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4K views 11 replies 8 participants last post by  SteveKorz 
#1 ·
I'm so finished

There's an old Vaudeville line that goes something like this:

A man is not complete until he is married. Then, he's finished.

I remember chuckling when I first heard that, and the hurt look on my wife's face when I told her for the first time. That one took a lot of flowers and a homemade dinner to make up for.

For years, when I first started woodworking, I had a similar expression I used to tell everyone:

Finishing is the easiest way to ruin a perfectly good woodworking project.




I hated finishing a piece. It never failed - I had my finishing regimen, and it was always a disaster.

First, I would sand the piece. I don't like to sand, and all I owned was a ¼ sheet finishing sander. Do you know how long it takes to sand saw marks out of a piece of wood with one of those? I'm asking because I just don't know - I would always stop sanding WAY before the surface was smooth. I'd run the sander, step back (eyes watering from sawdust) and say, "OK, that's enough for me."

Then, I would stain my project. Since my first pieces were made of the cheapest wood I could buy, that meant pine. No. 2 common from the local home center. And, if you have ever tried to stain pine, you know that you should expect the worst. The blotching was incredible.

Impatient, I would never wait the recommended time for the stain to dry. I would pick up the can of brush-on poly and proceed to slop the stuff on with the first brush I could find that wasn't totally clotted up with old, dry paint.

Needless to say, the pieces were always a disaster. Machining marks, blotchy stain and sags and runs in the finish were always hallmarks of my pieces. Oh, and the finish was very rough to the touch, what with all the dust in the film. It was pretty nasty.

After ruining several projects, I just had to find a new way to do things. After reading some great books - notably Bob Flexner's Understanding Wood Finishes - and posting lots of questions on woodworking message boards, I was turned on to a method I use with great success. Maryland box maker Dave Knipfer calls it the Rude and Crude method of finishing, and I've found that there's a lot of sound wisdom in giving it a shot.

First, I've really done away with staining. When I need a piece of wood to look like cherry - I go and get cherry. The range of colors in domestic and exotic hardwoods - and softwoods, for that matter - is very impressive. I've found it easier - and gives a better result - if you let the wood's natural color come through.

The next thing I did was improve my sanding technique. Now, I'll use a smoothing plane and scrapers to do the bulk of the work, and I will use sandpaper wrapped around formed bocks to reach into molding profiles. My Porter Cable random orbit sander does occasionally make an appearance, but the sweet action of planes and scrapers eliminates the drudgery of sanding.

The next thing I do is to use Zinnser Seal Coat as a sanding sealer. It's a 2# cut of clear, dewaxed shellac, and I usually cut it half and half with denatured alcohol to ensure a very light coat. I'll blow off any dust on the piece and then use a rag to wipe the shellac on. Don't be bashful, use a lot of it!

Once it's all covered, then you set the project aside for the shellac to dry. Give this process at least two hours for the shellac to really get set - overnight is preferable.

This next step may seem kind of counter-intuitive, but bear with me. You want to use a fine grit sandpaper (320 or higher), #0000 steel wool or a fine plastic abrasive pad, and rub the shellac finish. You want to sand that surface for a good long time. Dave says to rub until your arm is about to fall off - if your sanding arm hurts after a few minutes, you are doing a good job!

What you are doing is removing all of the shellac from the surface, leaving only the stuff down in the pores. Remember the blotchy pine problem? Leaving this shellac seal coat in the pores will eliminate it once and for all.

After what seems like an eternity, you'll have a very smooth, begging to be touched surface on your project.At this point, I blow the dust off of the piece and get ready for the final step.

I have given up on brushes. Period. My new motto is, "If I can't wipe it on, I don't use it." Wipe on polyurethane, varnish, Danish oils or similar finishes go on beautifully in very thin, even coats. You would have to try really hard to leave a wipe mark, sag or other imperfection in the surface if you use these products. The finish goes on very smooth over the prepared surface, and I set the piece aside to dry. Later, I will put on additional coats of the finish, following the manufacturer's directions.

What do my projects look like now? The wood absolutely glows under a picture perfect finish. People who look at my stuff want to see it first, and then they want to touch it.

It's a finish fit for a king.

Here King!
 
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#5 ·
This is a good routine that you have.

One step I would add is that often we tend to sand too long. One way of controlling the amount of sanding that "has" to be done is to draw some lines on the surface of the wood with a #2 pencil. When the pencil lines are sanded off the piece is ready for the next grit.
 
#6 ·
Tom,

Before I purchased professional finishing equipment, I too found that the safest and most sure way to get a good finish was to use a wipe-on. It is nearly goof-proof.

Because each coat is thin it will not run and it dries quickly. Clean up is a snap and the odor is not so much an issue from these finishes (this is relative to heavier application by brush or by filling the environment with overspray.)

It does get a bit difficult to apply if there is anything with a relief like a carving or rosette, but it does work well for most applications.
 
#9 ·
Become your own mixologist

The coolest job in any restaurant belongs to the bartender. Sure, the chef gets the credit for the outstanding meal, the maître d' for the ambiance of the place and the wait staff for the overall dining experience.

But, when people want to have fun and strike up a conversation, they turn to the bartender. Think Isaac on the Love Boat. Tom Cruise in that stinkin' movie about being a bartender.

"Yes, Mr. Bond would like his martini shaken, not stirred, Mr. Sinatra wants a highball, and Evel Knievel wants two fingers of Wild Turkey before he tries to jump the fountain in the parking lot on his Harley."

While no one may be hanging out in your wood shop, you can be just as cool by mixing your own wiping finish. Why mix your own? Instead of just relying on what a manufacturer thinks is the best mix, you can adjust your formula to fit your own needs - faster drying time, more film build, etc. Also, if you have cans and bottles of the components, you can use them in your finish instead of throwing them out.

Mixing your own finish is very easy. There are dozens of formulas out there to suit individual needs, but this is my formula I have used very successfully through the years.

The ingredients can be found in any hardware store and start with boiled linseed oil (BLO). This natural oil helps the figure in wood 'pop' and gives it a rich, deep finish. The next ingredient is polyurethane or some other type of varnish. It offers a great deal of protection from water, abrasion and other hazards. Finally, you have to add a thinner to the mix. I like turpentine, but paint thinner or naptha will work as well. It makes the finish flow nicely and level without brush marks and runs.

Now, here comes the hard part - mixing it together. The 'standard' mix that a lot of people refer to is 1/3 varnish, 1/3 BLO, 1/3 thinner. While this does make a nice mix, I have found that I can mix it 1/2 varnish, 1/4 BLO and 1/4 thinner. It gives me a little faster build on the finish while still making for an easy wipe on.

My scientific method for mixing involves an old pickle jar. I measured up from the bottom in one inch increments, and poured the ingredients up to the lines. No, you are not trying to send people to the Moon or split the atom, close enough will work…

After sanding the piece, I again prefer to wipe on a coat of 1# cut dewaxed shellac and sand it down to 400 grit after letting it cure. Then, I wipe on the finish with a rag. Don't be bashful, the wood will soak up a lot of the finish - especially in end grain. Let it sit for about five minutes, then wipe off any excess with a dry cloth.

I love how easy the mix is to use, and I have yet to be let down.

Now, after all that hard work, I think I'll take one of those fancy martinis to celebrate.
 
#10 ·
Tom, thanks for the info. To many finishing is a part of the project that they approach with dread and reluctance. If possible they would sooner farm this out rather than deal with the "butterflies" that starting the finishing routine brings. But the recipe that you have described is one that goes on easily, flattens out quickly and dries quickly into a hard protective top coat with a nice sheen. I use a similar process but the only difference is that I just "measure" by eye. As you say this is not exactly rocket science.

Nice post.
 
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