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Little Journey's #2: Fuming!

Blog entry by gizmodyne posted 532 days ago 284 reads 0 times favorited 8 comments Add to Favorites Watch
« Part 1: Back Log Part 2 of Little Journey's series Part 3: Applying Shellac and Hiding Sapwood »

I had a little more handwork to do on the Little Journey’s Bookstand. I fiddled with the tusks a bit.

I originally sanded the piece to 400 but decided to sand to 220 this time. The loose tenons/tusks took forever to sand and detail.

Fuming Time

I have always wanted to try this. Two years ago I had a student whose dad owned a blueprint shop. He gave me a large bottle of super strength ammonia. I had bought an ammonia respirator in preparation for the job.

I build a simple tent from pine scraps and then stapled plastic to the outside.

I donned long sleeves, my respirator, chemical gloves, and goggles.

I poured two bowls of ammonia.

and stuck them under the tent.


The color change happened almost immediately.

We kept watch over it and then after about 3.5 hours we removed the tent.


I poured the spent ammonia into a large bucket of water.

I took the piece back to the shop to air out for the night. That stuff is wicked! Even with a respirator.

In the finewoodworking article, author Kevin Rodel indicates that the final finish will darken the piece while warming it up.

We will see. I plan on shellac and dark wax.

-- -John "Do I have to keep typing a smiley? Just assume it's a joke." www.flickr.com/photos/gizmodyne


8 comments so far

View teenagewoodworker's profile

teenagewoodworker

2479 posts in 661 days


posted 532 days ago

looking good! that ammonia is dangerous so its good to see you taking the proper saftey precautions. i can’t wait to see the finished product. thanks for the post.

View Betsy's profile

Betsy

2388 posts in 788 days


posted 532 days ago

Looks good so far. Looking forward to the final pictures.

-- You can't get a hug from Facebook.

View Scott Bryan's profile

Scott Bryan

20564 posts in 714 days


posted 532 days ago

This is looking pretty good. Fuming produces a nice rich color but is not commonly used anymore. It is nice to see you using this technique. I too am looking forward to seeing the finished project.

-- With God's help all things are possible- even woodworking. Woodworking is not just a hobby, it is an (expletive deleted) expensive hobby.

View gizmodyne's profile

gizmodyne

1668 posts in 982 days


posted 532 days ago

Thanks guys. I have to go look at it this morning and see if I want to make it darker before the finish. It was dusk outside when I took it out.

-- -John "Do I have to keep typing a smiley? Just assume it's a joke." www.flickr.com/photos/gizmodyne

View GaryK's profile

GaryK

9521 posts in 881 days


posted 532 days ago

Very cool Gizmo!

Ammonia is the same thing they put in “smelling salts”.

I never have made anything from oak yet, but if I do, this is the finish I want to apply.

-- Gary, East TX -- The longest journey begins with a single step.

View tenontim's profile

tenontim

1319 posts in 637 days


posted 532 days ago

Always make sure that you use a respirator filter made for ammonia. It’s a different one than used for paint fumes. Gizmo has all of the right equipment, and it’s not just a precaution, it’s necessary. If you have any cuts or scrapes that are covered, the ammonia will let you know.
Also, the darkness of the oak will depend on the amount of tannic acid in the wood. Sap wood will not darken. Maximum darkness will happen within 24 hours of fuming. It’s a good idea to put in scraps when you start, then you can test them every hour or so to get the amount of darkening that you want. The piece doesn’t have to be free of fumes to put some boiled linseed oil on it, so you can get an idea how it will look.

-- Tim -- http://tmuli.com

View EdC's profile

EdC

457 posts in 733 days


posted 530 days ago

Interesting process, can you imagine what ou great grandfathers went through without all the technoligy we have today.

It will be cool to see the final resukts.

-- Ed - Milan, IN

View Mark Shymanski's profile

Mark Shymanski

1555 posts in 605 days


posted 528 days ago

Cool process, great post describing what happened. Looks like a great piece of furniture, thanks for the post.

-- ...it's rennovation time!!!

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