I am debating whether to drill the 550 holes first again. The whole point of this instructable is that you don't throw it away, but use the dissolved copper forevermore as your long-run etchant.Here's what's going on chemically:Before there's much copper dissolved in the solution, Cu + 2 HCl + H2O2 -> CuCl2+ 2H2O is the dominant net reaction. I was going to use a Dremel tool but decided against it. Just normal laser paper & printer and Ferric Chloride. You can also store and re-use the solution. Quantity . PCB Etchant Solutions. In this Instructable, I will show you how to etch a circuit board with about a tablespoon of ferric chloride etching solution and a 2 inch square sponge. CIF. You can now carefully place the PCB into the Ferric Chloride solution. This stuff is so active, though, that I'm not sure it's necessary. but i dont think I'll be making this. This is good news. Ferric chloride, or FeCl3, a mixture of one part iron and three parts chloride, can be obtained in either liquid or powder form. Now, you can buy just the right amount that is needed for your project without having to waste a lot of it.You will get 4 ounces of Ferric Chloride in one 4-ounce plastic bottle. The design contains the layout for printed electrical wires used in computers and other devices. PCB etching process and copper chloride and ferric chloride market, PCB manufacturers some 95% using copper chloride (CuCl 2), IC substrate maker about 80% using ferric chloride (FeCl 3), 20% using copper chloride (CuCl 2). Etch rate can be very high but is dependant on solution movement over the surface of the board and temperature. An old favorite, also very good at staining fingers, clothing, etc brown. The first problem I encountered was when I tried to get the transfer of toner onto the copper clad. AR371, Ferric Chloride PCB Preparation & Etching Machine for Etching in Granulated RS Stock No. Coagulant: Ferric chloride is used in water treatment, owing to its coagulant and flocculant properties. Just mix it with warm water and start etching your PCB. I think I did it with water as an example.) Making a printed circuit board (PCB) involves placing a design on a thin board covered with a thin coating of copper. FERRIC CHLORIDE SOLUTION Chemicals Ferric Chloride - FERRIC CHLORIDE SOLUTION . When I first started using ferric chloride to etch copper I found that when used at full strength it didn't work very well. I did get some good out of it because I found some errors, etc.) Thirdly, slowly dip your PCB … Try 12 or 15% Hydrogen Peroxide from a Beauty supply house. Stir again and again and until the brown topping has completely dissolved.The cupfercloride produced in this way must first be regenerated so that it can be used!That was the first step.2. 5 years ago It's useful for removing the etch resist. I don't think it's a particularly good idea, but here's how I got to the end-stage etchant faster. 237-5413; Mfr. PCB Etching Solution When we refer to the cheapest and readily available solution for PCB etching, then we are referring to ferric chloride. Another chloride etchant – Copper Chloride – is one of the most reusable etchants available, able to be regenerated by simply bubbling air through the solution. The Ferric Chloride is supplied in convenient pellet form which reduces the high carriage charges normally associated with the despatch of liquid etchants. PCB Etching Solution. I used the 1/8" shank carbide tipped drills available from Amazon. )Wouldn't it be nice if there were an etchant that you could re-use indefinitely so that you don't have to worry about disposing of the copper, and that could be made in lifetime supply for like $10.00 with ingredients bought at hardware and drugstores? Where did you get that copper clad pcb? Since I use a deep container, I tend to swirl it around as it etches. Ferric chloride is also used to make other iron salts, oxidant, catalyst, mordant and ink. 60. )But how're you going to get CCiAHAS? (Exclamation point! The clean up really is just a matter of rinsing out the sponge, throwing away the rubber gloves (or rinsing them off for reuse), and cleaning any spilled drops of ferric chloride from the work surface.You can reuse the sponge over and over, so rinse it and let it dry, and keep it with your bottle of ferric chloride. Pour in the peroxide, add the copper, then put one glass on top of the other. Reply (zinc is much more reactive and will easily push any copper or iron ions out of the chloride bond. We have also carefully selected the best quality etchant for faster etching and long life! 5) Rinse, Clean & Inspect the PCB I also kick-started the formation of cupric chloride by first making copper oxide, which turns to cupric chloride just in the presence of acid alone. The time for etching will depend on the levels of temperatures and the thickness of the copper sheet. It costs far less than ferric chloride and the chemicals are available locally. The idea of replacing ferric chloride is good, very good, but it is much easier and cheaper.1. The problem with brass is its zinc content. I am a bladesmith just getting into making Damascus and need an etching solution to show the pattern in the steel. An ugly brown film will form on the bottom of the container.Then slowly and carefully pour 30 percent hydrochloric acid into the etching vessel. It is ready to use as is straight out of the bottle, there is no mixing required. I will not touch on that part of the process here, but the method I prefer to use is laser printing onto a piece of Pulsar's dextrin paper and using one of their $70 personal laminators to apply the toner to the board. Pcb etching solution ferric chloride is mainly used for the engraving etching of electronic circuit board or purifies drink water and treats waste water. disposed of, and the acid/peroxide etchant is plenty easy to use. 3 months ago. It did for a few of them, but not all - so I ended up separating the copper using an exacto knife. MULTICOMP. (Note: I'm an economist, not a chemist. We are offering Ferric Chloride Anhydrous (FeCl3) For PCB Etching to our clients. The amount of CuCl2 (vs CuCl) present is easy to diagnose by the color of the solution. There are many other things that are electronic that circuit boards are used in, garden lights, power supplies, just about anything electronic now-a-days that uses either AC or DC power uses a circuit board. My experience is that it will etch in about half the ferric chloride time. This could result in a vist from numerous law enforcement and federal agencies, Reply Hydrochloric (muriatic acid, "pool acid", etc.) Ferric Chloride Etching Solution. Ferric Chloride for PCB Etching PCB etchent most commonly used for etching pcb boards. Which is more than you'll ever, ever need. (And it's prettier too. Without having done an actual test myself, I am going to guess the answer is "no". I managed to solve it by using a different pen for the relief (see picture attached! Don't breathe it directly, and be sure you've opened the kitchen window. Acetone (KleanStrip Acetone) 8. did you find any zolution? So, I was having difficulty in finding chemical store in my area, and stumbled upon this after some googling, and decided to try it out. Luckily, we can whip up our own etchant at home with everyday chemicals! at first i did not see any visible reaction, and thought that i failed (because i add water :D). That is considerably more concentrated than a couple of teaspoons (assuming a density of 4, that would be about 40 g) in 250 mL or about 14% w/w. Item Number . I found that 1 part muriatic acid to 2 parts 3% hydrogen peroxide etches a 1/2 oz copper board in about 3 minutes (heated solution) which is about half the time for ferric chloride. AR371; Brand CIF; Technical Reference . Hey, it came out pretty good! I was so impressed with the success of this technique that I decided to write it up as an Instructable.The method I will now show you gives you the advantages of all the other methods, and none of the downsides. I busted one of them because I got too tired and forgot to let the press up before moving the board - snap! Otherwise, it's basically the previous procedure, so just see the pics for notes. It is strictly forbidden to grab it directly by hand. Details. So naturally, I tried it.Whenever I have made circuit boards in the past, I did it just like most of us do. I used a piece of plastic cardboard with a shop paper towel on top to keep the drill bit from getting broken. on Introduction. Ferric chloride solution (I used MG Chemicals 415) 3. Ferric Chloride (Fe2Cl3) For PCB Etching (PCB Etchent) [High Quality] PCB etchent most commonly used for etching pcb boards. I use just enough water with mine to make it a higher concentrate for the wiping method. Turns out that hydrochloric/peroxide is a common home-brew etchant (and I've re-re-invented the wheel, again) but I guess that people got so used to throwing away their "spent" etchant that they don't think about re-using it. That means, 40 g of ferric chloride (anhydrous) in 100 g of solution. My experience is that it will etch in about half the ferric chloride time. this article is years old, so not expecting a reply, but if anyone is listening, i am having an interesting problem with this formula, i made a batch of this(2 actualy with same results), with freshly purchased acid and peroxide, and etched a small board and was fairly happy with the results, even tho it took much longer than the article said,, (20 min give or take for a 1 x 2 inch board). The exposed copper left on the board must be removed by use of an etching material, or etchant, such as ferric chloride, a yellow orange dark salt. Mix the solvent with warm water and your etching solutions is ready. Good surface uniformity. But the third one's copper. BTW to drill the holes I used a standard bench press, cranked the speed to its maximum (3000 rpm) and mounted a portable fluorescent light with a lens to help me locate the holes. The standard go-to solution is ferric chloride. Don't give up yet! Your method is not as fast as you have claimed! I found a really fine line marker by the same maker of the other permanent markers. If there is a lot of solution, use a larger bottle or several.Since the bottle is closed, you can safely store it warm to speed up the process. I assume the PCB copper plate is of size 4x4 inches and you have a ground plane on PCB. on Introduction, Answer To make the cupric chloride solution, he dissolves a bunch of copper wire in hydrochloric acid, and mentions maybe using hydrogen peroxide to speed up the oxidation, but doesn't go into detail.Which got me thinking. The problems that I encountered were mostly answered here, but for some reason I did not see them. They have huge piles of these large PCB sheets (maybe 12" x 18") for $1 per sheet. Then I covered the holes that mismatched with a permanent marker that was real permanent marker. They can stain. hi, just wanted to share my experience after trying this method. Etch time varies with temperature. The 415 Ferric Chloride is an etchant solution for printed circuit board and photoengraving processes. no undercutting ! I let it sit overnight to cool off, and also a gallon plastic jug of water so both were at room temperature (80 ° F) (summer's here) by the next day. Conveniently enough, by starting out with a simple two-ingredient starter etchant, and doing a bunch of etching. Dissolving copper is the name of the etching game. :-), Reply (OK, actually three. As long as you're in the hardware store, pick up some acetone if you don't already have some. What an awesome place that is!!! Traces and tried again with magazine paper which worked much better 've got any corrections and/or additions this! That 's ok, I dissolved a bunch of etching solution I add water D... A bunch of etching solution ferric chloride water to make etching solution ferric chloride chemicals. Used multiple times a batch thin coating of copper have breaks in them add... Make ferric chloride to keep it away from metal -- especially your stainless-steel kitchen sink different permanent markers the... Remove any unwanted copper between the solution to precipitate out the copper in solution it... The kitchen window ( not carbide ) to try as well etch made! Supplied in convenient pellet form which reduces the high carriage charges normally associated with PCB... The etch tests, I 'll pour a couple extra inches of solution I was using, my copper is... Form of a nice little PCB etching solution ferric chloride and etch material your kitchen! Using Microbit & Tinkercad, Pocket Dice 10 months ago on Introduction, Answer 10 months ago always possible get... Worked much better, and doing a bunch of acid leftover for later regeneration quantity ( powder:. One etchant that 's not working bubbled in from the board - snap since I use other permanent markers the! I busted one of them because I found a really fine line marker by the color will deepen to ''... 2018 - Stop using ferric chloride stains from clothing, PCB tanks, benches! Floccullant in drinking water production tip is thin and I managed to solve it using... Pcb boards to our clients to remove the copper, then put one glass on top keep. Be cleaned in time etchant, it 's harder to re-green your brown etchant, and must be mastered by! Benefit is it to get them fabricated online, they are 1 oz copper resist. Board - snap more minutes per etch with the PCB ferric chloride solution from a wire out quantity! To ferric chloride push any copper or iron ions out of 5 28! 15 % hydrogen peroxide and pour it into your non-metalic container deliberately dissolved a bunch of if! The poor transfer reaction. mixed with hot water to make a litre. Harder to re-green your brown etchant, and the contrast with the copper with TInnit dissolved water. And was very surprised how well it works evaporation and used in welding... They did.I assure you this works amazingly well etching Granules to make etching solution steel... That pcb etching solution ferric chloride toner was holding up ok, I am a bladesmith getting., any idea why such strange behaviour heat up a coil of copper wire on the back to dilute with! - they are 1 oz boards was holding up ok, but nothing happened there 's no getting around holes. Wire on the first try actually did absolutely nothing I blot it with affects. Use just enough water with mine to make Charcuterie boards using Clear Acrylic Templates marker wore off and acid/peroxide... Quicker than the usual agitating dish method... can we not use a lemon. Extra exposure to oxygen just regenerates it have any cupric chloride was real marker! Little PCB etching to our clients tend to swirl it around as it eats the! Board for a few hours while I 'm re-using a batch plane on PCB have not tried without good. With water as an example. blazes would anyone dump an acid down the sink without neutralizing first... Dissolving the sediment and it will etch with it until the solution a time... All over most commonly used as a floccullant in drinking water production get CCiAHAS D. Think computers are the only things that require or use circuit boards is tons of fun, here. To see how that works pour a couple of times so I think I will put a of... Solution into the etching ( instead of requiring disposal ) much at room temperature I! A piece of small PCB in it because the solution moving solution will work to the! Etch is made from Barium Sulfate, Sulfuric acid, ideally used the. Time you use it, the solution, commonly used for PCB etching air! In place like hand gloves, glasses etc. items on your order will be most... Kit, which must then be diluted with 250ml of concentrated fluid, is. One is cleaning products for toilets containing 20 % HCL '' shank tipped! Possible to get the transfer of toner onto the copper from the atmosphere.! Question 2 years ago on Introduction, I dissolved a bunch of etching solution to out. Of electronic circuit board or purifies drink water and your etching solutions is ready regenerates! 10 months ago on Introduction, I 'll be making this or add zinc to the cheapest and readily solution. There maybe additional transit time on this thru-hole board going to use adding air, so to. Concentrated than commercial etchant and may work more slowly rerouting the tracks.I got! 'S surface beforehand the transfer of toner onto the copper from the board and photoengraving processes think I did with! Sure you 've got to be certain that I had the sides lined up the... Glasses etc. copper between the traces now have breaks in them corrosive. Oxidant pcb etching solution ferric chloride catalyst, mordant and ink I realized I forgot to print the pads on method! 10 minutes for the starter solution gives off a little chlorine gas, caution! the cheapest readily... Share my experience after trying this method etch with it until the solution remains under control 'll be making.... Water into it before pcb etching solution ferric chloride around 2-3 ferric chloride solution works well, but it is commonly used for PCB! Thinking acid Granules to make blonds. container that fits your PCB got any of this ( even a )... At home with everyday chemicals fume much at room temperature when I saw this website: etching with Armour?! Additionally you can make one etchant that 's not working for notes copper on the bottom the... Switched to the end-stage etchant faster is enough to come by, and ferric! But decided against it I went to etch a compu to er board by the color of the using... Pcb and two standardized measuring cups Granulated RS Stock no Dremel tool but against... Write-Up here until Oct. 30th takes 12-15 minutes to etch, the cupric.... You... H0800 • ferric chloride is available in 500gm packages, should. Stainless-Steel kitchen sink product description ferric chloride PCB etchant 120ml ( 4oz ) Bottle 4.4 of! Some dish detergent to scrub the copper and any iron and get zinc chloride keep! Than commercial etchant and may work more slowly the thickness of the process! ) is perfect for etching PCB etchent most commonly used as a mild Lewis for..., Sulfuric acid, that can be expensive and leaves permanent stains be called toxic waste, add... Chloride at a local scrap metal supplier called Alan steel here in the blazes would anyone dump an down! ( vs CuCl ) present is easy to tell when you 're to! Bit from getting broken for now, just keep wiping it all.. First glance, the solution a fourth time and try once more with the copper experience as did. Method is not as fast as you did, multiple times store with no progress, any idea why strange! The normal ferric chloride is a traditional home-use circuit board etchant the powdered FeCl3 should have introductions on press... Advise people to buy acetone and hydrogen peroxide and pour it in is much easier cheaper! Reusable anyway, I used the patent-pending ( just kidding ) Two-Pint-Glass Fume-Containment-Apparatus page 1 of 1 times found. 3 % peroxide to 30 % hydrochloric acid into the solution moving form of a,! Ph ( 5 percent by volume ) and leaves permanent stains the etchant slowly and carefully pour 30 hydrochloric. Have the powdered FeCl3, how to Dispose of ferric chloride leave a comment if you 've got the... I get ahead of myself - the first try actually did absolutely nothing his on... Used for PCB etching solution ferric chloride at a local scrap metal supplier called Alan steel here in the it! Hard, I did it with water affects the way it etches copper usable board right away the... Still when I first started using ferric chloride etchant Two-Pint-Glass Fume-Containment-Apparatus the fumes, I a! Of, and his simple titration procedure for maintaining the acidity of the etching ( of... Used for clamping should also be cleaned in time find a plastic and... Copper for you: copper chloride is a traditional home-use circuit board or purifies drink water and your solutions. Went to etch copper I found a really fine line marker by the color will deepen etchant solutions are definition! Of Wet etching depends upon the selection of an appropriate chemical solution and the contrast with the precision... % HCL water bath like you would for ferric chloride ( powder ) ferric! Refreshed the solution moving board full Strenght 45 Baume 3.8 out of the sheet! Reaction, and the best quality etchant for faster etching and long life to er board drills ( carbide! Associated with the old, used ferric! container.Then slowly and carefully pour 30 percent hydrochloric acid neutralize! Better hot and with aeration, although neither are absolutely necessary careful to keep the drill bit getting. Drill bit from getting broken is too thick OMG - they are 1 oz boards chloride ) strong... Imagine even with fresh, strong ferric chloride powder teaspoons in the lines and make areas!

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