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Spalters Inc. #7: First (preliminary) determination of decay temperature of Xylindein

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Blog entry by Sodabowski posted 1030 days ago 4175 reads 0 times favorited 12 comments Add to Favorites Watch
« Part 6: determining the temperature of destruction of xylindein Part 7 of Spalters Inc. series Part 8: fast-extracted xylindein »

So here it is: the first attempt at determining the temperature at which the pigment produced by Chlorociboria vanishes.

This is preliminary data (you never stress it enough!), furthermore testing will be needed to assess the exact way it happens within a seriously controlled setup.

The pigment is stable up to 90°C, then it quickly starts to degrade. At around 110°C, half the pigment has lost its color. At 125°C, only 25% of the coloring remains. At 155°C, only 10% of the green is still present.

Please note that the subsequent coloration of the wood due to closed-vase combustion has not been taken into account here, and the temperature growth rate was rather quick (1°C/s) mainly because I used a propane torch (at a distance) to gently heat the test tube, and I didn’t want to kill the whole gas bottle.

All in all, xylindein is stable up to 90°C, and quickly loses its color between 95-125°C.
Which would mean that, with my experimental setup, water steam would destroy the color of my wood samples.
Which ultimately means that it might not be a good idea to try to hot-bend or steam-bend xylindein-stained banding for, say, binding a box or a guitar body.

I guess you guys now understand why I was so anxious about getting that information ;)

-- Holy scrap Barkman!



12 comments so far

View Schwieb's profile

Schwieb

1494 posts in 2088 days


#1 posted 1030 days ago

Thomas, The guitar maker shows up. You know, of course that I have wanted to build an acoustic guitar for some time. I can only try to imagine where your mind was headed. Perhaps you can work the spalted wood into the guitar in other ways. I see the scientist and the woodworker working this problem out just fine. I’ll be looking for further developments.

-- Dr. Ken, Florida - Durch harte arbeit werden Träume wahr.

View Sodabowski's profile

Sodabowski

2002 posts in 1460 days


#2 posted 1030 days ago

Hey Ken, it’s quite a long road before I can actually build a decent guitar. I still have a bandsaw mill to finish next summer to properly slab my wood, then build a jointer and buy a tablesaw!
I still didn’t find any decent-sized samples to send to you but I didn’t forget you :)

As for the banding, actually, there are several wood softeners (used for veneer mainly) that can do the trick for heat sensitive binding :)

-- Holy scrap Barkman!

View moment's profile

moment

2116 posts in 1308 days


#3 posted 1029 days ago

View moment's profile

moment

2116 posts in 1308 days


#4 posted 1029 days ago

I really don’t comprehend your data , but I’m considering ( in a blatant act of plagiarism ) submitting it to several scientific journals under

my usual pseudonym…..( i.e. Prof. Spaultz ) wadayathink?

View Sodabowski's profile

Sodabowski

2002 posts in 1460 days


#5 posted 1029 days ago

No way :p I’ve started writing the final article, which will, by the way, be submitted to scientific journals.
The spalted maple sides of that Stehr acoustic guitar are wicked cool! But no Chlorociboria stain out there ;)

-- Holy scrap Barkman!

View moment's profile

moment

2116 posts in 1308 days


#6 posted 1029 days ago

Shucks ! foiled once more ….....blinded by science ….....I relent to your superior intellect . : )

I agree…......very cool guitar .

View mafe's profile

mafe

9486 posts in 1716 days


#7 posted 1029 days ago

Thomas you are wonderful.
You will play FUNKIS all night long.
Smiles,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View Sodabowski's profile

Sodabowski

2002 posts in 1460 days


#8 posted 1029 days ago

What is FUNKIS mads? o.o

-- Holy scrap Barkman!

View chrisstef's profile

chrisstef

10653 posts in 1633 days


#9 posted 987 days ago

Grand Funkis Railroad?

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

View mafe's profile

mafe

9486 posts in 1716 days


#10 posted 986 days ago

FUNK’ies
Is that better…

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View Sodabowski's profile

Sodabowski

2002 posts in 1460 days


#11 posted 986 days ago

Oh I get it :) Where have you been Mads? :)

-- Holy scrap Barkman!

View mafe's profile

mafe

9486 posts in 1716 days


#12 posted 986 days ago

I’m on the moon these days…
Will write you a mail soon.
Best of my thoughts,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

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