farmersracer Report post Posted January 22, 2018 Hi I have just started to wet form veg tanned leather. But I get lots of tiny black spots on the leather. I can definitely say that they are not there when I cut out the dry leather parts. What is this - something in the water, the leather or the mold? Thanks for all tips. Lars Gustavsson Quote Share this post Link to post Share on other sites
Northmount Report post Posted January 22, 2018 If you get any iron/steel filings on veg tan leather, when wet it will react with the tannin in the leather producing blue/grey/black spots. You can bleach it out with oxalic acid or with lemon juice. Make sure to keep metal working operations away from your leather. I saw a comment a few days ago about some leather being contaminated before you get it. So that is another possible. Tom Quote Share this post Link to post Share on other sites
farmersracer Report post Posted January 22, 2018 Thanks Northmount This makes perfect sense. I have used a iron enamel tray when soaking the leather. I also sand the wood mold before using it. There might be a nail or two treating metal dust. Thanks for the help Quote Share this post Link to post Share on other sites
