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Matt
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Matt
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What are the techniques to seal or remove sap?

For starters this is not green-wood.

I have been cutting up some 2x4 into small blocks for painting and decoration. The block were cut and then sanded. About 3 days later I had the time to paint them. Today I noticed that some sap has seeped through.

The wood was not fresh (it was from a pallet fyi.) but the cuts opened up some sections of pith it would seem.

Is there anything different I could have done to have either forced the sap out or a better sealant before I painted.