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Do you have projects that teach about kilncasting?

You can get some ideas and basic information by reading TipSheet 5 Bullseye Box Casting and TipSheet 8 Basic Lost Wax Kilncasting. Related Questions Do you have projects that teach about kilnformingHow can I learn to cut glassHow do I read more

What molds are used for kilncasting?

Molds for kilncasting fall into two broad categories open-faced or closed/semi-closed. In open-faced molds one side of the mold is completely open; the cold glass is placed directly into the mold through that opening. Using open-faced read more

How do I coldwork my kilncast piece?

What kind of piece is it and what are you trying to accomplish in coldworking it If the piece includes a reservoir that needs to be removed this can be taken off with a wet tile saw with a diamond blade or it can be ground off using rotary read more

How do I prevent suckers?

In kilncasting "suckers" are unsightly depressions or wrinkles that can pop up during the cooling process. Suckers get their name because they appear to have been sucked in from the form of the mold. Suckers are the result of differences read more

How do I prevent sharp edges in castings?

Often sharp edges are a result of the glass scraping down the side of the mold during firing. To minimize sharp spots set up your glass and mold up so that as the glass softens it flows out to meet the walls of the mold rather than scraping read more

How can I cast to get some gloss on the finished surface?

There are a few ways to ensure your finished piece has a glossy surface. First of all the interior texture of the mold will affect the final texture and amount of gloss on your piece. Using an investment mix or mold material with a fine read more

Can I firepolish my casting?

Firepolishing is the process of heating a glass object in a kiln to a temperature high enough to impart some level of gloss to the surface. If your piece is flat rather than upright you may be able to firepolish it. Since firepolishing read more

My casting cracked. How can I fix it?

That depends entirely on the piece and the crack. Some cracks can be fixed relatively easily while for others it might not be worth it. If it's a large crack or one that's is in the interior of the piece you'll probably need to recast. read more

My casting cracked. Can I put it back in the mold and refire?

Theoretically in certain cases it is possible to reinvest the cracked piece and recast it.  But if the mold was damaged while removing the cracked piece you will need to make a new mold. And while a damaged piece can be repaired the read more

Can I fuse or cast Bullseye with any COE 90 glass?

The answer to this question is not simple. Our short response is this Matching COEs does not ensure compatibility between glasses in spite of what you've read or heard from other practitioners or glass manufacturers. Bullseye's read more

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Suggested Slumping Schedules

Over the years' Bullseye's Research & Education department has gathered a vast amount of experience slumping glass in a wide variety of molds. We've collected this information into a handy new reference guide and' in keeping…

Clean Shield Gel

  When properly applied' Clean Shield Gel (8224) brings out luster and gives dry' matte surfaces the sealed appearance of a low-temperature firepolish. (Unfired' unsealed sandblasted surfaces have a "dry" appearance that can…

Color Line Paints & Pens Product Information

Overview Color Line Paints & Pens are ready to use enamels for glass or ceramics in a fantastic range of intense colours. Available in squeeze bottles for use as lining pens or in larger units for painting' airbrushing'…

Prefiring Your New Kiln

  Before using a new kiln for glass projects' you'll need to pre-fire it. This burns out binders' moisture' and other residue left over from the manufacturing process. New shelves can be slow to take on primer so we recommend…

Gold-Bearing Pink Tints

Samples of Ruby Red Tint (001824-0030-F) from various production dates. To consistently reach target color when firing our gold-bearing striking glasses' Bullseye advises a pre-rapid heat soak of 2 hours at 1225°F (663°C) on…

Fine Lines

Candle-bent Fine Line stringers bring a lean line quality to this Mid-Century inspired design. Bend the Stringer Holding the stringer with thumbs and forefingers' place the spot you want to bend in the tip of a candle flame…

Fresh Color

New color palettes bring freshness to artwork. You can discover professionally curated' current color combinations to make your own in magazines and websites about design' interiors' and even fashion. An article about bedroom…

Opaline Ring

Put a Ring On It! Explore the possibilities of a palette of green rings capped with Opaline! As an overlay' Opaline scatters light for a dramatic impact on base colors. Note the blue hue it adds to the dark-valued green here and…

GlassTips: Opalescents

What to expect from selected Bullseye sheet glass. This handy reference guide explains what you can expect from your Bullseye sheet glass colors before and after heatwork in the kiln. Click on the small style swatches to the left…

Mold Tips: Deep Form

Overview Making this deep bowl form is easy as 1-2-3.  Each consecutive firing shapes the form' ultimately resulting in a deep' tall' steep-sided vessel. Download our Mold Tips' Deep Form PDF for some tips to maximize…

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Lost Wax Kilncasting

Lost wax kilncasting is a versatile method for making glass pieces in almost any form imaginable. The process involves creating a refractory mold around a wax model. The wax is then removed—or "lost"—creating a cavity. Glass is cas…

BECon 2013: Judy Tuwaletstiwa and Erik Whittemore

Tuwaletstiwa and Whittemore presented this lecture on Saturday June 22, 2013 in Portland as part of BECon 2013: CHROMA-CULTURE.It's Not Me. It's Not You. It's a Process.For more than 20 years, Judy Tuwaletstiwa painted exclusively with…

BECon 2013: Stacy Lynn Smith

Smith presented this lecture on Friday June 21, 2013 in Portland as part of BECon 2013: CHROMA-CULTURE.The Color that Grabbed Me on the StreetDuring her undergraduate training as a painter in Chicago, Smith discovered the world of prin…

BECon 2013: James B. Thompson

Thompson presented this lecture on Friday June 21, 2013 in Portland as part of BECon 2013: CHROMA-CULTURE.Experiencing the Beauty, Mystery, and Terror of Color: My Foray into GlassJames B. Thompson addresses the history of color, how h…

Tabletops

In our lesson Working Deep, we demonstrated how to design thick sections of glass with imagery and color embedded within the layers.In this lesson, we'll use a similar method to make a thick slab of glass for a small tabletop working w…

BECon 2013: Sandra Gross

Gross presented this lecture on Saturday, June 22, 2013 in Portland as part of BECon 2013: CHROMA-CULTURE. Transformations: Color, Kiln-Glass & Children's Education What can we learn as artists and educators in observing children…

BECon 2013: Richard Speer

Speer presented this lecture on Thursday June 20, 2013 in Portland as part of BECon 2013: CHROMA-CULTURE. Angel White and Devil Red: Color's Symbolism in History, Pop Culture, and Contemporary Glass "Color," wrote the late painte…

BECon 2013: Bullseye Color Stories

This panel discussion took place on Friday June 22, 2013 in Portland as part of BECon 2013: CHROMA-CULTURE. Bullseye Color Stories Panel: Dan Schwoerer, Sam Andreakos, and Ted Sawyer Moderator: Mary Kay Nitchie Where does Bull…

Day of the Dead Skulls

Pâte de Verre is a casting method that involves hand-packing layers of frit and powder in a refractory mold. The term literally means “paste of glass” in French. Works made with this technique take many forms. These include thin-w…

Screen Printing: Screen Setup & Care

Screen printing is a time-honored method of image production dating back hundreds of years. Both flexible and cost-effective, it has been successfully adapted to a variety of media for use in commercial, fine art, and pop-culture setti…

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Is Bullseye glass microwave/dishwasher safe?

To keep it looking great for years to come, we recommend treating your fused glass artwork the way you would fine china or crystal: Keep it out of the microwave and dishwasher. Microwaves can heat unevenly and this, in turn, can lead…

How big are the individual granules of frit? If applying Bullseye frit with a sifter, what size mesh screen will I need?

Bullseye frit granules come in five sizes: extra large (available in clear only), coarse, medium, fine, and powder. We recommend applying frit with a sifter, as there are a number of interesting effects that can be achieved. Bullseye…

What is Bullseye's glass coding system?

Every piece of Bullseye glass you buy is named with a precise code. The code provides information including color, texture, treatment, thickness and form or shape. Download the Bullseye Glass Coding System PDF FAQs Return to…

Is Bullseye glass COE 90?

Unfortunately, the answer to this question is not simple.  The intent of most glass fusers who ask this question is to find out if Bullseye glass is compatible with glass made by another manufacturer. But COE ("coeffecient of…

What are "striking" glass colors?

Some Bullseye glasses appear pale or colorless in the cold sheet form, but “strike” or mature to a much different color when fired. Striking colors can vary, depending on temperature, atmosphere, and heat history. For projects…

Is Bullseye glass compatible in all conditions?

When kilnforming, there are a multitude of variables to keep in mind. If you plan to subject Bullseye glass to unusual working conditions, we always recommend conducting your own tests. Under normal working conditions, Bullseye…

What can I expect from Bullseye rods?

Bullseye rods are an accessory glass that can be added to kilnforming projects to create a variety of unique design elements. In the production of Bullseye rods, five characteristics are evaluated: Compatibility: Bullseye…

Is Bullseye glass food safe?

Listed below are the Bullseye glasses that contain more than 1.0% lead or more than 0.5% cadmium. If you use any of these styles for food-bearing objects, we recommend capping them with Bullseye clear glass. In our testing, we have…

How and why should I clean glass before firing it?

Glass should always be cleaned before it is fired in a kiln. Cleaning glass removes problem-causing contaminants like glass-cutting fluid, oils, minerals, salts, dusts, fibers, sticker residues, pen marks, and fingerprints. These…

What is coldworking?

Coldworking, as it sounds, is changing the shape or surface texture of glass using tools and processes that do not rely on heat. Coldworking methods include grinding, carving, engraving, polishing, sandblasting, and other…

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