I mentioned that I needed to do something about the dust getting into the rest of the house and ordered an air filtration system made by ShopFox. It arrived on Saturday and I have it set up in the shop now. So far it looks pretty good, but I haven’t done any serious sanding or wood turning yet, so we’ll see just how well it actually works once I get a new project started.
If you go shopping for one of these don’t let the hype in the advertising fool you. All these things are is a box with a fan and motor, with one or more filters in it. How well these things work is entirely dependent on the filters used and how much air the fans pull through the filters. And that’s it. Everything else is just fluff and nonsense you don’t need.
This one looks fairly robust. The outer case is sheet steel, looks well made, nice fit and finish to it. It has a 3 speed fan that looks like it should be more than capable of handling the size room it will be in. The only other control is a timer so you can set it to turn itself off after 1, 2 or 3 hours. It came fully assembled, with the filters already installed. I just took it out of the packing material, took it out of the plastic bag and turned it on. And supposedly the filters are cleanable/washable and can be reused. So we’ll see about that.
Anyway, I’ll keep you updated about how well it works and if it does a better job than the makeshift furnace filter taped to a box fan trick. Considering how much dust I generate when I’m sanding I may end up using both the Shopfox filter and the box fan trick.
A New Finish Experiment
I’m always looking for ways to finish wood that improves its appearance and that is easy to use. I’m also addicted to Youtube (sigh… the hours I’ve wasted there…) and learned about something called “OB Shine Juice”, some kind of miraculous, easy to use, virtually instant finish you just slap on and buff out and…
But like most of these “tricks”, it turns out that in real life, no, it’s not that easy to use, at least not any easier than most of the other methods I’ve used. And while it might be useful for somethings it isn’t some kind of miraculous super finish. And it has some serious drawbacks including the fact that it is potentially dangerous. The danger is slight, true, but it’s still there, and I’ll talk about that at the end of this segment. Is it useful? In some cases, yes. But it isn’t going to replace my usual finishing methods.
You can’t buy this stuff, you have to make it, but there are only 3 ingredients and all are easily available and fairly cheap. Boiled linseed oil, shellac (most of the recipes call specifically for Zinsser shellac apparently because Zinsser seems to be the only company that still makes the stuff) and denatured alcohol. Just chuck equal parts of each into a bottle, shake it up, and there you go.
I didn’t have Zinsser’s on the shelf because I make my own shellac. I could have used my own but most of the recipes for this stuff called for Zinsser specifically, and I wanted to stick with the instructions exactly for this test. I ran down to the local hardware store and found some and scurried home with my prize.
Right off the bat I started to have doubts about all of this because as soon as I opened that can I began frowning.
Now the shellac I make is in that photo over there on the left, almost completely clear, no cloudiness, a nice golden amber color that dries clear and almost colorless, and the only thing you can smell when you open that jar is the alcohol. I’ve said before that I really, really like shellac. It’s a great sealer, sanding sealer, and even makes a pretty darn good final finish if you use one of the thicker cuts. So I figured the commercial stuff would look pretty much like what’s in that jar.
I was wrong. When I opened that can of Zinsser’s… Oh dear. This stuff was just nasty. I mean seriously nasty. Thick, cloudy, even muddy looking. And it smelled just as nasty as it looked. First thing I thought was that somehow I’d got a bad batch or something. So the next day I went to a different hardware store and bought another one. I popped it open and it was exactly the same. How old was this stuff, anyway? Shellac has a limited shelf life. I looked all over the can and I couldn’t find a manufacturing date or an expiration date or anything that might indicate when it was made. So for all I knew this stuff had been sitting on the shelf for years.
Well, I wanted to follow the instructions exactly so I mixed the stuff up using the Zinsser’s anyway. I mixed 4 oz of each of the three products and, frankly, it didn’t look very good. Or smell very good. But let’s try it and see what happens.
I had a small, simple ambrosia maple bowl on the lathe that I’d just finished sanding and decided to try it on that. The instructions for using the stuff are pretty simple. Just slather the stuff on using a paper towel until the wood doesn’t absorb it any more. Then spin up the lathe and start applying very, very light coats until the wood doesn’t seem to be absorbing anything and then start to slowly buff it out. So that’s what I did.
I didn’t have high hopes for this stuff, but I have to admit that it turned out fairly nice.
But to be honest, it isn’t as nice as I’d hoped it would be, and certainly isn’t as nice as the proponents of this stuff claim. Nor is it as easy to use as they claim. In fact it is considerably more time consuming and difficult to use properly than my usual method of just putting several seal coats of thin shellac on a piece of wood followed by carnauba wax and buffing it out.
First thing I discovered is dear lord do not use paper towels, which is what a lot of these guys recommend. Paper towels began to disintegrate almost immediately, leaving shreds of paper all over the wood. I ended up having to go over the whole thing with OOOO steel wool to remove the tiny paper shreds and start over using a piece of lint free fabric.
Second, this is not a fast process. They make it seem so fast and easy in the videos. It isn’t. It takes a considerable amount of time, and many, many coats of this stuff before it starts to get even close to glossy. And it took me quite a while before I began to figure out just how much pressure and how much ‘juice’ to use to get it to start to buff out properly.
Does it work, though? Sort of. The end result looks pretty good. I can see this being useful for projects that have a lot of detail and odd shapes where it would be difficult to get waxes or other finishes into all of the little nooks and crannies. But is it something I’ll use frequently? Probably not.
Now, the dangerous bit. I’m not joking around here – linseed oil is a serious fire hazard. It generates heat as it dries, a lot of heat. Enough to cause rags, paper towels, etc. to spontaneously combust. I like to think I am not a paranoid person, but linseed oil scares me because I’ve seen this happen in real life. This stuff can and will cause fires if you don’t handle it properly.
Is OB shine juice a potential fire hazard then? It is only one third linseed oil so the risk is probably minimal. But do you want to take the chance? I don’t. The rags I used for this project were soaked in a material that contains alcohol, which is highly flammable, plus linseed oil which can spontaneously combust. Do you think I’m going to keep that in the house? I may be crazy but I’m not stupid (I hope). They were immediately dumped into a container of water and taken outside and they’ll end up in the firepit. Am I being paranoid? Maybe. Don’t care. I’m not going to take the chance.
Cleaning – ah, yes, cleaning… I was getting tired of not being able to find stuff and having to dig through all of the clutter in the shop. And finding piles of dust, dead spiders, cobwebs, bits of sandpaper, pieces of wood piled all over, etc. whenever I moved something. So I started cleaning up the shop and trying to organize things better.
And what do I do with some of this stuff? I have a $200 biscuit joiner that I used exactly once about 15 years ago that’s been gathering dust ever since. I have jigs that cost some serious money and were used once before I figured out that setting the damned jig up and doing test cuts to fine tune it took three times longer than just doing the job by hand. A half dozen plastic carrying cases for tools I don’t have any more (why didn’t I toss those years ago???). There’s an ancient Skil router with a bad collet that I can’t get parts for. I found three (three??? How did I end up with three???) scroll saws. A couple of dozen paper bags filled with screws and nails of every imaginable size. But of course none of them are ever the size I actually need for a specific project so I have to buy more. And then there are the bits and pieces that obviously came off of some tool, somewhere, but what tool? What were they used for? Should I just throw it away? Of course if I throw it away I’ll almost immediately remember that I really needed it…
And wood stuck away everywhere… Sheesh. But then is there even such a thing as having too much wood?
Anyway, it’s cleaning time!
2 thoughts on “Air Filter, Another Finish Experiment, Cleaning”
I hope that filter works out for you. It looks like something you could make yourself with a little creativity and a salvaged fan.
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You can indeed make your own and I have cobbled together several over the years, including the good old fashioned “duct tape a furnace filter to a box fan” trick. That does indeed work but you need to make a good airtight seal all the way around. There are some problems with that trick. The filters plug up really fast and that reduces air flow, and the reduced airflow can even cause the fan motor can overheat. This thing has much greater airflow, a big squirrel cage fan, much greater filtration area so the filters should last longer. And two stage filtration, a 2″ thick pleated filter plus washable fabric filters as well. I’ve been running both since I got the new one and it seems to be making a big difference
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