Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Results 1 to 10 of 10

  1. #1
    grosbeak's Avatar
    Join Date
    Dec 2010
    Location
    Ottawa, ON, CANADA
    Posts
    1,053
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    Patching damaged sheeting - a brief tutorial

    While repairing a badly damaged wing I've had several opportunities to patch holed sheeting. Here's my process.

    1. Mark a simple geometric shape around the damaged area




    2. Trim away the excess balsa, beveling the cut in the process




    3. Using the side of a pencil lead, shade the opening onto a piece of paper




    4. Take a minute to check the required grain direction for your patch

    MAAC 83386
    Stetson Flyers, Ottawa
    G-RSBK

  2. #2
    grosbeak's Avatar
    Join Date
    Dec 2010
    Location
    Ottawa, ON, CANADA
    Posts
    1,053
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    5. Trace the outline onto the patch




    6. Cut out the patch




    7. Bevel the bottom edges of the patch



    MAAC 83386
    Stetson Flyers, Ottawa
    G-RSBK

  3. #3
    grosbeak's Avatar
    Join Date
    Dec 2010
    Location
    Ottawa, ON, CANADA
    Posts
    1,053
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    8. Glue the patch in place




    9. Secure the patch while it's curing






    10. Once it's cured, sand the patch flush if necessary.

    MAAC 83386
    Stetson Flyers, Ottawa
    G-RSBK

  4. #4

    Join Date
    Jul 2002
    Location
    Brockton, MA
    Posts
    3,917
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    Hmmm, thanks for the tip on using the bevel. I always put support strips on the bottom of the existing sheeting instead. I like your idea better.

    What do you use for glue? I personally would use yellow glue for something like that so that it would be easy to sand and blend with the top sheeting afterwards.

    Thanks again for the tip,

    Bob
    Club Saito #61 Cub Brotherhood #107
    Spitfire Brotherhood #143
    Kadet Brotherhood #3

  5. #5
    countilaw's Avatar
    Join Date
    Jan 2012
    Location
    Grand Prairie, TX
    Posts
    1,075
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    A steam iron will pull those scratches out of the rest of the sheeting too.

    Frank
    AMA #5810
    CPA # 73
    Contest Director
    AMA Introductory Flight Instructor

  6. #6
    grosbeak's Avatar
    Join Date
    Dec 2010
    Location
    Ottawa, ON, CANADA
    Posts
    1,053
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    Bob - I use Lee Valley cabinetmaker's glue 2002 GF with their dripless glue bottle. I've used it for years and it's easy to work with.

    Frank - Thanks for the tip!
    MAAC 83386
    Stetson Flyers, Ottawa
    G-RSBK

  7. #7

    Join Date
    Jul 2002
    Location
    Brockton, MA
    Posts
    3,917
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    Grosbeak, Thanks for that. I order from Lee Valley once in a while...
    Club Saito #61 Cub Brotherhood #107
    Spitfire Brotherhood #143
    Kadet Brotherhood #3

  8. #8
    grosbeak's Avatar
    Join Date
    Dec 2010
    Location
    Ottawa, ON, CANADA
    Posts
    1,053
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    Next steps...

    Mix some Deluxe Materials Model Lite filler with water to create a paste just a little thicker than water.



    Apply some filler to a palette knife and dab it into the cracks.



    Flatten it out with the palette knife.



    Note that this mixture sets well and is very easy to sand, so applying a little extra is no big deal.

    A couple of other products I'm using, both from Lee Valley Tools:

    35K09.10 - Set of 12 Palette Knives in Case
    99W73.38 - Sanding Sponge Assortment, pkg. of 10
    MAAC 83386
    Stetson Flyers, Ottawa
    G-RSBK

  9. #9
    Moderator daveopam's Avatar
    Join Date
    Oct 2002
    Location
    ELK CITY, OK
    Posts
    7,048
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    I do mine much the same except for the last step. I like to sand with a T bar and fine paper till the cracks fill in with saw dust. Then touch it with thin CA using an aplicator nozzle and imediately wipe with a paper towel. Sometimes this process has to be repeated several times to build it up level. It is a little more time consuming than using filler. But it is much stronger. Especially if one side of your patch in next to a rib where a bevel cant be cut. This side can be glued with med CA and the other sides done as described above.

    Great job with the description and pics Grosbeak!


    david
    I never want to see a crash. But I don't want to miss one either.

  10. #10
    grosbeak's Avatar
    Join Date
    Dec 2010
    Location
    Ottawa, ON, CANADA
    Posts
    1,053
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Patching damaged sheeting - a brief tutorial

    As mentioned, this filler is very easy to sand.



    It did a great job filling the gap on the patch, and it fills small scratches very well too.

    MAAC 83386
    Stetson Flyers, Ottawa
    G-RSBK


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -6. The time now is 12:59 AM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.