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Been experimenting with second and third batch of Vinegaroon.....came out great, test piece of 2-3 veg tan leather turned instantly black...after second soak it was jet black!!!!!!!!

Great!!!

Now, when it is dried out it suddenly shows grey blotches...oiled second piece, first jet black....then when dry sort of gray...what do I do wrong...

James

http://www.elfwood.com/~alien883

First it is just leather....then it is what-ever I can dream off...

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Posted

Been experimenting with second and third batch of Vinegaroon.....came out great, test piece of 2-3 veg tan leather turned instantly black...after second soak it was jet black!!!!!!!!

Great!!!

Now, when it is dried out it suddenly shows grey blotches...oiled second piece, first jet black....then when dry sort of gray...what do I do wrong...

James

I have had the same problem. It's the leather. I oiled lightly again truned out OK.

Dennis

Dennis from Durango

Posted

Good Morning James,

It sounds like the leather was not oiled enough. The process works best when the leather is oiled after the Vinegaroon,,,, but,, I should also mention, that after the Vinegaroon has been applied & dried, the surface should be neutralized. I usually use a very dilute mixture of baking soda, that I "wash" the surface with to help neutralize with. This is an important step. Here is a link to a tutorial: http://leatherworker.net/forum/index.php?showtopic=14946

I hope this help,,, Ed the"BearMan"

Ed the"BearMan"

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Posted (edited)

I had same issue so oiled several times before it stayed black. It seems some leather may have more or less oils to begin with so may need to be refreshed more with the oil.

Edited by Wishful
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Posted

Whenever you get gray before oiling it generally means that there is a lack of tannins to react with the iron - to darken it prior to oiling (sometimes the oil will darken it enough but not always) use a brew of cold, strong black tea (ie. Liptons or what I use is the el cheapo Wally World brand). The tea can be applied either before or after the vinegar black is applied.

Let dry and if need be re-apply both then oil.........

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Posted

Whenever you get gray before oiling it generally means that there is a lack of tannins to react with the iron - to darken it prior to oiling (sometimes the oil will darken it enough but not always) use a brew of cold, strong black tea (ie. Liptons or what I use is the el cheapo Wally World brand). The tea can be applied either before or after the vinegar black is applied.

Let dry and if need be re-apply both then oil.........

Ahhhhhhh, tannins....in tea...hmmmm, need to try that....thanks a bushell!!

James

http://www.elfwood.com/~alien883

First it is just leather....then it is what-ever I can dream off...

  • 13 years later...
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Posted

Last summer I made some vinageroon for some wood projects. Then, I left it out, in an open jug, until mid-winter. There wasn't a lid, but I had a paintbrush stuck upside down in the opening, which would have kept a lot of the snow out.

When I decided to try it on leather, I went out and grabbed it. -30C outside so I had to thaw it out first. 

It yielded a grey instead of black. First, I used a colour dye over the grey, to rescue it. (photo inset/blue with runner)

After some drinks and internal arguments, I must have decided I liked it, because I just made a few more. The fresh batch of vinageroo also yielded grey.

Of course, because of this thread, I suspect tanins, and may soon try tea or tree-goiters to achieve the black I was after. I'll post results when I get that done. 

 

The leather I'm using is a budget-friendly choice, and maybe going cheap means you don't get as many tanins...In anay case, I like the grey so much, I'm starting to wonder what other mistakes I can commit.

DJK18606sml.jpg

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Posted

Looks good, contrasts nicely with coloured thread.

Machines wot I have - Singer 51W59; Singer 331K4; Seiko STH-8BLD; Pfaff 335; CB4500.

Chinese shoe patcher; Singer 201K (old hand crank)

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Posted

I started a new side of leather, and the vinageroon produces a dark grey, nearly black.

 

Now I want to get the light grey back...anyone know how to remove tanins from veg-tan?

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Posted

:lol: Unfortunately it sounds like one of those unforeseen accidents with a happy outcome, never to be repeated.

Machines wot I have - Singer 51W59; Singer 331K4; Seiko STH-8BLD; Pfaff 335; CB4500.

Chinese shoe patcher; Singer 201K (old hand crank)

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