: Sep 2016
Location: Joseph, Oregon
Posts: 991
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UPDATE: I sent current photos of the cowl to the paint shop and they were comfortable that the cowling is protected until they get their hands on it.
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Michael Fleming
Joseph, OR
sagriver at icloud dot com

RV-7 Slider #74572
Started 11/2016
Empennage completed 11/2016
Ailerons and flaps completed 3/2017.
Wings completed 12/2017
Started on QB fuselage 01/2018
Sliding canopy mostly completed 10/2020
Wiring and Avionics harness completed 9/2/2021
FWF Completed 11/1/2022
Final assembly Started 11/10/2022
Wings on 11/12/2022

N526RM

Donated for 2022 and so should you
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