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

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Blog entry by Sodabowski posted 10-28-2011 02:25 AM 4577 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

1574 posts in 2213 days


#1 posted 10-28-2011 02:38 AM

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

2082 posts in 1585 days


#2 posted 10-28-2011 02:55 AM

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 S4S's profile

S4S

2123 posts in 1433 days


#3 posted 10-28-2011 09:58 AM

View S4S's profile

S4S

2123 posts in 1433 days


#4 posted 10-28-2011 10:09 AM

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

2082 posts in 1585 days


#5 posted 10-28-2011 11:51 AM

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 S4S's profile

S4S

2123 posts in 1433 days


#6 posted 10-28-2011 01:17 PM

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

I agree…......very cool guitar .

View mafe's profile

mafe

9688 posts in 1841 days


#7 posted 10-28-2011 05:45 PM

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

2082 posts in 1585 days


#8 posted 10-28-2011 06:16 PM

What is FUNKIS mads? o.o

-- Holy scrap Barkman!

View chrisstef's profile

chrisstef

11478 posts in 1758 days


#9 posted 12-10-2011 03:18 AM

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

9688 posts in 1841 days


#10 posted 12-10-2011 09:05 PM

FUNK’ies
Is that better…

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

View Sodabowski's profile

Sodabowski

2082 posts in 1585 days


#11 posted 12-11-2011 02:13 AM

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

-- Holy scrap Barkman!

View mafe's profile

mafe

9688 posts in 1841 days


#12 posted 12-11-2011 02:44 AM

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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