Magnesium (Doan) Fire Starters: Good? or bad?

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Jul 27, 2006
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Love em?
Hate em?

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Seems there are mixed opinions on these little devices.
I have found them to work fine. They are not "magic" however.

They are made by the DOAN company, but sell as Coghlans, and other brands.
They vary in price up to $10 or $12, which is a total ripoff.
Check around, you can find them in the $5 range all the time.
http://www.campingsurvival.com/avsurfir.html

The magnesium firestarter was developed for US AirForce/Military survival kits, and is basically a block of magnesium, with a hole drilled for a chain, with a groove cut in the edge, and a small fero-rod glued to the block. They don't come with a "striker" (unless an aftermarket firm has included one), a knife (spine), hacksaw blade, or some kind of edged metal usually make the best items for striking against the fero-rod.

Upside:
Quick ignition
Burns even if wet
Burns very hot (4500°)

Downside:
-Burns very fast, poof, a few seconds.
-Takes a good bit of scraping to get enough mag shavings to ensure your tinder catches.
-the fero-rod is small/short, and being attached to the block, it can be cumbersome trying to hold it right next to your "target" striking area.


The magnesium shavings burn fast, like in a couple seconds they are done.
It is imperative you have your tinder ready, right there, to take the hot but short-lived flame created.
I have also found that if you can cut a couple slivvers, curls or micro-chunks, you get a longer initial burn, maybe enough to actually move your tinder directly over top of the fire.

The rule of thumb is that you need a circle of mag shavings same diameter as a penny. Some will say Quarter, dime, nickel...pick your favorite coin (hint: silver dollar is a overkill, but would make a nice little mushroom cloud). :eek:

SAFETY
-Magnesium burns white hot and gives off damaging UV light. Staring at Magnesium based fire can injure your eyesight, it's like watching an arc welder.
This is particularly important if burning actual solid chunks, which will burn longer. :cool:
-Don't breath the vapors created by ignition. This is common sense, but, remember you will be almost directly overtop of the ignition when it happens, so, in your delight don't inhale the gasses. :barf:

HOW IT WORKS
I think of magnesium more as a Firestarter not a tinder, per se.
I think of tinder as something that takes spark or flames, and continues the combustion process to achieve a lasting flame. Magnesium filings are closer to burning a match head , than lasting tinder material, UNLESS you have a chunk or pieces of it.
A solid piece of magnesium, the size of a pencil eraser, will give you a little more sustained burn time.

Trouble shooting:

IGNITION
If you are having problems getting ignition from a spark, it is most likely one of a few things:
-Not enough magnesium shaved off to provide a good target to catch the spark.
-Not small enough small particles, this would be if you had large slivvers or "curls" they sometimes need some smaller granular magnesium material to get the process started.
-Lastly, as mentioned above, bad striking form, in part due to the awkwardness that can sometimes occur due to the shape of the block.
Some people will cut the bottom corner off, which allows the fero-rod to be a little closer to the target area.
Magblock.jpg

Save the piece, or rather than simply cutting it off, do your shaving at that corner and it will slowly take that shape.

PROBEMS PRODUCING ONGOING FIRE
-This is a function of tinder Quantity/Quality, and the Placement of the tinder very, very close to the pile of magnesium shavings.
Just like a good Paintjob, it's all in the prep work*.

*(This is probably the NUMBER 1 reason for "Fail to get a fire going" regardless of the method of ignition.)
I've watched campers play havoc trying to get a fire ignited, because they think a match and a piece of paper will instantly ignite their 1 foot diameter log.

Always have 3x the tinder you think you need, I just learned that saying recently, and it sounds like very good advice. Who hasn't watched their initial flame dwindle, then scrambled quickly for a little more tinder to keep it flamed up? Again, the Prep is important.

Methods

Some people will place the magnesium on a bed of dried leaves, or even make a "mat" out of strands of fiberous tinder, so that when the magnesium ignites, it instantly transfers heat and flame directly to the tinder, since they are touching each other.
Others will build a "nest" of tinder, a tinderbundle, place it on a rock or fallen tree, or piece of bark. They make a small "doorway" or hole in the bundle , place the shavings there, so that when they ignite, the tinder is right there, again, no more than a couple mm's away to take the flame and burn.

The Carbon steel hacksaw blade (sometimes sharpened on the back side) can produce small Magnesium "filings/shavings", as well as produce good sparkage off of the fero-rod that is glued to the magnesium bar.
A shortened round chainsaw file also wil produce fine "filings" and produce good sparkage on the rod. The spine of a knife is the age old sparker, as well.

WIND
I've read that Mag shavings can blow away in the wind?
So can tinder. Wind can blow out a match, even a Bic lighter. If you are in windy condtions, again, it's all about Prep.
Get out of the wind!! A rocky outcropping, or a fallen tree can provide a less windy place to start. If there is nothing natural around you to shelter the wind, you will have to build your own windscreen, from rocks, snow, your jacket, your backpack, or even you might have to dig a hole. Wind is going to cause problems far beyond the initial ignition of a fire , so it's best to take care of it up front, just as you will prep your tinder and fuel.


In 40 years of camping and hiking I have started my fair share of fires , and had some duds along the way.
I don't profess to an "expert"at anything, just wanted to share some things I've observed first hand, read about, and learned right here in W&SS.

MY STYLE:
This is what works for me, if you do it differently with success, that's all that counts!!

-I use a hacksaw blade and/or a broken off piece of round file.
-I toss the linked chain and use paracord. If using a hacksaw blade, attach it, with the paracord.
-In spring/summer I use a green leaf to shave the pile onto, then I dump it in my target area. This way i can have my fire site set, with tinder, but sahve the block in a more comfy spot, like on a downed tree, or big rock. In the fall, a piece of tree bark can do the same.
-I do the PREP of tinder and fire site before shaving any magnesium.
-I dump the shavings onto a very dry leaf or two, next to/just underneath the tinder pile, where sparks can still spray down at a 45° into the pile. If dry bark is available, I'll put the whole set-up on a peice of dry bark. Especially in late Fall and Winter, I find that the Cold conducting off of the ground can really suck the heat out of a new born fire.
-If the tinder starts burning, but then losses flame, you can still "blow it" back up, well, at least sometimes.

The MagBlock is not an automatic firestarter, I don't know if there is such a thing. What it IS, is an ignition catalyst.....it bridges the gap between fero-sparks and natural tinder, which, if you have chosen correctly and conditions are favorable, you should be able to get ignition without any magnesium, If you can't get it done WITH the magnesium, it's probably not the magnesium, but the expectation that the Magnesium is gonna do ALL the work, which just is not the case.

PREP PREP PREP

Last thing: and this goes for all fire making, even Bic Lighter :)
Practice, actually try it!! :thumbup:
Until you are confident you can make fire 100% of the time with your various kit items. A survival situation is no time to learn it. It should be second nature. This goes for any and all methods of fire building one plans on potentially using.

Hope this helped someone.
 
I agree with everything you said. I was misinformed about these things. I was under the assumption that the magnesium was going to work like a tinder. Boy was I surprised when the flame was gone in a heartbeat. I think they are a decent fire starter, but definitely practice with one before you really need it.
 
I agree with everything you said. I was misinformed about these things. I was under the assumption that the magnesium was going to work like a tinder. Boy was I surprised when the flame was gone in a heartbeat. I think they are a decent fire starter, but definitely practice with one before you really need it.

Thanks Trout! wise words. I think they could do a better job to indicate this is more like a match-head, not a match stick. Makes a nice little hot 2 second flash-fire, but if you blink you'll miss it!

If I had to pick one BIG reason to have this item, is that fact it will ignite and burn even when Wet. :thumbup:
 
Good write up, and thank you for it.

I wouldn't say that I'm in the "Hate em" camp, but I will say that I never carry them because I find other alternatives have all of the same advantages, to a greater degree, and fewer of the disadvantages.

You can find some of my thinking on the subject on this page:

http://www.mikespinak.com/articles/Essays/e996thepsk.html

(You'll have to scroll way down the page... sorry. Also, please note that this area of my website is not nearly finished.)
 
Certainly not the BEST, but they do the trick. I used to play with them as a kid. I would drill a ton of holes in the magnesium block with a small drill bit and spark the big piles of "curlys" left on the drill press. Just a thought, isn't magnesium poisonous? I mean, i know the smoke is but is it dangerous to be handling it and ,say, rubbing your eye afterwards?
 
Good write up, and thank you for it.

I wouldn't say that I'm in the "Hate em" camp, but I will say that I never carry them because I find other alternatives have all of the same advantages, to a greater degree, and fewer of the disadvantages.

You can find some of my thinking on the subject on this page:

http://www.mikespinak.com/articles/Essays/e996thepsk.html

(You'll have to scroll way down the page... sorry. Also, please note that this area of my website is not nearly finished.)

Great work on that page, and the site. Tons of good info!! :thumbup:

Question: Where do you find the larger bags of Tinderquick?
I can only seem to find packs of 8 or 10.
 
Certainly not the BEST, but they do the trick. I used to play with them as a kid. I would drill a ton of holes in the magnesium block with a small drill bit and spark the big piles of "curlys" left on the drill press. Just a thought, isn't magnesium poisonous? I mean, i know the smoke is but is it dangerous to be handling it and ,say, rubbing your eye afterwards?

Actually, magnesium is found all over nature, and is a trace element we need in our diet. I wouldn't put any in my eye, but I don't think it's anything like Mercury or Lead.

Anyone have a definitive on this?
 
Thanks.

Click on the words right below the tinder quik picture; it is an active link to where to buy the larger bags.
 
I've admired your photography since I first joined this site, evolute. and now I have still another reason to leech your site's bandwidth. thanks for that, theres some real good info there.
 
I really like these. They work well, even when wet, and burn at 5,400 degrees. The magnesium shavings are a tinder. Tinder is just something that will ignite by just a spark. The Doans brand is supposed to be the best, as other brands have had problems in the past of the fire steel coming off of the magnesium block. Although this problem may have been corrected now?
 
as always great post skunk! :thumbup: very good summary.

Still don't if one is worth the weight in a PSK...storm-proof matches, bic, flint, mini-butane torch and tinderquik tabs are what I have, for probably about the same weight...
 
I have never bothered using one of these devices previously. Fire is so important though that I will be carrying 3 different ignition souces outdoors, including a mag block. I tried my new block out a few weeks ago and it went exactly as you wrote. A very short lived ignition source. I used a broken off piece of hack saw blade to scrape, shave off a whack of mag dust, then stroked the ferro bar end twice to light. I tried my SAK and it gave off a couple of limp sparks. But, using the chunk of saw blade I got an intense shower of sparks for ignition. Im not bowled over by the performance of this little unit, but I do feel that it is a usefull back up. I now keep my SAK in my outdoor bag as opposed to on my keyring as before and have the mag bar on the ring instead. A mag bar on my keyring is lighter than the SAK and also allows me to give better reason to the police about my EDC folding knife. I can just say that its a fire starting package that I keep on me as Im in the country quite a bit. My thinking is that the mag bar will justify the folder to the city police and it is simply a good item to have at hand regardless.
 
as always great post skunk! :thumbup: very good summary.

Still don't if one is worth the weight in a PSK...storm-proof matches, bic, flint, mini-butane torch and tinderquik tabs are what I have, for probably about the same weight...

Thanks.
I think it's a personal choice what to carry, I'm certainly not trying to sell them.

I posted this after reading in the "What Doesn't work" thread, I saw more than one reply giving them a big thumbs down.

While there may be better/other things out there to use, these actually do work. Again, boils down to preference.
 
I always carry waterproof matches, a small lighter, and a Doan's Mag fire starter. The magnesium fire starter will make more lights than the lighter and the matches, I carry, put together. If you have ever tried to get a fire going in the middle of a storm in the woods, then you will know you can go thru a lot of matches real quick. A mag fire starter is in every U.S. Air Force survival kit. Yes, I would recommend you practice with it before you rely on it, but it works, and is cheap. One problem I found when I first started using them was I did not make a large enough pile of shavings. Once you get the feel for it it's great. Also, I scrape the pile of mag tinder onto traditional tinder, and boy it really quickly lights the traditional tinder. By traditional I mean wood shavings, crumpled leaves, cattail down, lint, shreded cotton, etc... Try it it works.
 
Magblocks as far as I am concerned are 100% madatory for any kit as they last forever. Never go bad and have the fuel and ignition source in one unit. Not so with anything else but lighters. For this reason the military includes them in there kits.

Been using them for 25 yrs and takes me less then 5 mins to get a fire going with one no problems.

It is not idiot proof however so practice is needed but once you master it you will like the durability and reliability of the unit.

I cut mine down smaller to lessen weight and bulk.

Skam
 
Magblocks as far as I am concerned are 100% madatory for any kit as they last forever. Never go bad and have the fuel and ignition source in one unit. Not so with anything else but lighters. For this reason the military includes them in there kits.

As I've noted other times when you've said this, it is not the only one that lasts forever, never goes bad, and has the fuel and ignition source in one unit.

Here's an example of another:

http://www.the-firestarter.com/store/Scripts/prodView.asp?idproduct=15

I home make my own one piece firestarters out of firesteel and fatwood. Easy to do, and I consider fatwood to make a superior emergency tinder to magnesium.

And, as I've mentioned before, this is actually also the case with just a ferro rod. You can gently shave off the ferrocerium, and then light it with a spark, very similarly to lighting magnesium... so even with just a ferro rod, you have a single unit that lasts forever, never goes bad, and contains both the ignition source and fuel.

P.S. Thanks, roughedges!
 
Magblocks as far as I am concerned are 100% madatory for any kit as they last forever. Never go bad and have the fuel and ignition source in one unit. Skam

I totally agree. SkunkWerx's review and how-to is the best I've seen on the pros and cons, thanks man. About the small piece of round file, that's a good idea. Not to make too much of a project out of it, but it seems to me you could anneal one end of the file chunk and drill a hole in it, put it right on the keychain? Anyway one of the reasons I chose the multi-tool I finally settled on, it has a file in it. I figure it will be good if I put a big ding in a knife, and to get nice, almost powdery magnesium bits that are (relatively)
easy to light.

It's true that it can take a while to get a decent pile of shavings. I imagine you could prepare some ahead of time and keep them in a small vial. The drill-press idea someone mentioned would be good for that, as well as some filings. There are safety concerns on this though, you now have a rather large firecracker in your pocket! (Magnesium is a common ingredient in fireworks IIRC)

I cut mine down smaller to lessen weight and bulk.
Skam

Check this one out, I got one and like it a lot. In fact the next time I put together an order from them I'll get a couple more so I can stash 'em in kits and whatnot. Complete with a steel striker/scraper, it slips in right next to a sharpening stone in a little pouch on my sheath. Hardly seems to weigh anything.
http://www.campingsurvival.com/stmak7mastma.html

One caveat about them, when you get a mag block or rod, throw it on the floor a couple times and see if the ferro-rod thing pops off. Both my blocks did come apart, the little rod did'nt; I got a lucky one probably. Anyway I just superglued them back on and they're good to go. Sitting at your desk is the time to find out :)
 
I`ve got one of those, but i never could get the magnesium to work just right. Oh, it`d burn.. Sure enough.. With a flash.
But the small filings just scatters all over, not to mention if it might be dark, and you`re cold and wet.

So i just popped the ferrocerium rod out of the magnesium block, and carry that along with a few other items, in a small psk in my pocket.
(I had to shorten it slightly, to make it fit.)
482iszl.jpg


I really like fatwood. It`s easy to shave, and it smells nice too. Magnesium just... Well... Doesn`t. :rolleyes: :D
(I have been thinking about adding a small jar or vial of magnesium-shavings to carry though. Cause it sure burns hot.)
 
I got my first mag block when I was 14 or so ,boy was I disapointed I thought I could scape a little magnesium on a leaf,prop up a few sticks and have a fire.:o

But after learning how to use them properly I'll take one over matches any day.I either carry a ferro rod or magblock along with some tinder(just in case)
any time im in the woods.

Like Skunk said,it's all about preparation:thumbup:
 
Thanks to Skunkwerx for taking the time to write such a thorough report on the mag block. Lately I have been leaving the mag block home and replacing it with my own homemade kit consisting of some wood match sized fatwood, ferro rod with hacksaw blade and some sanitizer soaked cotton balls sealed in a very small zip lock parts bag. I also toss in some char cloth as well. If the kit hits the water and the char cloth gets wet, I still have the cotton balls. The sanitizer is much easier to work with than the old standby petroleum jelly, aka Vaseline, at least for me. The whole kit takes up about as much space as a mag block, but I feel more confident than I ever would with just a mag block alone.
 
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