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Delimitation in wing area still?

 
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pastormac62



Joined: 07 Sep 2015
Posts: 50
Location: Indiana

PostPosted: Tue Jul 04, 2017 4:00 pm    Post subject: Delimitation in wing area still? Reply with quote

Hi Guys,
I experienced some delimitation in the area where you would normally step up to enter the plane on the pilot side. I drilled small wholes and injected epoxy in those areas. I have been checking and after about a month I have soft areas again. I can press on them and here the foam underneath. I've attached a couple of pics of the affected area where I masked off with tape. Any suggestions???

To our success,
Stephen McIntosh
To our success, Stephen McIntosh


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aeromomentum(at)yahoo.com
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PostPosted: Wed Jul 05, 2017 9:16 am    Post subject: Delimitation in wing area still? Reply with quote

Hi Stephen,

When you drilled small holes into the core (but not through the second skin) and injected the epoxy did the epoxy come out adjacent holes?

Mark Kettering

--------------------------------------------
On Tue, 7/4/17, <pastormac(at)comcast.net> wrote:

Subject: Delimitation in wing area still?
To: kis-list(at)matronics.com
Date: Tuesday, July 4, 2017, 7:59 PM


Hi Guys,
I experienced some delimitation in the
area where you would normally step up to enter the plane on
the pilot side. I drilled small wholes and injected epoxy in
those areas. I have been checking and after about a month I
have soft areas again. I can press on them and here the foam
underneath. I've attached a couple of pics of the affected
area where I masked off with tape. Any suggestions???

To our success,

Stephen McIntosh
To our success, Stephen McIntosh


- The Matronics KIS-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?KIS-List
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Robert Reed



Joined: 22 Oct 2009
Posts: 223
Location: Dallas/Ft.Worth

PostPosted: Wed Jul 12, 2017 8:05 am    Post subject: Delimitation in wing area still? Reply with quote

Steve,
Sorry to not reply sooner but I was baking at the hangar all last week and forgot to back check my emails.


Can you describe for us the exact steps you used for your first attempt to fix this issue. What I am suspecting is that the epoxy you used for your first repair sank down to the lowest points in the wing before it setup which would have left the voids in the same spaces. Even a micro-mix will settle if it is too thin (which I have had happen several times).
What I would suggest is to obtain several empty caulking gun tubes. Make a very thick micro-epoxy mix that is thick enough that it can only be injected using the caulking gun. Have several small holes spaced around the void area for injection. Inject into the voids until some mix is pushed out of other holes and continue until you are confident all voids have been filled. Keep the openings open until you are sure it has cured and doesn't need to expand. This thick mixture should cure well before it can settle. Clean up and fill any holes, sand, cover or paint.


Bob Reed

From: "pastormac(at)comcast.net" <pastormac(at)comcast.net>
To: kis-list(at)matronics.com
Sent: Tuesday, July 4, 2017 7:01 PM
Subject: Delimitation in wing area still?


Hi Guys,

I experienced some delimitation in the area where you would normally step up to enter the plane on the pilot side. I drilled small wholes and injected epoxy in those areas. I have been checking and after about a month I have soft areas again. I can press on them and here the foam underneath. I've attached a couple of pics of the affected area where I masked off with tape. Any suggestions???

To our success,
Stephen McIntosh
To our success, Stephen McIntosh


- The Matronics KIS-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?KIS-List
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