Instantly Age Wood, Part II

An in-depth look at ageing wood with vinegar and steel wool
Last fall I made some rustic looking wooden shelves for our market booth. I wrote a tutorial on the instant wood ageing process using tea and a mixture of white vinegar and steel wool. Read Instantly Age Wood in order to make more sense of this post.

The reaction between the materials is still a mystery to me, but it intrigued me to the point I wanted to experiment further. I even tried it on fabric and rope!

When I used some old leftover mixture, the wood turned brown! Not gray at all, but a pretty chocolate brown as seen in the photo above. So I decided to make a sample using mixtures of different ages to see if the results got darker or browner over time.

Experimenting with ageing wood with vinegar and steel wool

I made four different mixtures. Two with the 10% white vinegar  and two with 5% white vinegar. 

The next day, exactly 24 hours later, I removed the steel wool from one jar of each set.

To prepare the wood for the stain, I made a tea of 2 cups boiling water and one tea bag of normal black tea, leaving the bag in the water. When the tea had cooled, I applied it to the board and waited for it to dry before applying the stain mixtures.

I used a new tightly rolled up paper towel as my applicator for each mixture.

For nine days I made a new sample board. The boards were all from the same fruit crate, and the tea was applied the same day I stained the wood.

The Results!

How to use vinegar and steel wool to make different wood stains

#1    10% white vinegar with steel wool remaining
#2    10% white vinegar with steel wool removed
#3    5% white vinegar with steel wool remaining
#4    5% white vinegar with steel wool removed

As you can see there’s not much of a difference except with mixture #3.

I was surprised the stronger vinegar, the #1, didn’t change the color as much as the #3 did. I had expected it to dissolve the steel faster and therefore affect the color earlier, instead it seems to need even more time to create the rusty brown color.

Both #1 and #3 turned towards brown on the sixth day, whereas the ones with the steel removed didn’t change color or even get darker over time.

Staining wood with steel wool and vinegar

I liked the brown a lot … But I soon discovered the color was a layer of rust that could easily be brushed away! Bummer! Maybe it could be sealed with a finish of some kind, but then again  maybe it wouldn’t look as rustic. It could be used on a piece that won’t be touched much, like the sign I was working on in the header photo.

And so the exploration continues …

~ Marina

Let me know how  your experiments go!

Comments

14 responses to “Instantly Age Wood, Part II”

  1. […] might notice that the extra boards in between are the boards I used in my experiment in Part 2! Even though they were striped, with untreated wood in between,  it all evened out […]

  2. Marc (@_Marc_74) Avatar

    hi, this is great info but im not sure how to proceed with my project

    i want to stain this book but only give a slight age look and not much darker, just bring out the wood a bit better.

    any suggestions on best stain to use?

    http://i.ebayimg.com/00/s/MTYwMFgxMzIy/z/uXcAAMXQC-tTFboJ/$_57.JPG

    1. Marina Avatar
      Marina

      Love your crates!
      The color is a result of the tannin in the tea and the iron content of the vinegar, as well as on the wood itself.
      I have not tried to make a lighter shade. You could try, on a small spot underneath a crate, with a weak tea and an iron-vinegar solution that has brewed for only a few hours instead of the 24 h.
      You could try after 4h of brewing, then let it brew a bit longer if it wasn’t good. Do keep track of the time of the brewing, and do let your application dry properly before coming to any conclusion.
      Do share the result! We would love to see how it worked out … =)

  3. Gilberto corona Avatar

    Que buno que compartan oda esta informacion, creo que me cervira bastante, ya beremos que tal me queda y se los compartire

  4. Linnie Avatar

    Do you know if this stain removes black mold?

  5. kyle Avatar
    kyle

    I like the #4 look? So it’s just 5% vinegar and the rest is water, and put the steel wool in there to sit for a little or no? Did u you use the tea on that one too?

    1. Marina Avatar
      Marina

      No! The 5% refer to the acidity of the vinegar. Normal store bought vinegar in the US has a 5% acidity. The one in Finland has a 10% acidity, making it two times stronger. You need to use vinegar of the 5% acidity and no water!
      The tea is needed to add tannin to the wood. Some woods are rich in tannin and might not need the tea.
      Make a small test to see what works for you!

  6. Alexa Marie Avatar
    Alexa Marie

    Like you, I love to experiment. Next tries are balsamic and apple cider vinegar.

  7. Terra Gazelle Avatar
    Terra Gazelle

    If you use apple cider vinegar you will see a difference..also it depends on the wood. Oak has much more tannin so it will get darker..Pine has little so it needs black tea to be put on first. The black tea has a large amount of tannin..so if you put a wash of it on first then the steel wool there will be a darker result.
    Balsamic will be darker.

  8. Gerda Strydom Avatar
    Gerda Strydom

    Do your vinigar mixture still getting darker day by day even after removing the steel wool. Mine start off white and then getting darker. I want to paint my kitchen units so I then have to make up enough stain and finish all on one day? Please email me!
    Thank you

    1. Marina Avatar
      Marina

      Remember this only works on untreated wood! I would make a big batch to make sure there’s enough. I would also apply it to big areas like cabinet doors first. If there’s not enough stain, then any variation of the color won’t be as noticeable. But the idea with this stain is to have a rustic look!

  9. Bordemundo Avatar

    My question is related to how these held up over time. I like the result but does it keep its color with time?

    1. Marina Avatar
      Marina

      Yes!

Leave a Reply

Your email address will not be published. Required fields are marked *