Go Back  RCU Forums > RC Airplanes > Tips & Techniques
Reload this Page >

Help! Sanded a pinhole in my Kovall, gotta start over

Community
Search
Notices
Tips & Techniques Want to share a tip or special technique you have either in the workshop or at the flying field or race track? Post it right here!

Help! Sanded a pinhole in my Kovall, gotta start over

Thread Tools
 
Search this Thread
 
Old 02-19-2012, 08:52 AM
  #1  
Rv7garage
Thread Starter
My Feedback: (10)
 
Join Date: Feb 2005
Location: Somers, WI
Posts: 1,754
Likes: 0
Received 3 Likes on 3 Posts
Default Help! Sanded a pinhole in my Kovall, gotta start over

How do I remove a dope + Koverall finish and start over? Totally demoralizing day...
Old 02-19-2012, 09:12 AM
  #2  
Chip_Mull
My Feedback: (1)
 
Chip_Mull's Avatar
 
Join Date: Feb 2005
Location: Granbury, TX
Posts: 677
Likes: 0
Received 1 Like on 1 Post
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

Why not put a patch on it or finishing tapes? If you are intent on removing the covering, use MEK to soften the dope.
Old 02-19-2012, 09:52 AM
  #3  
Rv7garage
Thread Starter
My Feedback: (10)
 
Join Date: Feb 2005
Location: Somers, WI
Posts: 1,754
Likes: 0
Received 3 Likes on 3 Posts
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

'Cause the patch would be visible, and I'm on an insane quest for perfection

Thanks, I'll use the MEK. What's another 10 hours of labor? Hahahahahahahahahahahahahahahahaha.......
Old 02-19-2012, 09:57 AM
  #4  
speedracerntrixie
My Feedback: (29)
 
speedracerntrixie's Avatar
 
Join Date: Jun 2010
Location: Happy Valley, Oregon
Posts: 9,515
Received 176 Likes on 151 Posts
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

Please use the MEK outside with a mask and gloves.....................
Old 02-19-2012, 10:04 AM
  #5  
Rv7garage
Thread Starter
My Feedback: (10)
 
Join Date: Feb 2005
Location: Somers, WI
Posts: 1,754
Likes: 0
Received 3 Likes on 3 Posts
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

ORIGINAL: speedracerntrixie

Please use the MEK outside with a mask and gloves.....................

Most definitely. I have no brain cells to waste!

And then, after the removal process, I get to deal with the dope fumes again! Wheeeeeee! LOL.
Old 02-19-2012, 05:26 PM
  #6  
kenh3497
 
kenh3497's Avatar
 
Join Date: Jan 2010
Location: Rockwell, IA
Posts: 1,517
Received 2 Likes on 2 Posts
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

A patch will crash proof the plane. If the patch is on the bottom (or top for that matter) it becomes an "access panel". Put a matching patch on the opposite side. Don't let ANYBODY tell you otherwise.

Ken
Old 02-20-2012, 09:33 AM
  #7  
Michaelj2k
 
Michaelj2k's Avatar
 
Join Date: Sep 2006
Location: Newark, DE
Posts: 1,121
Likes: 0
Received 5 Likes on 5 Posts
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

Questions:
1) how large is the pinhole?
2) what did you use to attach the fabric?
3) what is the topcoat? Dope, enamel, urethanes?
4) how did you build up the dope coats? Nitrate, butyrate, color?

I don't believe that you should have to rip off the covering because of a small fault. Can you post a picture?
Old 02-20-2012, 09:36 AM
  #8  
Chip_Mull
My Feedback: (1)
 
Chip_Mull's Avatar
 
Join Date: Feb 2005
Location: Granbury, TX
Posts: 677
Likes: 0
Received 1 Like on 1 Post
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

Also, is the pinhole over a solid surface or open area? Big difference on repair!
Old 02-26-2012, 02:13 AM
  #9  
cutaway
Senior Member
 
Join Date: Jun 2007
Location: Lake Worth, FL
Posts: 1,009
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

Unless your finish is clear or translucent, a small silkspan patch will sand/feather out to the point where its virtually unnoticeable.
Old 02-26-2012, 07:18 AM
  #10  
jaka
 
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
Posts: 7,816
Likes: 0
Received 3 Likes on 3 Posts
Default RE: Help! Sanded a pinhole in my Kovall, gotta start over

Hi!
Why not use automotive 2-part paint instead of dope!?

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.