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Dents in VS Skin from flush set..... ARGGGGGHHHHHH

 
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tjennings07(at)gmail.com
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PostPosted: Sun May 20, 2018 6:05 pm    Post subject: Dents in VS Skin from flush set..... ARGGGGGHHHHHH Reply with quote

Alright,  I was making great progress and then used my non dominant hand to rivet the second side of the VS skin and managed to make about 6 dents in the skin along the front spar before I realized the poor form and consequent mistake.  They are absolutely noticeable.  In a "done is better than perfect" moment I kept riveting once I was cooled off about the mistake so that I would have a finished part.  Now I am looking for a filler that I can use to make the dents go away before I drill out all the rivets and try a second time with a NEW skin.  Is there anyone out there or "has a friend" who has made a mistake like this before and lived to tell the tale while using a filler that has stood the test of time?  I have lots of experience with Bondo from my motorcycle painting days and know it is NOT up to this task.  Flex/expand/contract/vibrate, all things that would separate brittle Bondo from the skin making it unsuitable for this task.  I am hopeful there is a better product out there for aviation before I crack out the drill and try my hand at a second skin?  

Thanks,Tim


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brian.lester(at)gmail.com
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PostPosted: Sun May 20, 2018 6:24 pm    Post subject: Dents in VS Skin from flush set..... ARGGGGGHHHHHH Reply with quote

Leave it be, at least for now.
At least that was my decision when I had some “imperfections”. Don’t worry about fixing dents if it’s just a surface imperfection. Build on and learn from it.
When you get to final assembly (or close to it) look at it again with a fresh set of eyes and decide if you need a new skin or if epoxy and micro is fine. (Heck if you get it painted ask he shop to make it look better if you are concerned. )

Just my 2 cents.

-Brian
On Sun, May 20, 2018 at 10:09 PM Tim Jennings <tjennings07(at)gmail.com (tjennings07(at)gmail.com)> wrote:

Quote:
Alright,  I was making great progress and then used my non dominant hand to rivet the second side of the VS skin and managed to make about 6 dents in the skin along the front spar before I realized the poor form and consequent mistake.  They are absolutely noticeable.  In a "done is better than perfect" moment I kept riveting once I was cooled off about the mistake so that I would have a finished part.  Now I am looking for a filler that I can use to make the dents go away before I drill out all the rivets and try a second time with a NEW skin.  Is there anyone out there or "has a friend" who has made a mistake like this before and lived to tell the tale while using a filler that has stood the test of time?  I have lots of experience with Bondo from my motorcycle painting days and know it is NOT up to this task.  Flex/expand/contract/vibrate, all things that would separate brittle Bondo from the skin making it unsuitable for this task.  I am hopeful there is a better product out there for aviation before I crack out the drill and try my hand at a second skin?  

Thanks,Tim


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Kellym



Joined: 10 Jan 2006
Posts: 1549
Location: Sun Lakes AZ

PostPosted: Sun May 20, 2018 6:34 pm    Post subject: Dents in VS Skin from flush set..... ARGGGGGHHHHHH Reply with quote

Very good advice. I believe one filler that will work is "Superfill",
which is a mix of epoxy resin and high percentage of micro-balloons.
Available at AC Spruce and similar vendors.

On 5/20/2018 7:21 PM, Brian Lester wrote:
Quote:
Leave it be, at least for now.
At least that was my decision when I had some “imperfections”. Don’t
worry about fixing dents if it’s just a surface imperfection. Build on
and learn from it.
When you get to final assembly (or close to it) look at it again with a
fresh set of eyes and decide if you need a new skin or if epoxy and
micro is fine. (Heck if you get it painted ask he shop to make it look
better if you are concerned. )

Just my 2 cents.

-Brian
On Sun, May 20, 2018 at 10:09 PM Tim Jennings <tjennings07(at)gmail.com
<mailto:tjennings07(at)gmail.com>> wrote:

Alright,  I was making great progress and then used my non dominant
hand to rivet the second side of the VS skin and managed to make
about 6 dents in the skin along the front spar before I realized the
poor form and consequent mistake.  They are absolutely noticeable.



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Dave Saylor



Joined: 11 Jan 2015
Posts: 126
Location: GILROY, CA

PostPosted: Sun May 20, 2018 9:44 pm    Post subject: Dents in VS Skin from flush set..... ARGGGGGHHHHHH Reply with quote

+1 for superfill.  It's the "Cadillac of Bondo".  Only downside is that it takes a lot longer to cure than polyester--count on at least several hours.

Those dents are like the first door ding on a new car.  They hurt the worst but it you'll get past it.  Learning how to fix the mistake is pretty valuable.
--Dave
On Sun, May 20, 2018 at 7:02 PM, Tim Jennings <tjennings07(at)gmail.com (tjennings07(at)gmail.com)> wrote:
Quote:
Alright,  I was making great progress and then used my non dominant hand to rivet the second side of the VS skin and managed to make about 6 dents in the skin along the front spar before I realized the poor form and consequent mistake.  They are absolutely noticeable.  In a "done is better than perfect" moment I kept riveting once I was cooled off about the mistake so that I would have a finished part.  Now I am looking for a filler that I can use to make the dents go away before I drill out all the rivets and try a second time with a NEW skin.  Is there anyone out there or "has a friend" who has made a mistake like this before and lived to tell the tale while using a filler that has stood the test of time?  I have lots of experience with Bondo from my motorcycle painting days and know it is NOT up to this task.  Flex/expand/contract/vibrate, all things that would separate brittle Bondo from the skin making it unsuitable for this task.  I am hopeful there is a better product out there for aviation before I crack out the drill and try my hand at a second skin?  

Thanks,Tim


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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?RV10-List

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