Showing posts with label finishing. Show all posts
Showing posts with label finishing. Show all posts

Monday, April 28, 2014

Jumping On The Band Wagon!

Well if its trendy then I am doing it. Ok thats how I feel after buying a polissoir. Heres the story. Last month I ran into "Je m'appelle Christoph" Schwarz at the Lie-Nielsen Hand Tool event in Charleston. When it got slow Chris started handing out half made squares for everyone (including customers that were hanging around for hours) to finish making and take home.

It was kinda funny. A customer would pop in and there we all were, head down, completely focused on this rather than them. They seemed confused but interested in what kind of class we all were apparently taking. Questions followed such as; what are you making, what kind of wood is that? About that time we would snap out of it and go back to demonstrating whatever it was we were supposed to be doing.

Anyhow we were all finishing the squares with the polissoir. I was pretty impressed. Then when I got home I realized this would work really well on my planes. Wishing I had actually tried it out on a plane while at the show I decided anyways to buy one. What really motivated me was that Don Williams started offering one that would accommodate carved/shaped surfaces. I was sold.

Here is what the carver's polissoir looks like. One end is for complex surfaces and the other I use just like the standard one. It is sort of a two in one, though it doesn't appear to have been intended for that purpose, but why not?

Carver's Polissoir

This is what it looks like when it arrives. You have to soak the ends in some melted beeswax then once it dries it is ready to go. That is a one time process as far as I understand. The wax acts more like a lubricant rather than being meant as the applied finish. However I am sure it is getting rubbed into the surface to some extent.

Here is what the finished burnished surface looks like on the planes. By the way the finish I use on the planes is heated linseed/Danish oil.






I am pretty stoked about the results. My favorite thing about the finish is that it is so much more durable. I always kinda worry about leaving grim from my hands on the grips of the planes while I am tuning everything up just before they go out the door. But the polissoir burnishes the surface so hard that there seems to be no open wood pores to get grimy.

Here is a link to make one if you want to try it out or see the ones from Don's Barn.

I am going to give this a try out on a piece of Danish furniture soon. I can't wait to see how it works there.  

Additional Thoughts:  I often mention products or links to things or other folks. I do this not to promote anyone for any particular reason. First off I like to point out other good stuff that is going on out there besides just what I am doing. I think good stuff should get noticed. It benefits us all. 

I also like when someone is making a product that is useful and it employees an individual craftsman. For instance Don's polissoir is made by a broom maker not far from him. That was motivation for me to by one rather than make one. 

Thats it. I just don't want my posts to come across like I am selling something. My intent here has always been to just share good useful information to those that want to know more about woodworking crafts. 

Take care!

Monday, December 24, 2012

Danish Soap Finish

One of the most mysterious things about Danish modern furniture to me when I started making it was this strange soap finish that is talked about so often. I wondered, "What is this all about"?

Well, the easy answer is that it is a soap that is simple washed onto the wood surface. You may wonder how that protects the surface, though. Basically, soaps traditionally where made of oils of some sort or another. Your grandma or great grandma would have used "ivory" soap flakes that where made from vegetable based sources, palm and coconut oils usually. Everything from cloths to who knows what was washed with it.

Why use soap to protect wood surfaces? Wood has pores and those pores will get clogged with dirt and oils from use if not protected. Soap clogs those pore and keeps the dirt and oils out. Also being soap it also releases dirt and oils easily thus keeping it off of the surface.

Wood also benefits by have a finish that slows the exchange of moisture from the wood to the surrounding atmosphere, thus keeping it more stable. Soap finishes aid in doing this like other finishes though to a lesser degree.

The biggest advantage, I believe, is that it leaves woods like white oak and ash looking as natural as the raw wood itself. As a woodworker I love the organic feel this gives a piece. The soap finish is also incredibly smooth to the touch and ages so beautifully.

Some suggest that soap finishes are a lot of maintenance. I have found that since they age nicely I really don't do anything to maintain their appearance. If it does get soiled, simply wiping the surface with a damp cloth will usually remove whatever is unwanted. Wiping the surface with more of the same soap will freshen it up as well. In Denmark this is often used to finish floors even. I think that attests to its durability and effectiveness as a finish.

I purchase my soap flakes from a U.K. based producer. www.msodistributing.com currently can supply this in the US.


Here is how I prepare my soap finish. I mix boiling water and soap flakes in equal parts, 1/1 ratio. If I am making a large batch I will reduce the water a bit. I only want enough water to dissolve the flakes and it should create a whipped cream like consistency when mixed together but with a thicker body to it, not so airy.

First measure out your flakes and then pour the boiling water in equal parts over the flakes. Let that set long enough for the flakes to absorb the water and it will get a translucent appearance and will become sort of jelly like. Now mix in a bowl until you get the consistency I mentioned above. See photo below.





You can now place a small amount inside a lint free white cotton cloth that is folded over itself. Squeeze the soap through the fibers and to the outer surface. This will thoroughly saturate the cloth with soap. Now wipe it on the surface of your wood. Put on enough to fill the pores. Don't let it cake on the surface, though. Once it is dry you can knock down any raised grain with 220-320 grit sand paper. Apply one more coat and that is usually sufficient. Finish by buffing with a soft cloth if desired.

To freshen up your finish follow the same steps. If you have a set in stain you can try pouring some boiling water on the spot. The soap will often force the stain loose. Let it dry and reapply a finish.

A note of caution; Do not wet end grain surfaces to heavily. These areas absorb more water than the face grain and can crack if continually saturated. Thus it is best to make your soap with less water and more like a paste. Also coat both sides of a panel, such as a table top, evenly so that it will reduce the potential to cup or warp.