Reply To: Knots
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Hi Dave,
I tend to try and avoid using knotted timber whenever possibly, but this isn’t always possible, so – if presented with knotty timber – I tend to flood knots using superglue & accelerator, or straight wood glue. Once the glue has cured (Normally overnight) I then process the board/billet asap.
If dealing with live knots I tend to seal them using a knotting solution made up from a dilute cut of shellac. This is sufficient to seal the knot against shrinkage and prevent bleed through is applying a painted finish. 🙂
Always try and used freshly sharpened plane irons/chisel blades when dealing with knots and you’ll tend to acquire trouble free end results. Tear out can be flooded using superglue and scraped to a clean finish level with the surrounding surface. 😉
Superglue sometimes goes cloudy when set. Not too much of a problem if painting, but a definite problem if applying a clear finish. Cloudiness is readily removed by applying a second dab of superglue, which temporarily dissolves the existing glue before re-setting clear. 🙂