Repairing/Filling in knots and cracks
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- This topic has 4 replies, 4 voices, and was last updated 9 years, 7 months ago by andyingermany.
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12 September 2014 at 5:24 pm #81151
Hi,
I’m looking for advise as to when to repair or fill the knots/cracks?I bought framing lumber for my workbench build and there are plenty of knots to repair on the apron pieces and some minor ones on the laminated tops.
I began planing my pieces and had some minor issues on the laminated bench top.
This week I began work on my first laminated apron and am finding it hard to get beyond the knots at times. Unfortunately some are fairly large and deep.1) Is it standard practice to fill them before or after you begin planing the surfaces?
2) Is epoxy a good way to do the repairs? If not, what else works will work.Thanks,
Marilyn13 September 2014 at 11:51 am #83098It all depends on the knot or crack and the project. These imperfections, I call “warts”, can enhance a project.
So if the wart is going in a jewelry box or a finished furniture project, I tend to show them off.
If they are going to be part of a more functional project like a workbench, I try to place them out of the way.
Whatever the case, you need to stabilize the wart and initially I use CA glue aka Super Glue. Then if I want it filled, I will use 5 min epoxy. I don’t always want it filled depending on the piece.
Generally, I will stabilize it, plane it, fill it (if I am going to fill it) then scrape it then sand it if I need too.
13 September 2014 at 2:29 pm #83149@pheasantww, Brett, thanks for the advice. I’ll give this a try.
Marilyn17 September 2014 at 8:25 pm #90365At work we use a material called ‘Kitt’ which is mixed with sawdust and used as a putty. I’m not mad keen on using spirit-based stuff like this but it does work: you end up with a tough fill that matches the surrounding wood and which you can sand down.
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