Uploaded October 2012 | Updated September 2026, 2 weeks ago
Here is the chemical reaction of iron oxide (rust) on the tannic acid in wood. The slight delay is the iron oxidizing in the tannons. The ash board is painted with tannons from the Quebracho tree bark, hence it's light brown color.
JustAWoodShop.com
Here is the chemical reaction of iron oxide (rust) on the tannic acid in wood. The slight delay is the iron oxidizing in the tannons. The ash board is painted with tannons from the Quebracho tree bark, hence it's light brown color.
JustAWoodShop.com
