Question About "Iron Buff" (Steel Wool/Vinegar Stain)
This is actually for a leatherworking project, but iron buff is much more often used with wood projects. Veg tanned leather often uses oak bark for the tanning process, and imparts a hefty dose of tannins into the leather and this allows me to soak iron acetate into it to create a base color for darking staining.
I have experienced in wood, as well as in the jar that I keep the iron buff, an orange cast to an iron buffed piece which I am almost certain is unspent iron oxidizing to create rust. In the jar, this reappears every time I filter it out, likely due to the tennacity of the iron to oxidize with the air in the jar. So my question for anyone familiar with using iron buff is this...
Is the rust 'residue' from iron buff avoidable or removable?
I ask because my project is a hanging strop for a straight razor. It must not have any unknown abrasive qualities to it, and iron oxide on the surface is exactly that. The iron buff is promising because it reacts chemically inside of the leather, avoiding any addition of solid materials to the surface as with some leather stains and dyes. This is all moot, though, if I end up with iron oxide in the surface grain.