Reply by oblowme

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Posted on Sap leak through-what to do?

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91 posts in 2592 days

#1 posted 07-15-2011 03:11 PM

I use a simple but effective method for sealing knots- In the process of sanding a piece I pack the knots with a mix of stainable glue and fine wood dust, best if from the same species. You want just enough glue to hold it together and might want to cut it with a little water at first. You have to mix it up and let it set in an open container an hour or so until the dust absorbes all the water it can, adding a SMALL amount of water will speed up the process but you have to be careful as too much will weaken the glue.
If it ends up too thin add a little more glue/dust. If too thick add more glue/water but be careful with latter.
Press it into the knots, let it set 20-30 minutes and sand, apply again change grits and sand and so forth.
I discovered this by pure luck- I had a large pine table top kinda thing in the shop and never had much success sealing knots as they apparently have an unlimited storage capacity, that and they usually have several open checks and/or splits. Just for the hell of it I tried this and it worked out very well for me.

-- A TOOL JUNKIE- There, I just admited it to myself...

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