Here are some notes I took on Ebonizing wood. From this article in Popular woodworking. How To Ebonize Wood | Popular Woodworking Magazine I think I may have thrown in info from other sources as well. I apologize in advance I am a horrible typist. I have only gone so far as to “dissolve” the steel wool in vinegar. You definitely need to rinse the steel wall thoroughly. My first attempt with Heinz vinegar and lazily washed steel wool is still just sitting there about 6 months later. With the steel wool floating in the vinegar. For my second attempt I bought 30% vinegar from Amazon and thoroughly washed the steel wools. The steel wool broke down in a matter of days. The second time I also installed an air lock in the lid of the jar not sure if that helped with dissolving or not.
From my reading you do not specifically need the quebracho extract for the tea but I want to try it eventually time permitting to see what kind of different coloring it creates.
Ebonizing Wood
Uses iron to stain wood black by using a reaction between iron oxide and tannins in wood to create a black color in the fibers of the wood, makes the color durable and light fast
Problem it relies on tannins in wood which are variable between species and wood within species.
Commonly ebonized wood:
Oak
Walnut very reliable
Randy Cochran used a process to saturate wood with chemical tannic acid then apply rich iron solution made from soaking rusty nails in water for weeks. Made deep black w/bluish tint
Use bark tea made from quebracho to increase tannic acid then once wood had dried add solution of vinegar and iron, caused a chalky black, adding a last coat of bark tea eliminated chalk and made a deep coal black
Making solution
Iron solution
Wash 0000steel wool in soap and water put in plastic quart bottle of Heinz vinegar, done when steel wool is dissolved, can take a week, sieve the solution through coffee filter into quart jar, can be light gray or red color, should be clear not cloudy, keeps for months in plastic jug, put 1/32 hole in lid, make one week in advance
Bark tea
Drop heaping tablespoon of bark powder into a pint of hot water and stir well,
The Process
- Sand furniture well raise grain at least twice before final sanding, stop after #320 grit to avoid burnishing, use light touch and fresh paper, do not sand stained wood
- Soak assembled furniture with the bark tea, do not rub woodlightly stroke surface with solution, blot off excess that pools,
- Once wood is damp but not visibly wet, apply the iron solution with light strokes, would should turn dark immediately, check from several angles to make sure everything is stained
- Allow to dry off before applying tea rinse
- Use a clean rag to buff the word with the iron deposits left behind, Be gentle not to burnish wood
- Rinse with tea once it has an even sheen
- Let dry one more time
- Polish again
- Wash with clear water
If you find a blank spot sand o with #320 grit and start stain process at step one, do not restain whole piece
Problems and solutions
If when you wipe of after cleaning water the color goes away
sand with #180 then #220 grit and start process over, the fibers have been compressed so in wrong" surface not in the wood Prevent this by only applying stain with a brush or paper towel lightly, keep finger pressure off wood
You notice a texture change on the surface this is caused by build up of solids the tea is too strong or poorly mixed and and start over oak especially white oak can be hard to stain Soap can help with this you can also sand off the first application once dry and reapply stain
use spray bottle to apply stain to rags to avoid cross contamination never dip rag into main container
Use new paper towel for every application of tea and vinegar
- Design of piece will determine if you stain pieces individually or if you assemble then stain
- add 20 percent to cost of work
- plan enough time to complete staining in one day
what you need
- One quart of Heinz white vinegar
- (in a plastic bottle)
- One clean, large-mouth quart jar
- One pad of #0000 steel wool
- One stainless steel spoon for stirring
- One basket-type coffee filter
- One sieve
- Quebracho bark powder
- One pint jar (for mixing)
- Two small containers (quart jar lids are big enough) or squirt bottles
- Paper towels or two brushes
- Latex gloves
Van Dyke’s Taxidermy, 800-843-3320 or vandykestaxidermy.com
- 2 lbs. bark tan & dye (quebracho extract) #01347179, $6.39