Melting silver to repair jewellery

Hello everyone, Iam a disabled pensioner living in Australia. I have a few pieces of silver jewellery where links have opened, and require "soldering". A jeweller has quoted me $40 each repair. I have a 3 inch square of silver sheet left over from a jewellery course I took years ago, and want my husband to melt it on the links for me. He has tried a hand held soldering iron and also a blow torch, neither worked. Please can someone advise us what else to try ? They are only minor melts required, but we cant make the silver molten in our garage. Many thanks

Posted by Charmy666 5 years ago

I'm melting

I recently got some thin PVC plastic for cheap.  I would like to soften it so I could shape it, but I have no idea what temperature to do it at or what to use to heat it.  I don't want to spend money.   Thanks!

Posted by elliot5445 4 years ago

Homemade Electric furnace current question

Good day viewers! I recently found out about the wonders of electric furnaces, cheap to run and no smoke. I went looking around for some designs, there are some nice i'bles about it and I got very exited since my neighbours already start nagging when I strike a match, an electric furnace would be the perfect solution. I decided to go with kanthal wire, its relatively cheap at a few bucks per meter, and it can handle temperatures up to  1300C. I plan to melt alluminium and maybe some brass so I should be fine with that. now to the questions part, I have an ATX PSU with a 12V 16A output (DC), I was wondering how many (centi)meters or inches for the americans under us, it could power (if I can power it it would eventually go up to full temp right?) I am a complete nitwit at these Ohms formulas and electric furnaces, at the moment I am abstaining from sleep to build this furnace and I am sure that others are as well. I hope some nice fellow diyers can help me with it. This could be a dumb questions, maybe I need a wall outlet (230V in my place) or maybe I need some rocket science. I don't know, do you? kind regards and a thank in advance from 2 young exploramenters that want to melt some metal without ruining our lungs. excuse us for spelling mistakes, this written by non-native speakers and with shaking hands,...

Posted by JStuyfzand 2 years ago

Induction Heat used to melt glass and other metals

This is the start of an intended discussion about using induction heat to melt glass and other various metal.

Posted by JuxtaposedIToldYouSo 7 years ago

Soooo... How 'bout that Cubic Zirconia, eh? [Most Likely DANGEROUS]

So I was just browsing Wikipedia when i fell upon the page about Cubic Zirconia. It turns out, that the basic principles of synthesis don't look all that complicated. So I was wondering, if anyone knew of any plans for a small skull crucible that were floating around the net.. I probably wouldn't use it for zirconiua, seeing as it needs around 2700 degrees Celsius to change structure (this is the dangerous bit), but it might be a fun introduction to induction heating. Also, it's a pretty awesome way of eliminating the need for a refractory when melting stuff (keeping a solid layer of the material as a shell instead). I think I could build most of the parts, but i don't know what frequency, how many windings and such would be needed for the coils. Also, if anyone knows of any other risks than the obvious burn hazards, I'd be thankful if you'd tell me before i go off and get killed trying to make this. Let's discuss! :D (Also, Skull Crucible is just about the most awesome name for anything ever).

Posted by huldumadurin 8 years ago

melted ice

If I ask you for melted ice and you come back the next day with plain water have you behaved unethically?

Posted by uncljoedoc 9 years ago

US no longer melting pot, to be politcally correct

I heard today that to be politically correct the United States are no longer considered to be "a melting pot". I don't remember what it is now or where that idea came from though... but its no longer "a melting pot".

Posted by wingman246 10 years ago

melting zinc into iron

Hey guys, can you suggest me a way to melt zinc into iron? for making alloy of them... thanks

Posted by bob 1492 3 years ago

HELP!!!!! Non-melting adhesive??

Does anyone know an easily accessible adhesive that will neither melt or conduct electricity?? I'm using it for the cotton candy machine, which by the way, is really close to completion!

Posted by T3h_Muffinator 11 years ago

Melting plastics with heat gun?

Hello!  I'm attempting to make a costume and I need to make bubble eye caps. Could I use a plastic bottle and heat it up so that it'll melt partially?

Posted by Sedatephobia 3 years ago

teflon ( ptfe ) tape melting how to

Hello, I am looking for a viable way to melt some teflon tape so to form a sort of spiraled tube . I am thinking of wrapping it around a steel tube and heating the tube up to 600 °F  or such . How should I heat the steel tube so to melt the teflon not  permanently bonding it (teflon) to the tube surface ?

Posted by gabdab 8 years ago

Who Here Has Melted Aluminum?

I had my dad weld up an ingot mold out of 1 1/2" angle steel, yesterday, and I started wondering. How many people have melted aluminum here? I have, but here its so hot (Florida...Southern Florida.), that its almost unbearable to melt it anymore. I'm getting into sand casting, and I was wondering if anyone had experience in that area. My .gifs are of my foundry, and how I made it. (they aren't exact)

Posted by John Smith 10 years ago

Want to melt old used galvanized nails and pour or shape into a large star mold.

My grandson recently tore down a very old building for the wood to build his first home.  I undertook the job of pulling hundreds of nails from the old lumber.  I want to melt the nails down and pour them into a mold of a Texas star.  Is it possible to melt the nails?  and if so; How? 

Posted by dpresearch 6 years ago

ice melt. NaCl, MgSO4, CaCl

Http://  thought about running a chainsaw to remove ice from roof gutters. rethought that. sodium chloride? corrode metal gutter and hurt plants. mag sulfate?   have it on hand, but above link indicates it wont work. would it work if baked to drive off h2o?  stuf comes hydrated. calcium chloride? directly on metal?

Posted by Toga_Dan 3 years ago

How can you NOT be melted on the spot???

If a Bolt of lightning is 30,000C and someone gets hit by it how can they not get vaporized on the spot?? I mean that HOTTER than the sun.

Posted by TheDeadChemist 10 years ago

Experience with the Flexil/Vinamold/Gelflex hot melt vinyl rubber?

Hey again,Does anyone have any experience with this Flexil hot melt rubber stuff I've seen about. It's a vinyl rubber that you melt in a pot around 170 degrees and then pour it over masters and formers to create moulds like you would with RTV silicone (except quite hot). The rubber can be remelted which is a benefit over silicone, but does anyone know of reasons why silicone is better for making moulds with (other than the master possibly melting).Link here:, CFS is also a good place to buy pretty much all casting and moulding materials if you're in the UK at somewhat reasonable prices :-)

Posted by chiok 9 years ago

Melt and Mold Plastic Grocery Bags

Hi - I have been crocheting, knitting and sewing with plastic bags for several years.  Now, I'm wanting to try something new with the plastic bags by molding them into beads, brooches and other fun stuff. Can you safely heat plastic bags to be moldable?    Thanks for any help I can get..... 

Posted by crochooley 7 years ago

Melted plastic lamp

Hello. I found this hanging lamp at a garage sale, had to have it... Cannot find any information on this style. Looks homemade, melted plastic strips. Does anyone have any information you could share with me? How it was made? Maybe when making things like this was popular? Was it possibly mass produced? They kind of look like Fruit RollUps....Anything at all would help. Thank you.;=pcb.601760483191616&type;=1&theater;;=pcb.601760483191616&type;=1&theater; Couldn't upload photos with the uploader.

Posted by Darjega 5 years ago

Does electical tape melt easily?

I've coated my usb (the circuit board, split the case) in electrical tape, but the USB gets warm (as expected. Will this damage my USB, despite the fact that it's a useless 128mb one anyway?

Posted by Noodle93 10 years ago

Heating Element for DIY Melting Point Apparatus

Hi Everyone, this is my first post on this site!  I am seeking advice to help me construct a home-made melting point apparatus (M.P.A).  A melting point apparatus allows it's operator to determine the melting point of a chemical sample by heating it in a controlled fashion and noting the temperature when the sample melts.  I have most of the design made up in my head, but I'm not sure as to how I can obtain the proper heating element.  The heating element I am seeking is an emulation of the M.P.A.s heating elements in my school's chemistry lab, which look like this: a metal block (about 3cm tall by 2cm deep by 3 cm wide) with vertical holes bored into the face with a pane of glass pressed against said holes so a glass capillary tube (containing the sample) can be slid into the bored hole and viewed through the glass pane as the sample is heated by the metal.  Another hole is bored into the metal, adjacent to the sample hole, for a thermometer.  So again, my question is do you have any suggestions as to where I could by a heating element like this?  Or, any suggestions on how to build one?  I have a jewelry shop at my disposal so I can probably bore any holes myself.   Any suggestions will be appreciated, thanks!

Posted by Das Horse 6 years ago

What is the melting point of molded plastic epoxy ?

Hello. I would like to know what is the melting point for most integrative circuits epoxy molded plastics ? The kind of plastic I am talking about would be the ones used for BGA chips found in smart phone IC's (integrative circuits). I would think that a decent powerful household kitchen microwave should have enough power to melt this type of epoxy material used for BGA IC's. I would like to de-cap the BGA. PLEASE note that I will be using a cheap throw away kitchen microwave to melt the IC and the BGA is not important even if the heat generated damages the die layers made of silicon. This is strictly for hobby purposes. The same question but does anyone know what kind of metal is the bottom part (the tiny metal circles ie solder balls) of a BGA IC made from ?

Posted by victor43 3 years ago

Melting Tin Alloy to make pendant jewelry

I've made several attempts to melt down a tin alloy metal (92% tin, 8% antimony) to make pendants; small pendants for necklaces. I haven't had any luck with this at all!  The mold has been cast - the metal has been chosen process isn't working. I'm using a hot plate and a small teflon pan to melt the metal. The problems I'm running into are: Once I melt the alloy, I can't get it into the mold before it starts cooling.  It pours out too quickly from the pan, then cools too quick to finish pouring.  It's a small mold (1 3/4" diameter with 1/8" lines) which isn't helping I'm sure.  Not sure on a couple things I'm hoping somebody who know more about this than I do could possibly make some suggestions. I don't know if I should be using a flux to keep the metal clean because it is getting dirty after the melting. I don't know how to get it from the pan to the mold before it cools? Someone, I'd imagine, must have come out with a tool for transferring small amounts of metal to molds.  I tried a glass eye dropper today but didn't have any luck with the transfer process.  Not sure if a crucible and flux is the way to go or not. If so, does anybody know of a good company that has items designed for this type of work? Any and all help / info / suggestions would be greatly appreciated!!  Thank you

Posted by Vince11 2 years ago

Melting Steel with the Sun

Now I'd like to see an 'ible on that! A very neat contraption indeed! The only thing that was weird, was when he described a hot-dog. "Traditional, American, lunch-time, hot-dog, snack."  Very strange.      Link via Boing Boing

Posted by nickodemus 8 years ago

Need help with home plastic smelting

I want to reuse some of the stuff that I've been throwing (bottles, plastic bags, etc) as well as plastic casings (from radios, CRT monitors, etc). Hope to melt/ mold them into usable parts.. What items in the garbage that are best suited for this? Something easy to work with at home / garage (low melting point, doesn't produce that much toxic fume, and the like) Btw, I've tried melting soda bottles, too sticky to work with... Any suggestion, help is greatly appreciated..

Posted by gyromild 11 years ago

Looking for salt free ice / snow melt

Hi all, I am looking for an ice/ snow melter that won't harm concrete or other surfaces, is safe for pets and can be easily made from household products or at home. I would like to be able to apply it before or after ice forms. Thank you

Posted by feign 11 years ago

Zapping bricks

I zapped a common red brick with a very powerful beam of light. Here is a picture where you can see the area that was melted. The melted area was actually so hot, it was bubbling! I’m wondering if I should make an Instructable... or is this just too dangerous. OMG anyone?? ~Bob~

Posted by ShutterBugger 6 years ago

Induction Heating

High frequency induction heating is basically a very efficient way to heat ferrous metals. Induction heating uses an powerful magnetic field to induce currents within the surface of the metal being heated. This means that the coil will not get hot unless the material being heated transfers heat to it. Induction heating is very efficient because no heat is wasted, no heat is wasted because the coil does not produce heat, the heat comes from the workpiece being heated only.

Posted by lyzyrdman 9 years ago

could someone make an adaptor for my hot glue gun to melt zipstrips

I want to make an adapter for my hot glue gun to melt zip-ties that way i can turn them into filament for my 3d printer. just saying... If it could melt zip-ties and make filament why not use it to melt pop bottles? I could cut the top and bottom off a pop bottle and slice the sides up in a paper shredder then take the shreds and put them in  a hot glue gun to make the pop bottle into filament for my 3d printer. a little help please ? / what would I need to do to make this? I have the ability to print anything if someone could help design it. I wll share it with EVERYONE !

Posted by Tormentory 5 years ago

How can I make a simple soap noodle melting, mixing and grinding machine

Hi from Honduras! Our currency is way down and it's very hard for us to import even simple small machines. I am a women with physical disability and have started my own homemade soapmaking shop. It is very hard for me to be hand mixing, grinding and melting ingredients such as herbs and soap noodles and/soap bases. These simple acts does put a toll on my hands and arms. Can anyone aid me? I appreciate your comments. Gilda

Posted by amparosinlimites 10 years ago

Sulfur and Tin did not mix ... (trying to make DIY phosphor)

Hi ...Here is an other "failed experiment" ...I tried to mix Sulfur and Tin with the hope to make a ZnS phosphor ... (Yes, I know ... I confused Sn and Zn)So, indeed, when I poured some Sulfur powder over my melting Tin, the Sulfur melted, boiled and vaporized ...Ok. Now my question : If I pour some Sulfur powder over melting Zinc, will Sulfur vaporize, or will I get some ZnS ?(actual question : is there a simple non industrial mean to make ZnS phosphor ?)=o]

Posted by chooseausername 10 years ago

sodium production

Another way for sodium production heared some where that molten sodium acetate  produces sodium metal, carbon dioxide and ethane Sodium Acetate baking soda and vinagar melting it and doing electrolysis to make sodium Melting point 324 °C, 615.2 °F (anhydrous)<(no water)> 58 °C (trihydrate) still has water Sodium Hydroxide Melting point 318 °C, 591 K, 604 °F ive made sodium with lye very useful thanks alot to this video message back on what you think

Posted by symboom 8 years ago

My PROPANE (!) Foundry

Hey, I'm sure you've read some of my other foundry questions and comments, so here's another. I have been using this with charcoal briquettes for quite some time now, and finally built a burner to convert to propane. I made my first melt with it earlier, and I don't think I'll ever switch back, no matter how high propane gets (price). I built a burner according to the instructions here, and it turned out fine, except that the flame won't leave the burner tube completely. It fits pretty well in my helium tank foundry/furnace (a .gif on how I made it is below), heating it up to melting temps on full blast in probably <10 minutes. It is SO much cleaner, easier to make multiple melts( no refilling charcoal), and is alot quicker in starting and finishing a melt (no setting up blowers, positioning charcoal, and that stuff).It was (at first) an easy choice to go with charcoal (cheap, could even be made for free), but after a couple melts, the fun got replaced by work, and I stopped melting metal. I discovered propane, built my burner for $35 total(including regulator) and was up and running within a day. ~$20 for a refill on propane when I run out is COMPLETELY worth it. Sorry if this seems kinda persuasive, but I am trying to help either people on this site, or one of the countless wanderers from Google.Some pictures of my testing (not my burning setup) setup are below.

Posted by John Smith 10 years ago

Anybody know the Melting point of K'nex?

This probably looks like a really strange thing to ask, but I need to know what kind of temperature K'nex can endure before it softens and/or looses shape.  I am building something which will need to be able to withstand hot water/steam splashing onto it (but not  submerged in it), as well as being near a considerable heat source.    I've look for what they are made of, but nothing has come up, though I presume they are made of a mix of low-to-mid-temperature polymers with a  high toughness.  Don't get any mad ideas!!! Image is from Bartboy's candle rocker. 

Posted by TheFoofinator 5 years ago

Recycling Soda Bottles Experiments

Test 1: heat gun, "high setting"  Plastic Coke bottle SOFTENS + shrinks                                                                  -  at about 250F * Test 2: Heat gun " low setting** " Plastic coke bottle MELTS enough to  make gooey threads , and bubbles   -   at 450 to 500 F *according to a cheapy harborfreight laser thermometer. Not sure just how accurate it is in the 250  to 500F range. This device seems to read 5 degrees high at the 100F range. ** ironically, the temp is higher on the "low" setting. When the fan is moving less air, that air is hotter. One of the tricks, I imagine, might be to fully melt the plastic without burning it.   Suggestions welcome. Further results will follow.

Posted by Toga_Dan 4 years ago

A Good Crucible

Im new to the forge community and i need some advice. I built my first forge useing the charcoal and coffie can method. i melted about 20 or more cans so far and got about 86 grams of aluminum. The crucible i used was a soup that i burned through. I done that twice. While melting I got a lot of slag. Is that normal when melting cans? I also need a good crucible. What can i use for now and where can i get a good one later. I plan to make a propane forge in the near future so a few tips here would be helpfull as well. Any and all advice would be helpfull. Thank you in advance ~Jeht Black~

Posted by Jeht Black 10 years ago

Soldering Wires to a Battery

So...If I were to solder a wire to a battery...Is that legal? I mean, will it like explode, or melt, or go haywire or whatever? Or will there be no problems at all, whatsoever? Thanks!

Posted by Joe426 10 years ago

can i fix the tip of my soldering iron

I have this soldering iron that i totaly messed up. i didnt treet it well when i first got it and now i want to kno if it is even fixable. the tip is not only flat but the only part of it that is able to melt the solder is the size of a pin. im cash strapped and want to kno if there is some way short of buying a new tip to not only make it be able to melt the solder but to some how get it to be somewhat of pointed again. thanx

Posted by lurkingshaddow 10 years ago

MintyBoot Post-Assembly: Installing Batteries causes Battery holder to Melt

Any ideas here? Followed these instructions. I'm fairly novice, so hoping I overlooked something simple?Thanks.Mp

Posted by m_e_perry 11 years ago

Making a Forge

I want to make the inlaid thingies as noted by another instructabler (lol). I need a forge that will melt the metals in this instructable: can I put together on the cheap to produce these results?

Posted by Murdok 11 years ago

Removing duct tape residue

Does anybody know of an effective way to remove the residue left from gaffa tape that wont melt plastics or harm electrics? I recently got an old keyboard that covered with it. (there is a lot of the stuff)

Posted by Tomkatt 11 years ago

acid that liquidphies matel

Frist you need hydrochloric acid ,{you can find this in bathtroom cleaner's}. then you will need ethylene and glycol. mix these things togather and you get acid {and not the type of acidthat makes you high, the one that melt's metal}.

Posted by zeogeo13 11 years ago

Car, Cold, Ice, Snow and Wipers and better defrosting question

So if you live in a state that gets snow and ice one area you can never seem to get all the ice off, or the area that seems to build up ice easily is your wipers. Now my idea is like the rear window, when you turn on the defroster it warms up wires inside of the window that melts and defrostes the snow/ice/frost etc. A. Any ideas how I would make something like that, where I could turn on a switch that would be hooked to the battery with a fuse in the line where I could some how coil the wire around or under the wiper to melt the ice on the blade and in the area where the wipers are "stored" when turned off. B. Any different ideas then the one above?C. Any ways to make a roll of plastic or something with the wires held in place?All thoughts, ideas, diagrams and explanations welcome =)

Posted by oddie1212 10 years ago

Hf or rf welder

I have some flexible clear vinyl that I've been trying to figure out how to infuse together for a project I want to make.  I've been successful with vinyl glue (after much tests with different glues and epoxies). However chemical bonding can become expensive.  Ive tried many experiments with melting the vinyl together with soldering irons. Either the bond is not strong enough or it melts through, or it weakens the material too much.  I'd be really interested to see someone make an rf or hf welder that is capable of welding heavy gauge vinyl.  Cheers!

Posted by senica 4 years ago

type of soldering wire use

Hello, I have a 60/40 rosin core solder wire. Then I use a 220V soldering iron. Now whenever i tried to melt it, it took short while. compare to those wire in which you can melt it by only touching it with the iron. It's because i tried to repair a headphone jack and I still got where to solder it. Top - Green 2nd - Blue 3rd - Copper  4th - Red It was based on its current solded positions between the thin wires and the 3.5mm jack. now I'm asking what kind of wire do I use. I saw other video tutorials on how to repair a headphone and whenever they solder it, it was a spot on. Thank you.

Posted by MikoT7 1 year ago

Anybody got funny Chain Letters?

I was wondering if anyone had any funny chain letters? I made up one a few minutes ago: There was once a girl who went to the grocery store to buy cheese. Then one of the people who worked there said to her: "We have no cheeeeese" The girl was so suprised she fainted and died. Copy and paste this 5 times within the next hour, or the girl will come to your bed with string cheese hanging out of her mouth, with a sword made of cheese. She will be bleeding melted cheese, and will be crying melted cheese tears, saying "CHEESE! GIMME CHEESE!" If you post one, do not start it! P.S. Enjoy some random pictures!

Posted by Flumpkins 9 years ago

Our electronics are poisoning china

Have a look at this. Many of thes US "Electronic Recycling" centers are actually illegaly sending the electronics to china. There they are melted down with no saftey procautions with things like acid. This is a big deal and something needs to be done. Here

Posted by gimmelotsarobots 9 years ago

Brown Sugar

Well I was wondering how Brown sugar affect recipes differently from normal sugar. I am making a recipe from scratch, so this will help me from repeating it over and over. Also since its a candy does it melt like normal.

Posted by acer73 11 years ago

Filling Hollow Plastic

I need help with my cheap sword. It's hollow plastic so it tends to bend and flop. What should I fill it with so it's more heavy and stiff? I want the fill to not shift or melt/disolve the sword please.

Posted by Lotsa Bad Luck 5 years ago

Inexpensive way to grind plastic bottles?

Greetings, I am looking for an inexpensive way to grind individual plastic bottles into particles for easy melting in molds. I tried a blender. It just scrapes it very loudly and burns it. It doesn't break it up. Thanks

Posted by NeuroPulse 9 years ago

How to make the worlds biggest solar oven.

I guess none of the architects working on this have heard of a solar oven. I'm looking forward to seeing how they fix it :-)

Posted by Nostalgic Guy 4 years ago