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what is torch enameling

by Jakayla O'Hara Published 2 years ago Updated 2 years ago
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What is torch Fired enameling? Torch firing is a wonderful way to experience enameling in all of it stages. … The torch, creating an active heat, causes the enamel to movewhile the fuel oxidizes the pigments and in turn mixes with the oxides contained in the metal.

Full Answer

What happens when you torch enamel?

The torch, creating an active heat, causes the enamel to move while the fuel oxidizes the pigments and in turn mixes with the oxides contained in the metal. In thin applications, transparents will shimmer and opaques will take on varying degrees of translucency with glaze-like qualities.

How do you heat enamels with a torch?

This flexibility requires active participation to not overbear delicate areas and to adequately heat the harder enamels. The torch, creating an active heat, causes the enamel to move while the fuel oxidizes the pigments and in turn mixes with the oxides contained in the metal.

What is enameling and how does it work?

Enameling is a process by which powdered glass is fused to a metal substrate at high heat. Enamels can be applied to glass, ceramics, and most commonly, metals. The application of enamels can add color to metals such as copper, silver, and gold. The powdered glass can be applied either wet or dry to a surface.

What is the best enamel for torch firing?

Many of the liquid enamels are appropriate for torch firing but respond best to a natural gas and oxygen torch set-up. Their fine grains and thin applications make them susceptible to oxidation and burning away. Any metal that can be enameled in a kiln can also be torch fired. I prefer working with copper or fine silver.

What metal to use for test chips?

How to keep enameled glass from cracking?

Why are mandrels important?

What metals hold up to heat?

Why do you need steel for beads?

What metal melts faster than snow in Louisiana?

Can you use transparent enamel on scrap metal?

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What is torch enamelling?

Enamelling is the technique of coating a metal surface with enamel. The enamel is a layer of melted glass that, once heated, will fuse to the metal surface, leaving you with a professional finish in a colour and effect of your choice.

Can you enamel jewelry with a torch?

Any metal that can be enameled in a kiln can also be torch fired. I prefer working with copper or fine silver. Copper has a lively color personality of its own and a high melting point, which allows flexibility for heat placement. I do not wash the enamels, but I do try to keep the work area clean.

What is enamelling on metal?

Enameling is a process by which powdered glass is fused to a metal substrate at high heat. Enamels can be applied to glass, ceramics, and most commonly, metals. The application of enamels can add color to metals such as copper, silver, and gold. The powdered glass can be applied either wet or dry to a surface.

What is fire enamel?

Difficult, Long, Expensive. Artisan applies grinded glass on silver or gold base, color by color. After applying each layer the piece is heated in kiln at 800 degrees Celsius. Then the piece is cooled and procedure repeats again, from 5 to 10 times, until required enamel hue and color depth are obtained.

How do you enamel metal at home?

Step 1: Cut Your Metal. There's two approaches that I like to use that are relatively quick. ... Step 2: File Your Metal Edges. ... Step 3: Doming and Forming Your Metal. ... Step 4: Punch Holes. ... Step 5: Clean Your Metal. ... Step 6: Apply Klyr-Fire. ... Step 7: Sift the Enamel: White Base. ... Step 8: Firing First Round.More items...

Do you need a kiln to enamel?

A kiln is preferable when enamelling complex or larger designs as these provide more stable hot temperatures needed to ensure the fusing process goes smoothly.

What temperature do you fire enamel?

between 1450 and 1500 degrees F.Enamels for metal are fired either in a pre-heated furnace (kiln) or a hand held torch. If firing in a furnace, the temperature should be between 1450 and 1500 degrees F.

How many layers of enamelling are possible?

The enamel organ has four layers; the inner enamel epithelium, outer enamel epithelium, stratum intermedium, and the stellate reticulum. The dental papilla, the differentiated ectomesenchyme deep to the enamel organ, will produce dentin and the dental pulp.

Is powder coating the same as enamel?

Powder coating produces a smoother finish and better edge coverage. Paint thickness can vary and running and sagging are more noticeable. Powder coating has a more uniform application of paint than baked enamel.

How do you apply enamel to metal?

Enamels are typically applied by dry sifting the particles onto the surface or by wet packing the enamels into channels or depressions in the metal. Once applied, enamels are heated until they soften and flow; the heat source used is a kiln or torch.

What is an enamel coating?

Enamel refers to a glassy, vitreous and usually opaque substance that is used in protective or decorative coating on metal, glass or ceramic ware. Enamel could be used in varnishes, paints and coatings. After drying, it produces a hard and glossy finish—an enamel-like surface that has a bright luster.

What's enamel made of?

Enamel is comprised of the mineral calcium phosphate, arranged in a crystal structure known as hydroxyapatite.

Can you torch enamel on brass?

Metal Compatibility These enamels work with copper, gold, low-carbon steel and fine silver, fired copper clay and fine-silver clay. Some alloys of brass work. We've had good luck with Vintaj brass blanks and our 24g brass blanks, but color results are sometimes unpredictable.

How do you enamel silver?

1) Fire PMC as high as possible to create a dense structure to enamel on. 2) Once fired, quench the pieces by dipping them into water to remove the heat, brush with a steel brush to begin the polishing process then finish by tumbling for two hours - this will harden the silver and prepare the surface for enamelling.

Can brass be enameled?

Solid copper, brass, iron, and silver will hold up to the heat and enamel nicely.

How do you enamel copper?

0:062:31Kristal Romano Demonstrates Enameling Copper - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo this is glass. That's ground down really really fine and it's mixed with distilled water soMoreSo this is glass. That's ground down really really fine and it's mixed with distilled water so there's no impurities. In here. Now that the enamel is dry the next step is to find those holes again.

How many torches do you need for a torch?

Many of my firings require two torches. I use an auto­matic striker to fight the torch with one hand. When two torches are being used, the torch hook and automatic shut-off lever become important. For safe two torch firings, I have bench hooks to hold the torches. Having two large torches going with the ability to turn one of them off quickly is safer. Obviously, limit yourself to one torch until you are experienced before trying to use two at once. Until then, use an assistant to handle the second torch.

How does a torch affect enamel?

The torch, creating an active heat, causes the enamel to move while the fuel oxidizes the pigments and in turn mixes with the oxides contained in the metal. In thin applications, transparents will shimmer and opaques will take on varying degrees of translucency with glaze-like qualities. In thicker applications, they will become stronger and appear like stone inlay. The more direct contact with the flame, the more exaggerated these effects become.

How long does it take for a 24 ga wire to heat?

Heating is also dependent on other variables, including the shape of the piece, the gauge of the metal and the type of trivet or stand it is resting on. A 24 ga pair of earrings, resting on a 16 ga wire screen, will fire easily, using a small to medium soldering flame, in a minute or two. In contrast, an 18 ga bowl resting on a trivet may take more than five minutes with two torches going.

What is torch firing enamel?

Torch firing is a wonderful way to experience enameling in all of it stages . I see it as an extension to kiln fired enamels and not a replacement since the results are very different. It requires working from instinct with a sensitive observation of cause and effect. The torch oxidizes and blends the pigments, creates patterns and causes chemical reactions that do not occur with kiln firing. Firing times are intuitive and the temperature is controlled by the length of the flame. The torch fires with a cascade of heat, allowing for control over heat placement throughout the piece. Solder seams and delicate colors (soft enamels) thus can be avoided while areas needing high heat can be hit directly.

What torches should I use for a beginner?

A good beginning torch set-up is a Smith or Presto-lite acetylene atmosphere regulated torch . Get the B tank not the little mc. The #2 torch will be used the most, but buy as many different tip sizes as you can afford. Oxygen/acetylene is too hot. The little butane hand torches are not hot enough, but if you own them, try them. My top torch recommendation is natural gas and oxygen if you are experienced at using torches. I have two torches with a variety of tips: the National Hand Torch and the Unecon Hand Torch. The Unecon has an automatic shut-off lever. The tips are interchangeable. They can both be used with propane and oxygen. They were bought from Wale Apparatus Company, a glassworking supplier. Smith also makes a nice set-up.

What metals can be torch fired?

Any metal that can be enameled in a kiln can also be torch fired. I prefer working with copper or fine silver. Copper has a lively color personality of its own and a high melting point, which allows flexibility for heat placement. I do not wash the enamels, but I do try to keep the work area clean. The application tools and procedures arc basically the same as kiln firing, I clean the base metal, use enamel adhesive for sifting and wet techniques, allow the piece to dry and then apply heat. All the techniques can be incorporated, realizing that torch firing creates different color qualities. Beautiful abstract surfaces can be achieved. The uneven heat and contaminates in the fuel will not produce the pure color and density found in contemporary cloisonn6 work. Plique-a-jour is not an option as there is not enough metal surface area. With the torch, the enamel and oxides move with the heat, which causes lines to blend and colors to flow.

How does enamel fire?

For color clarity and proper fusing, the enamel initially requires indirect heat from the metal. This means there must always be an available area of bare metal or previously fired enamel to start the torch firing process. If the entire surface of a piece is to be enameled, it must be treated as if it has a front and a back or an inside and an outside , then fired in succession, always leaving a place for the initial torch heat.

How to enamel a trivet?

Place your trivet on the surface of the mesh firing screen and your pre-prepared piece of metal onto the trivet. Now you’re ready to light up your torch and begin the enamelling process. Before you do, make sure the torch is placed beneath the screen, in a comfortable enough position for you to work in.

How to heat enamel?

The four heating stages of torch enamelling 1 When start the first stage of heating your metal, you may find that the other side (the one that does not yet have any enamel on) will become blackened by the heat of your torch. This can be avoided by applying ball clay to the back of your metal – this will protect it during firing. 2 Once you’ve reached the stage in the heating process that is required for your design, you can now move the flame away from the metal. You will then need to let your metal cool before adding any other layers of enamel to your piece. It is recommended that you enamel both sides of your metal work (also referred to as “counter enamel”) as this can help to reduce the chance of any warping or cracking. 3 After each stage of firing the enamel, you may need to file the edges of the metal piece to remove any traces of oxidisation or stray bits of enamel. 4 Add two or three layers of enamel, depending on the effect you would like to achieve. 5 Most importantly, remember to experiment. Learning how to torch fire enamel can take some practice but the best way to teach yourself is to continue to work with different colours, layering techniques and finishes.

What are the stages of torch enamelling?

The four stages of torch enamelling are “sugar”, “orange peel”, “full fuse” and “over fired”. As you learn how to torch fire enamel jewellery, you’ll begin to recognise each stage in the torch enamelling heating process. The stage that is commonly referred to as “sugar” resembles fine sugar. “Orange peel” resembles a bumpy but glossy orange peel effect. The “full fuse” stage is when the enamel appears smooth and shiny. And “over fired” is when small pits start to appear in the surface – the edges of the piece you’re working on may slightly change in colour too. Getting to know each stage of torch enamelling will enable you to recognise when to remove from the heat and how to successfully achieve your desired effect.

How to make enamel jewellery?

Creating torch-fired enamel jewellery. Holding your metal piece in place with tweezers, paint or spray on a thin layer of your holding agent. Before applying the enamel to the metal’s surface, it helps to lay down scrap paper to catch any debris as you apply the enamel powder, as this can then be reused at a later date.

Why do you need to file the edges of enamel?

After each stage of firing the enamel, you may need to file the edges of the metal piece to remove any traces of oxidisation or stray bits of enamel.

How to dry holding agent?

This can be done quickly by very gently heating the underside of the metal with your torch on a very low flame.

How to protect metal from heat?

This can be avoided by applying ball clay to the back of your metal – this will protect it during firing.

What is enameling?

Enameling is a process by which powdered glass is fused to a metal substrate at high heat. Enamels can be applied to glass, ceramics, and most commonly, metals. The application of enamels can add color to metals such as copper, silver, and gold. The powdered glass can be applied either wet or dry to a surface. The enamel melts, flows, and fuses to the surface in a smooth coating when heat is applied. Firing temperatures using a torch or a kiln generally range between 1400 and 1,650 degrees Fahrenheit. The way that you fire your enamels will have a distinct effect on the texture and color of the enamel design, therefore enamelist must take many different variables into consideration before firing their piece. Enamel is composed of inorganic pigments and additives that each have various properties of opacity, translucent, and transparency. That composition will determine how the enamel is fired.

How is enamel applied?

Enamels are applied by sifting dry particles onto the surface of your metal or to previous enameled layers. Enamel powder can be wetted and used to fill depressions (champlevé) or enclosures (cloisonné). This technique is sometimes called wet packing.

What is grisaille enamel?

Often associated with medieval French enameling, grisaille is the application of white enamel to a black enamel background, creating halftones and shading. The word ‘grisaille’ means grey.

What is Champlevé enamel?

Champlevé is a technique where the metal’s surface is embossed by hammering, stamping, or carving to form depressions in which enamel is applied. The original metal remains exposed and is not enameled. After the piece is fired, the enamel builds up in these divots and the result is a mostly smooth surface. The name comes from the French word for “raised field.”

How long does it take to torch fire enamel?

An average firing time for most enameled pieces is two to three minutes. Unlike other kiln firing media such as ceramics or glass where the pieces are put into a kiln cold and taken out cold after firing, an enameled piece is put in the kiln hot and taken out hot. Torch firing enamel allows the student to see the changes that the enamel goes through as it is fired. Only very small pieces can be torch fired.

What was enamel used for in the 1800s?

Over time, the medium became more affordable and easier to use. In the 1700s, enamel was used to decorate objects such as clocks, fans, and binoculars. In the 1800s, industrial enameling was developed to coat steel to keep it from rusting. Today’s enameling is everything from decorative use, fine art, and industrial use.

Why is enamel used in jewelry?

From the beginning of its use, enameling offered a way to feature vibrant color and preciousness in jewelry. Enamel powder comes in different colors or is clear. Its initial color does not ultimately represent the vivid colors resulting from the fusion process.

How to get copper color back?

You can use a bit of steel wool to bring back the copper color in the exposed areas, if you like, and when you get a piece that you’re especially fond of, you can preserve the whole mess-turned-art under a layer of clear enamel (or the safer option for preserving color and patina–resin). On the other hand, if the whole thing just gets uglier and uglier, keep going until the enamel is all removed from the metal, clean it, and start over!

What color is geranium?

From left to right: transparent geranium on opaque clover pink and white; opaque white on transparent glass green and clover pink on transparent red.

Is it dangerous to crack enamel?

The process I’m calling “intentional quench crackling” can be dangerous, so be sure to wear eye protection when you’re doing it. This technique, which just involves water quenching hot enameled pieces to either crackle the enamel or cause parts of it to crack and pop off in the water, grew out of an attempt to recycle the enameled pieces that I didn’t like. I simply reheated them to glowing orange by holding them with pliers in the torch flame and then quickly dunked them in a metal container of water.

Can you overfire enamel?

For overburning or overfiring enamel, I simply torch-fired my samples as usual, but once the enamels reached the glassy state, I kept going a couple of minutes or even more and then allowed the piece to cool. Most often the results were very interesting spotty designs but, unfortunately, the colors are too dark for them to be very distinctive or attractive–in other words, kind of a muddy mess. The egg yellow turned out pretty well, though, and mixing a sprinkle of robin’s egg blue onto an overfired white surface created an interesting speckled pattern as well.

Can you use a swirl stamp on enamel?

I also used a swirl stamp in hot enamel and it worked well, but the amount of time it took to keep the piece hot enough to stamp a pattern over the entire surface made the enamels overfired and blah.

Can you mix opaque and transparent enamel?

I didn’t actually mix the transparent and opaque enamels as much as I sprinkled one onto the contrasting molten surface of another. By contrasting I mean that it works much better if one enamel is dark and one is light. After experimenting awhile, I also recommend only applying one sprinkle of the contrasting enamel, firing it, and being done–don’t do it repeatedly or in many layers (see overburning, above). This technique can create pretty random textural-looking patches of color reminiscent of clouds in the sky or those images we see of what Earth looks like from space.

Can you pickle copper?

After the enamel has cooled, you can give the copper a scrub with steel wool to clean off some of the firescale and bring back some of the bright copper, or you can pickle it. It doesn’t hurt the enamel.

How to keep enamels clean?

Rule 2. Keep your work area neat and clean. Keep your clothing clean. Rule 3. Use your enamels in a well ventilated work area. Wear a protective dust mask if you are working with enamel powders for an extended period of time, especially when sifting enamels.

What does the numbering system mean on enamel?

All 80 mesh enamel products are numbered into a practical coded numbering system which indicates enamel type and color. This coding can be easily seen by examining our color charts in the printed catalog and online. The thousands number indicates enamel type while the hundreds number indicates the color. The final two numbers indicate how light or dark that color is. For example, 1505 is an opaque pastel greenish blue for copper, and 2680 is a transparent dark blue for copper.

Why is counter enamel used?

Counter enamel is applied to reduce stress exerted on the enamel by the metal after the piece is cool or during cooling. Counter enamel literally equalizes or counters the pull of the metal on the enamel. The thickness of the metal and the thickness of the enamel are relative in this matter.

What is Thompson enamel?

Thompson Enamels are lead-free glass products available in various particle sizes and formulated to fit a variety of metal and glass substrates. These products are described in terms of temperature and expansion to help you select a suitable enamel for your particular project.

Why does enamel crack?

When enamel cracks it is because there is too much stress in the glass and the glass has no choice but to relieve that stress by cracking.

What is 6/20 mesh?

6/20 mesh enamels are particles that have an average diameter of about 1/16” to 1/8”. These particles are ideal for bead making. Lump enamels (unground, unscreened enamels sometimes referred to as ‘frit’) are particles that range from 1/16” to 1” diameter chips or lumps.

Where did enameling originate?

We do not know when or where enameling originated. The earliest known enameled articles are six enameled gold rings discovered in a Mycenaean tomb at Kouklia, Cyprus. The rings date from the thirteenth century B.C. The Greeks were enameling gold jewelry as early as the 5th century B.C. Caesar found the Celtic inhabitants of Britain enameling in the 1st century B.C. During the Byzantine era, 4th through 12th centuries, numerous enamel religious works were made. Fifteenth century artisans in Limoges, France perfected the use of enamels in a painting technique. The 17th, 18th, and 19th centuries and the early decades of the 20th, saw the production of a great volume of luxury and decorative enamels, made in many different centers. Since the last third of the 19th century both Japan and China have exported an abundance of enamel as cloisonné – the name of the technique. Starting early in the 19th century it was realized enamel could be used for utilitarian purposes. First on pots and pans for cooking, then stoves, refrigerators, kitchen sinks, bath tubs, home laundry appliances, architectural panels, etc

What metal to use for test chips?

Use the kind of metal you’ll most often be enameling (copper, silver, brass, iron, etc.) for your test chips. If you put enough layers on an enameled piece, the kind and color of metal underneath ultimately won’t make much difference (silver vs. copper, etc.) unless you’re using transparent enamels.

How to keep enameled glass from cracking?

Keep a metal bowl of water nearby. Use metal, or even glass, but not plastic. Don’t ask me how I know that. (But I bet you can guess!) Note that you do not quench enameled pieces after enameling—definitely don’t, because that rapid cooling will shock them and make the just-turned-glass crack and probably fall off.

Why are mandrels important?

Mandrels are important. You’ll want them in a variety of sizes, because undoubtedly your beads will have a variety of holes. I ordered some small mandrels from Barbara Lewis’s Painting with Fire Studio, and I bought some larger-diameter rods at a hardware store and cut them to manageable lengths.

What metals hold up to heat?

Solid copper, brass, iron, and silver will hold up to the heat and enamel nicely. Wear safety glasses. For real, wear them. I am bad and usually never wear them, but in this case, I wear them. When you’re working with an unknown metal, it can spark and pop and shoot out little flaming bits in every direction.

Why do you need steel for beads?

You’ll want steel, because it doesn’t conduct heat and won’t get hot in your hands. My steel rods are both threaded (like a screw) and unthreaded; the threads are helpful in keeping things from sliding off, but of course they can also hold enamel in them and make it harder to remove the beads.

What metal melts faster than snow in Louisiana?

Most of those purchased in bead and craft stores are something-plated pewter or aluminum , both of which will melt faster than snow in Louisiana when you put it in the flame. Then you’ll end up with a splat, like the one on the right, which used to be a charm.

Can you use transparent enamel on scrap metal?

If you’re using transparent enamels…. It’s also a good idea to make a test chip on a scrap of whatever metal you’re enameling on when you begin a project. You don’t always know how the metal will change in the heat during the enameling process (turn dark with firescale, form colorful flame patinas, etc.).

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