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20 votes

Can 160-year-old wood still have sap?

The table top is still sipping out sap. Is this even possible from something that is 160 years old? Sure, it's definitely possible. Sap doesn't just disappear from a piece of wood because it's old. ...
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  • 12.1k
8 votes

Can 160-year-old wood still have sap?

It could be the 'reclaimed bit. By reclaiming the wood, one possibility is that they had to resaw the timbers to boards. It might have started out as 8" x 8" timber or some other large dimension. ...
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  • 15k
6 votes

What are the techniques to seal or remove sap?

This is actually a very common occurrence in woods like pine and fir. Many would suggest that you do not use these woods for reasons just like this one. If you persist then heat is the solution. Note: ...
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  • 20k
4 votes

What are the techniques to seal or remove sap?

It is said (by Bob Flexner in his book "Understanding Wood Finishes") that shellac is the best overall sealer. It can also be used between any two other finishes to prevent them from reacting with ...
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  • 1,669
3 votes

What are the techniques to seal or remove sap?

I burned my pine sign and the pitch was sealed. (The wood I used was old pine siding that I planned thin). Mineral spirits takes most of the pitch off but working at inspecting loads of wood I have ...
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  • 31
3 votes

What are the techniques to seal or remove sap?

Bowlturner's answer is really the best. When purchasing lumber from a quality lumberyard you can ask if the "resin has been set". There is a little extra heat & time applied. This would be ...
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  • 363
2 votes
Accepted

Dealing with sap on table top

Oil as planned, then seal with shellac? If shellac will stop knots bleeding through paintwork applied over it it could similarly prevent gross penetration of sap like this but only time would tell if ...
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  • 59.1k
1 vote
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Is this resin & nail hole a Bad Thing for a chopping board?

The resin pockets may not be an issue. The resins from some trees such as pine are commonly eaten (or made into hot drinks) in certain parts of the world, that's how non-toxic it can be. But without ...
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  • 59.1k
1 vote

Can 160-year-old wood still have sap?

I’m building a coffee table out of pine 12x12’s that I believe to be in the 200 year old range possibly much older. They were structural support beams in a building in the meat packing district of ...
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  • 11
1 vote

Can 160-year-old wood still have sap?

My answer is YES old wood has sap..that's what keeps me going. JK! The reason we dry kiln things is for heat.. not to dry sap particularly but to crystalize it. I understand that pine sap for instance,...
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