Concerning the Use of Vulcanite Powder for Stem Repair

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georged

Lifer
Mar 7, 2013
6,096
16,714
Are you thinking of powdered activated charcoal?

It's ink black, unbelievably fine in texture, neutral in chemical terms, and used to fill chamber wall defects when mixed with sodium silicate.

The only "blackener" I've seen used for stem patches is epoxy pigment. Syrupy-gluey stuff that comes in a jar.

Asking because vulcanite dust is (surprise!) not black. It falls on a spectrum from light olive green to a faint blackish gray. Using it as a coloring agent for patches would definitely not work the way most people imagine.
 
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monty55

Lifer
Apr 16, 2014
1,725
3,574
66
Bryan, Texas
Are you thinking of powdered activated charcoal?

It's ink black, unbelievably fine in texture, neutral in chemical terms, and used to fill chamber wall defects when mixed with sodium silicate.

The only "blackener" I've seen used for stem patches is epoxy pigment. Syrupy-gluey stuff that comes in a jar.

Asking because vulcanite dust is (surprise!) not black. It falls on a spectrum from light olive green to a faint blackish gray. Using it as a coloring agent for patches would definitely not work the way most people imagine.
No, not powdered activated charcoal.
I've heard some use powdered vulcanite and black CA
 

georged

Lifer
Mar 7, 2013
6,096
16,714
CA dries like glass. Not recommended for vulcanite stems, which is softer. She not stay put for long if clenched

If filling vulcanite, use an epoxy that squishes & bends the same amount (West System G-Flex 655), and color it with epoxy pigment.
 

monty55

Lifer
Apr 16, 2014
1,725
3,574
66
Bryan, Texas
CA dries like glass. Not recommended for vulcanite stems, which is softer. She not stay put for long if clenched

If filling vulcanite, use an epoxy that squishes & bends the same amount (West System G-Flex 655), and color it with epoxy pigment.
Thanks for that info.
Ugh, now i gotta buy even MORE stuff
 
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UB 40

Lifer
Jul 7, 2022
1,349
9,800
62
Cologne/ Germany
nahbesprechung.net
Thanks for that info.
Ugh, now i gotta buy even MORE stuff

The glue in the set is not on the cheap side. Maybe you can try the same thing a little bit cheaper:


And if you’re not into repairing a stem of a 1905 Dunhill or Peterson for another 100 years and can live with a little discolouration get the already black, glassy superglue, try the activated charcoal thing or get a cheaper epoxy, they aren’t that bad.

If you read the Data Sheet you will find that this G-Flex 655 really is on the very specific side beyond good and evil.