High Tannin

[newt]

I resawed some 25mm euro oak today and there was a much stronger than usual smell of the tannin. I moistened the cut side and laid it down on a formica shelf, 15mins later I found this

I planed some off just to see how deep. The round light circle is a drop of household bleach. Anyone seen really dark blue tannin of this intensity before.

 

[TrimTheKing]

Haha, I was worried what I was going to see when I opened this thread newt, I misread it as High Tanning, I was worried it was going to be you in your Speedo's on top of a sand dune!

Seriously though, I have had my hands turn that colour from Oak, but never seen wood itself go that colour!

 

[Steve Maskery]

That's quite amazing really. If you'd said you wet it and put it on your CI tablesaw, I could have understood it.

The blue-black colour is the original blue-black ink (iron tannate IIRC) but how you've got that from Formica, I have no idea.

S

 

[chris_d]

Could the formica work surface have had a detergent or multi-surface cleaner on it recently which then reacted with the wet oak?

 

[newt]

I will try it again on another surface, perhaps I have made an important discovery.

 

[Ironballs]

Nice washing machine by the way Pete, we have one of those Boschs and they're great - as much as any washing machine can be great

 

[lurker]

Nice washing machine by the way Pete, we have one of those Boschs and they're great - as much as any washing machine can be great

:shock: Washing machine drive by :lol:

 

[DMD]

Not from your formica top, from the saw blade, the reaction to the tannic acid in the oak and iron from the blade. I make instant weathered oak for my signs with a mix of vinegar and rust - acid rain !

 

[Peter T]

Nice washing machine by the way Pete, we have one of those Boschs and they're great - as much as any washing machine can be great

:shock: Washing machine drive by :lol:

Just got rid of our 12 year old Bosch 'cos the electronics were playing up.

Went for an LG with the direct drive motor. It plays a jingle when the washing is finished

Way cool.....................................how sad am I??

 

[newt]

The bosch plays a jingle bloody well annoys me, swimbo will not let me disable it.