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What is firepolishing?

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. Related Questions What temperature should I use for firepolishingHow can I cast to get some read more

Can I make my own stringers?

Yes you can hand-pull your own stringers using a Vitrigraph kiln. If you have the opportunity to use a Vitrigraph kiln we highly recommend you take it. Not only is it fun but you will be able to make unusually shaped stringers that can read more

What's the difference between kilncasting and lost wax kilncasting?

Lost wax kilncasting is just one of many kilncasting methods. To learn more about this method see TipSheet 8 Basic Lost Wax Kilncasting  or our Video lesson Lost Wax Kilncasting. FAQs Return to Index of FAQs  read more

What types of kilncasting can I do?

Kilncasting projects generally fall into one of two broad categories those which are made in open-faced molds and those that are made in closed or semi-closed molds. In open-faced molds one side of the mold is left completely open. 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

What kiln should I use for casting?

Almost any kiln that will fit your mold setup will work.  The most important thing to consider when selecting a kiln for casting work is whether there will be plenty of room around the mold to allow for uniform heating and cooling. In read more

What is investment?

Investment is a mixture of materials used to make a mold. In general investment mixes for kilncasting glass are composed of three basic ingredients a binder a refractory and modifiers. Some artists use readymade investment mixes like read more

What form of glass do I use for kilncasting?

Different casting methods and desired outcomes will necessitate different forms of glass.  For example if working in the pate de verre method you will want to use frits and powders.  Whereas when working in the box casting method read more

What firing schedule do I use for casting?

As with nearly all kilnforming projects the answer will vary depending on a number of factors such as the mold you're using the process you're using as well as the glass you're using. For example a pâte de verre firing schedule would read more

What equipment do I need for kilncasting?

At the very least you'll need a kiln kiln furniture and a suitable work surface. The rest depends entirely on the scale and type of casting you plan to do.  Two of the most popular kilncasting processes are box casting and lost wax read more

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Quick Tip: Fritfetti

Say yes to sprinkles! Steps (4 firings) Make frit balls with Medium Frit. See Quick Tip' Frit Balls. Cut 7” (approx. 18cm) circles. You’ll need 3 circles of Clear and one of each opalescent style to make the…

Pre-Firing Your New Kiln

Overview Before using a new kiln for glass projects' you will need to pre-fire it. This burns out binders' moisture' and other residue left over from the manufacturing process. Read and download the PDF file' Pre-Firing…

Quick Tip: Little Wisp Bowls

Create your own streaky color palette. Layer Clear and White Streaky sheet glass over transparent tint glass styles. Slump in the Cone Bowl mold to upturn the edges and achieve luscious color at the rim. We’re making bowls…

Quick Tip: Opaline Overlays

Style codes for glasses above' White (000113-0030)' Driftwood Gray (000132-0030)' Elephant Gray (000206-0030)' Deco Gray (000136-0030)' Slate Gray (000236-0030)' Black (000100-0030)   Opaline sheet glass. Amazing…

Using Fusible Decal Paper to Transfer Laser Printed Images

Overview With this paper you can make a decal out of any image that you can print on a laser printer' including letters' numbers' line art' graphics' or even photographs. A black and white photograph that has good contrast as…

What size French Cleat do I need?

Overview Once you know the total weight of your piece' use this chart to select the right cleat(s). For more tips' download our What size French Cleat do I need' PDF.  More Information What size French Cleat do I…

Quick Tip: Raise the Bar on Your Soap Dish

Add an accent color—and functionality—to your new soap dish with a little help from Bullseye fusible rods! We paired Robin’s Egg Blue Opalescent with Driftwood Gray rod' but you could use any combination.   Step…

Using Color Line Screen Paste

Overview Color line screen paste offers the ability to add high-pigmentation design elements and imagery onto sheet glass with no powdered enamels to mix. Pastes come ready to print' and are available in a wide range of…

Mold Tips: Heart Casting Mold (8976)

More Information Mold Tips' Heart Casting Mold (8976) PDF Helpful Resources Clean Shield Gel product useFrit tinting articleFrit tinting videoMold Tips' Suggested Slumping SchedulesTips for Using Bullseye Slumping…

Quick Tip: Working with Petrified Wood

Petrified Wood is Bullseye’s magical unicorn streaky. Its unique combination of glasses results in dramatic internal reactions at full-fuse temperatures. Here are two ideas for making this glass sing.   Copper…

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Kilncarved Billet

Creating a low-relief glass sculpture often requires a complex plaster-silica mold-making process. Kilncarving is a simple casting process that uses ceramic fiber paper and the right amount of heat to achieve similar results.In our Kil…

Pâte de Verre Bowl

Pâte de verre is a casting method that involves hand-packing layers of glass in a refractory mold. In French, the term literally means “paste of glass.” You can use this method to make a variety of forms. These include vessels, sc…

Making Multiple Wax Models

If you plan to kilncast multiple copies of an object, you may need to make multiple wax models of that object.In this lesson, you'll learn how to create a wax model. We'll start with this plastic mold used in our lesson, “Day of …

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…

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…

Open-Faced Kilncasting

For the artist who wants to make sculptural glass, open-faced kilncasting offers a relatively simple and direct technique. It also serves as an introduction to principles used in more complex kilncasting methods. The process involve…

Box Casting

Box casting is a great way to create a reverse-relief, cast-glass object with exceptional clarity. The results are typically clean and predictable, making the process ideal for producing multiple editions of a piece. In this lesson,…

Working Deep

Working Deep is a method of floating or embedding imagery or color within a thick block of glass. The method involves stacking and fusing multiple layers, using the transparency of the material to create a three-dimensional design. Whe…

Kilnformed Container

This lesson provides basic instructions for making a thick-walled kilnformed glass container. You will explore the materials, tools and techniques involved, and learn how to fire sheet glass that’s arranged around an investment core,…

New to using Bullseye Glass?

 "Your choice of glass is probably the most important decision you will make as a kilnformer." -Artist Steve Immerman on why he exclusively uses Bullseye. Bullseye glass is developed by artists, for artists. We've got your…

Is it safe to fire Bullseye Glass in a kiln?

Yes. At cold temperatures and typical firing temperatures, the colorants are encapsulated in the glass and the glass does not emit odors or toxics into the air. However, ventilation is recommended to dissipate odors from shelf…

What is The Rule of Halves?

This rule is important to know for successful glass cutting. A score is more likely to run properly when there are equal amounts of glass on either side of it. This is particularly important for cutting strips of…

Where can I get answers to frequently asked customer service and sales questions?

For frequently asked customer service and/or sales questions, please visit the Customer Service/Sales FAQ section in our online store.  If you don't see the answer to your question there, please give our sales department a call…

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…

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. Producing…

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 should I know about studio safety?

Here are are some general guidelines to avoid injury while working in the kiln-glass studio. For more information, see Safety in the Kiln-Glass Studio. When working in a kiln-glass studio, cuts will happen, but they are…

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