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Fine Silver Clay Products

Fine silver clay is available in 3 versions, each with a different minimum firing temperature. All of the fine silver products are listed below.

The Basic Forms: Lump, Slip & Paper
Basic Metal Clay Tools
Lump Form

The basic metal clay material is called "lump" form. It comes in a sealed foil packet and is ready to use. Lump form is used to roll slabs, snakes and to mold or sculpt objects. Lump form can be thinned with water and used as a paste.

Slip (or Paste) Form
Slip (or Paste) Form

Slip, also called Paste form, comes in a jar or loaded in a syringe. The paste form is fairly thin and is used like glue to paste wet or dry PMC objects in place, as a media for slip casting, for painting onto an object for a hollow form, and decoration. The syringe form is much stiffer than slip or paste. Metal clay syringe is used to extrude a thinner form of clay for decorating, setting stones, filling cracks, etc.

Paper Form
Paper Form

Paper form is a very thin sheet of clay that can be used to make bezels for objects to be set before or after firing, used for ring shanks, and folded like origami. Shapes can be cut out with punches and applied as decoration. It can also be laminated with water to make it thicker.

Fine Silver Clay Product Line

Lump Form - ACS Standard Slow Dry
ACS Standard Slow Dry - Lump Form

Art Clay Silver Slow Dry dries slower than other forms of Art Clay Silver. This special formula allows for braiding, weaving, and generally gives the artist up to 5 times more working time. It is a wonder for those who live in excessively dry areas. We recommend the unfired clay be no more than 3mm thick. You can make large items, but they need to be layered, such as flower petals, so the pieces will dry properly. Slow Dry elements can be combined with other Art Clay types and fired together. During firing this clay shrinks between 8-10%.

UsesBraiding, fine detail and molds.
WorkabilityACS Standard Slow Dry dries 5 times slower than ACS standard, which gives a longer working time. Be sure to keep any unused portions tightly sealed from air because all metal clay dries very quickly when exposed to air.
Embedded
Objects
Any object that can withstand the firing temperatures and times Art Clay Silver can be embedded and fired in place. Some natural gemstones, lab gems and cubic zir conia, and porcelain can be embedded and co-fired.
Firing
Options
Kiln Temperature/Hold Time:
1650F/2 hours (optimum)
1450F/30 min
Torch/Hold Time: Not recommended
Lump Form - Art Clay Silver
Art Clay Silver - Lump Form

Art Clay Silver can be fired as low as 1200F which makes it perfect for combining with glass, porcelain and ceramic materials, and is also suitable for firing with sterling silver findings or wire. Shrinkage is 8-9%. Because of the lower firing temperature, this clay be fired with a wider variety of gemstones, and glass colors stay true. Gemstones in Metal Clay firing instructions can be found here.

UsesThis clay is perfect to be fired by itself or combined with glass or sterling silver wire and settings.
WorkabilityMetal Clay can dry out very quickly, reducing its workability. If the clay becomes stuff during use, add a few drops of distilled water and knead well. Be sure to keep any unused portions of clay tightly sealed from air.
Embedded
Objects
Any object that can withstand the firing temperature of 1200F can be embedded and fired in place. This includes glass, some natural gemstones, lab gems, cubic zirconia and porcelain.
Firing
Options
Kiln Temperature/Hold Time:
1472F/5 min
1380F/10 min
1290F/15 min
1200F/30+ min
Torch/Hold Time: Red Glow/5 min
Lump Form - PMC Flex
PMC Flex - Lump Form

PMC Flex is the newest innovation in fine silver clay. It has been specifically formulated to provide the jewelry artist with an extended working time. Unlike other fine silver clays, PMC Flex does not completely harden at room temperature. This benefit makes it possible to create components for later projects or even resume working on pieces several days after starting them. Carving, sanding and refining PMC Flex can easily be done after drying the clay at 300F for 20 minutes. PMC Flex shrinks about 10-12% during firing. It can be fired in open air (no carbon required) and can be torch fired as well.

Uses This form provides extended working time. Unlike the other versions of PMC, Flex does not completely harden at room temperature. PMC Flex can be used to make rods and sheets for later use and to return to projects several days after. When you are ready to sand or carve PMC Flex, dry the object by heating to 300F for about 20 minutes. Firing and finishing is the same as for all other fine silver clays.
Workability PMC Flex does not completely harden at room temperature. Unused clay should be kept tightly sealed when not in use.
Embedded
Objects
Any object that can withstand the firing temperatures and times of PMC Flex can be embedded and fired in place. Some natural gemstones, lab gems and Cubic Zirconia's can be used, as well as porcelain.
Firing
Options
Kiln Temperature/Hold Time:
1650F / 2 hours
1290F / 10 min
1200F / 20 min
1110F / 45 min
Torch/Hold Time: Red Glow/5 min
Lump Form - PMC+
PMC+ - Lump Form

This product is 85% fine silver and 15% binder by weight. This variety shrinks 12-15% during firing. Note the firing times can be shortened dramatically from 2 hours to a minimum of 10 minutes.

Uses This version can be used to craft any type of item, but we caution it's use for rings since it is not as strong as alloy type clays such as PMC Pro or PMC Sterling. If soldered, it must be burnished well and uses surprisingly more solder than sterling silver.
Workability PMC+ dries quickly, so care must be taken to quickly remove and save scraps. Unused clay should be kept tightly sealed when not in use.
Embedded
Objects
Any object that can withstand the firing temperatures and times of PMC+ can be embedded and fired in place. Some natural gemstones, lab gems and cubic zirconia's can be used, as well as porcelain.
Firing
Options
Kiln Temperature/Hold Time:
1650F / 2 hours (optimum)
1650F / 10 min
1560F /20 min
1470F / 30 min
Torch/Hold Time: Red Glow/5 min
Lump Form - PMC 3
PMC 3 - Lump Form

This product is 90% fine silver and 10% binder by weight. This variety shrinks 10-12% during firing. The metal particles in this version are smaller than those in PMC+, which allows higher metal content and therefore less shrinkage. The firing duration can be as little as 2 minutes (torch fire).

Uses This version of metal clay can be used to craft any type of item, although it being .999 fine silver, we do not recommend it for rings, findings or other items that require high strength, such as alloyed clays like PMC Sterling or PMC PRO. When fired at the highest temperature (1650F), it produces the strongest final product. It must be burnished well before soldering and uses surprisingly more solder than sheet or wire forms of sterling silver.
Workability PMC3 dries quickly, so care must be taken to quickly remove and save scraps. Unused clay should be kept tightly sealed so that no air can contact it.
Embedded
Objects
Any object that can withstand the firing temperatures and times of PMC3 can be embedded and fired in place. Some natural gemstones, lab gems and cubic zirconia's can be used, as well as dichroic glass and porcelain. Findings and some types of glass can also be embedded when fired at the lowest temperature.
Firing
Options
Kiln Temperature/Hold Time:
1650F / 2 hours (optimum)
1650F / 10 min
1560F /20 min
1470F / 30 min
Torch/Hold Time: Red Glow/5 min

Lump Form - Metal Magic
Metal Magic - Lump Form

This product is 75% fine silver and 25% binder by weight, and after firing, becomes .999 fine silver. This variety shrinks 25% during firing, which enhances its abilities to pick up the smallest of details in your creations. This clay has a great (long) working time and does not dry out too quickly. Great for pendants, beads, earrings etc., we do not recommend this metal clay for rings due to its high shrinkage rate.

Uses This form of silver metal clay can be used to craft any type of item, although we recommend against using it for ring making, due to its 25% high rate of shrinkage.
Workability Metal Magic Silver Clay dries slowly, offering the artist a longer work time before it begins to dry. Clay may seem hard in the packaging before use. Lubricate hands with a non-stick product like Claymate or Slik and work the ball of clay for a few minutes in a rolling motion. It will turn soft and pliable. Do not add water unless you are making slip. To keep the clay moist and usable, return the unused clay to its original packaging or store in a Clay Hydrator. Dry clay overnight before firing, or dry on a hot plate or dehydrator at a maximum temperature of 175F for 30 minutes. Drying temperatures above 175F will begin to burn off the binding agents, with possible distortion to your piece. After firing, conventional jewelry tools can be used to finish your piece by burnishing, tumbling or applying a patina and polish.
Embedded
Objects
Any object, i.e. Cubic Zirconia, lab created gemstones, findings, etc., can be fired in place as long as they can withstand the kiln firing temperature of 1600F for 30 to 90 minutes. See our Gemstones Firing Guide for more information on firing gemstones in metal clay.
Firing
Options
Kiln Temperature/Hold Time:
1600F / 30-90 min
We recommend 90 minutes as the longest hold time for a complete sintering, and the strongest end result
Torch/Hold Time: Not recommended

Slip (or Paste Form) Product Properties

Art Clay Silver - Syringe Type
Art Clay Silver - Syringe Type

This product is Art Clay Silver in a syringe. By using clay in syringe form, you can draw designs directly onto your designs and create lines and patterns which were formerly difficult to produce with conventional types of metal clay.

UsesGreat for filling cracks, or creating details and decorations on unfired clay. Also good for creating a bezel to set fire safe czs and lab gemstones.
WorkabilityAll metal clay can and does dry out quickly. This product is water-based and can dry up. When not in use, keep the syringe tightly capped. When working with syringe type clays, keep the tip(s) submerged in water to prevent the drying out of the clay. This clay has a 8-9% shrinkage rate.
Embedded
Objects
The special formula of this product allows for the combination of glass, porcelain and ceramic materials, and is also suitable for firing with sterling silver.
Firing
Options
Fire at the same times and temperatures as lump form Art Clay Silver Clay.
Art Clay Silver - Paste Type
Art Clay Silver - Paste Type

Art Clay Silver Paste is used to coat or paint organic materials such as leaves, twigs, or paper forms. During the firing process, the organic material burns away leaving fine detail captured in silver. It can also be used to bond pieces, and mend cracks created while working with Art Clay Silver Paste.

UsesThis type of clay is used for coating organic materials, mending cracks or bonding pieces of dried Art Clay Silver components and attaching silver findings into a wet or dry Art Clay piece. Art Clay Silver has an 8-9% shrinkage rate after firing.
WorkabilitySome silver settling may occur at the bottom of the jar. Stir the paste with a brush or metal spatula before use. This product is water-based and can dry. Always keep the container capped tightly. If it dries out, add a small amount of distilled water to rehydrate.
Embedded
Objects
Follow the guidelines for the lump form Art Clay Silver Clay.
Firing
Options
Fire at the same recommended temperatures as lump form Art Clay Silver Clay.
Art Clay Silver - Overlay Paste
Art Clay Silver - Overlay Paste

Low fire, water-based silver clay in paste form. Specially formulated for use on glass, glazed porcelain, and ceramics, so you can express 3 dimensional drawings. During firing, the pure silver powder solidifies and turns into 99.9% silver.

UsesThis paste type is perfect for use with glass, glazed porcelain, sterling silver and settings. Overlay Silver Paste is in a viscous, liquid form and water soluble so that you can express 3 dimensional drawings on a surface of porcelain, ceramic or glass. After firing, this product turns into 99% silver form.
WorkabilitySome silver settling may occur at the bottom of the jar. Stir the paste with a brush or metal spatula before use. This product is water based and can dry. Always keep the container tightly capped. If it dries, add a small amount of distilled water to rehydrate.
Embedded
Objects
Any object(s) that can withstand the firing temperature of 1200F can be embedded and fired in place. This includes glass, some natural gemstones, lab gems, cubic zirconia and porcelain. Refer to our Gemstone firing guide.
Firing
Options
Kiln Temperature/Hold Time:
1650F/2 hours
1200F/30 min
1290F/15 min
1380F/10 min
Torch/Hold Time: Red Glow/5 min
*After reaching selected temperature, turn off kiln and cool down to 210F before removing piece from kiln.
*This product must be fired with a programmable electric kiln, which is equipped with a temperature control.

Paper Form Product Properties

Art Clay Silver - Paper Form
Art Clay Silver - Paper Form

Art Clay Silver Paper Type is a precious metal material that is composed of pure silver after firing. You can easily fold, bend, cut with scissors or paper punches just like you would do with regular paper. You can easily apply techniques from Origami, paper crafting, or leather crafting. Sheets are 3" x 3".

UsesThis is a unique, paper-thin sheet of silver clay that needs no drying time. Created for origami, you can also fold, pleat, or punch out shapes for use as appliqu.
WorkabilityThis product has different characteristics from other Art Clay Silver products. Do not apply moisture onto the surface. It will remain soft during your work. Can not be used with 650 Low Fire Paste.
Embedded
Objects
Fine silver wire, bezel wire, and findings.
Firing
Options
Place in a cold kiln and ramp at 2000F per hour to 1472F. Hold for 30 minutes.