Vinagroon Got Nasty

[longcruise]

When I get that blue it turns black when oiled.

 

[Harry Marinakis]

Veg tan. I dipped a piece and got a very deep grey.

Yeah
Vinagroon can be unreliable and strange.

The recipe for the iron sulfate dye above is 1,000 years old and it produces a deep black on veg-tan.

 

[LRB]

Veg tan. I dipped a piece and got a very deep grey.

Your solution is not strong enough, or not aged enough. I kept mine going for 0ver 6/8 years by adding to it any time it got low. Turned vege tan black in under a minute, and blacker with repeated coats letting the leather absorb for a few minutes or so between coats. I never soak. I just apply with a dauber.

 

[DixieTexian]

I use hand warmers, as it is just iron. Dump the hand warmer in a jar of vinegar and it will dissolve within a couple of days. Pour it into a shallow pan and dunk the leather into it, rubbing it in a bit. It turns black within a minute or so as long as the solution can penetrate the leather (no oils or such).

 

[Icemanxxxv]

I use hand warmers, as it is just iron. Dump the hand warmer in a jar of vinegar and it will dissolve within a couple of days. Pour it into a shallow pan and dunk the leather into it, rubbing it in a bit. It turns black within a minute or so as long as the solution can penetrate the leather (no oils or such).

Now that is a speedy trick!