Results 1 to 14 of 14
  1. #1
    Join Date
    Nov 2009
    Location
    Halifax, Nova Scotia, Canada
    Posts
    1,974

    Default Building Boxes: Any Special Treatment of Knots?

    I'm wondering what advice you might have for treatment of knots when building gear. Some of the wood I have is pretty knotty, but they're sound. Do you just paint them, or do you have a particular approach to keeping them solid?

    Thanks,

    Adam

  2. #2
    Join Date
    May 2009
    Location
    Flora,IL
    Posts
    2,644

    Default Re: Building Boxes: Any Special Treatment of Knots?

    work the paint in good, spakel with construction adhesive before paint if in doubt.

  3. #3
    Join Date
    Dec 2006
    Location
    St. Albans, Vermont
    Posts
    5,375

    Default Re: Building Boxes: Any Special Treatment of Knots?

    When you cut up the wood, keep knots away from edges and ends of pieces. Milling and assembly will be much easier.

  4. #4
    Join Date
    Feb 2011
    Location
    Lake County, Indiana
    Posts
    82

    Default Re: Building Boxes: Any Special Treatment of Knots?

    I like the construction adhesive idea. I usually put a good coat of Titebond III on the knots before priming and painting.

  5. #5
    Join Date
    May 2012
    Location
    Rockford, MI
    Posts
    2,588

    Default Re: Building Boxes: Any Special Treatment of Knots?

    Definately (use good quality) primer then paint two coats. Typically they will not fall out unless the are loose from the start.
    Loose ones... Titebond glue.

  6. #6
    Join Date
    Jan 2013
    Location
    Midland, MI
    Posts
    577

    Default Re: Building Boxes: Any Special Treatment of Knots?

    I tried to trim away knowts when ripping boards down and avoid getting them on the cut ends, so that assembly would be easier. The knotted areas soak up a lot more paint, so i just kept applying paint until they wouldn't soak up any more. I like the idea of squishing in some glue before painting. I wish i would have done that.

  7. #7
    Join Date
    Jan 2005
    Location
    souris, manitoba, canada
    Posts
    758

    Default Re: Building Boxes: Any Special Treatment of Knots?

    hot glue gun fixes them pretty good

  8. #8
    Join Date
    Jun 2012
    Location
    Bloomfield,KY
    Posts
    279

    Default Re: Building Boxes: Any Special Treatment of Knots?

    A friend of mine staples screen over large knots he thinks may come loose.
    "Of all God's creatures, only the honeybee improves its environment and preys on no other species."--Haydon Brown

  9. #9
    Join Date
    May 2010
    Location
    Spokane, Washington, USA
    Posts
    720

    Default Re: Building Boxes: Any Special Treatment of Knots?

    We cut all knots out andf make select boxes. Sometimes we let small knots go but we knock them out or drill them out. We use bondo(the stuff for cars) to fill.

  10. #10
    Join Date
    Feb 2006
    Location
    Massillon, Ohio
    Posts
    3,406

    Default Re: Building Boxes: Any Special Treatment of Knots?

    If I come across gaps around the knots I'll mix some Titebond III with sawdust from my table saw and work it into a paste-like consistency . Then press it into the gaps. After curing, sand it smooth and paint. It makes an excellent fill and bonds the knot to the rest of the board.
    To everything there is a season....

  11. #11
    Join Date
    Jan 2009
    Location
    Grosse Ile, Michigan, USA
    Posts
    2,863

    Default Re: Building Boxes: Any Special Treatment of Knots?

    The larger knots that look like they might loosen up I will coat them with Titebond III from both sides before painting. John

  12. #12
    Join Date
    May 2011
    Location
    Campbell, Wyoming USA
    Posts
    425

    Default Re: Building Boxes: Any Special Treatment of Knots?

    Like others have said, I prefer elmers wood working glue, but yeah I slather a bunch of glue on the knots on the outside of the box, my bees tend to cap them off on the inside with propolis (maybe due to their rough texture?) and then just paint over when the glue dries. Make sure I get a good coating of paint on them is all. Haven't had any problems since.
    We the willing have done so much with so little for so long we can now do anything with nothing

  13. #13
    Join Date
    Feb 2013
    Location
    Brunswick, New York, USA
    Posts
    11

    Default Re: Building Boxes: Any Special Treatment of Knots?

    oil based or latex paint?????

  14. #14
    Join Date
    Jan 2013
    Location
    Midland, MI
    Posts
    577

    Default Re: Building Boxes: Any Special Treatment of Knots?

    I used latex, as this is what I had on hand, but while looking through old posts, I found comments in a few places indicating that the use of oil based was fine. I think the oil based is overlooked becasue there are no monetary savings, and it is harder to clean up, requiring chemicals, also if sprayed, it nearly always requires a thinner to be used. Furthermore, Home depot doesn;t havea shelf of "oops" oil paints

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Ads