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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 contaminants read more

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 Compatible read more

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 glasses read more

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 strikers read more

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 expansion") read more

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 extra read more

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 to cracked read more

How do I know which Bullseye clear glass to use?

Tekta is Bullseye's signature style of clear glass. Bullseye manufactures two styles of its Tekta glass Tekta Clear and Tekta Crystal Clear. Tekta Crystal Clear is recommended for crystal clarity especially in thicker works. Compare read more

Why should I choose Bullseye glass over other glasses?

When you buy Bullseye glass you're investing in top-quality materials and technical resources Our standards for testing and quality are the highest in the industry and our products are unsurpassed for consistency and reliability read more

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 glass. Related read more

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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…

Glossary

Anneal' To cool previously heated glass through a specific temperature range in order to relieve excessive stress once the glass reaches room temperature. Annealer' More accurately called an annealing kiln or annealing oven. A…

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…

Quick Tip: Smooth It Out

Create a smooth' uniform surface on the shelf side of your fired work—not a brush stroke in sight! First' prepare a kilnshelf with Bullseye Shelf Primer. Follow the instructions in our free video Preparing Kiln…

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: Reaction Action

When certain Bullseye glasses are fired in contact with one another' their chemistries interact at the interface to create many effects and colors too. Here are close-up examples of some of our favorite reactions' including…

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…

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Considerations for Multiple Firings

There are many reasons you might need to fire a project multiple times to achieve a desired result. Some of the most common include:• Fusing and slumping in two separate firings• Firing components that will later be incorpora…

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…

Powder-Colored Sheet Glass

You can create almost any color you want, when you want it, with clear sheet glass and colored glass powder.In this lesson, we'll show you how the process works and create several different sheets of colored glass. Then we'll use those…

Color Theory Basics

Color theory is the art and science of color interactions and effects.In this lesson, you'll learn some of the basics of color theory, including the vocabulary used to describe color, color schemes, the ways that colors interact, and s…

Kilncarved Sconce Project

Imagine having the capability to realize your vision of the ideal luminaire. In this lesson, we'll demonstrate how to design and fabricate your own lighting sconce.We’ll use a process called kilncarving to create a diffuser of varyin…

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…

Alchemy Clear Drop-Out Bowls

Bullseye's Alchemy Clear sheet glass styles change the appearance of silver foil that is fired in direct contact with the glass. One style changes the silver to gold, the other changes it to bronze.These effects are the result of the c…

Opaline Ring Bowl

Bullseye's Opaline sheet glass scatters light, creating a range of effects on base colors. In this project-based lesson, we'll make a bowl using a palette of Opaline, Clear, and Pine Green.In the process, you'll learn how to intercut s…

Drawing with Glass Powder

Drawing with glass powder is a great way to explore and develop ideas. The technique frees you from the preciousness of the material, allowing you to relax and take pleasure in drawing.In this lesson, you'll see how three people respon…

Frit Tinting

Frit tinting is a technique for creating specific color blends by adding colored glass powder to Clear frit. It broadens the palette available to you, making possible colors that are often difficult to achieve in kilncasting, such as r…

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…

Why should I choose Bullseye glass over other glasses?

When you buy Bullseye glass, you're investing in top-quality materials and technical resources: Our standards for testing and quality are the highest in the industry and our products are unsurpassed for consistency and…

How do I know which Bullseye clear glass to use?

Tekta is Bullseye's signature style of clear glass. Bullseye manufactures two styles of its Tekta glass: Tekta Clear and Tekta Crystal Clear. Tekta Crystal Clear is recommended for crystal clarity, especially in thicker works.…

Can I get samples of your glass?

Yes. Our popular sample sets for sheet glass, billets, and rods are great resources for any studio. Note that these samples are for color reference only. They are not intended for reheating and may not be fusible.

Is there bubble-free glass?

Bubbles are found in all handcrafted glasses. They contribute to the art and beauty of finished glasswork. You can learn to minimize bubble formation or to create bubble patterns and effects by reading TechNotes 5: Volume &…

What are Special Production glasses?

Occasionally we produce limited runs of top grade glass styles that are not included in our regular product line. We refer to these as “Special Production” sheets. Special Production sheets may be one-of-a-kind or available in…

What are Curious glasses?

The grading system for our handmade glass demands that each sheet match a target color and have a uniform appearance to receive first-quality grade. Glass that is not quite the target color or that has some other…

Is all Bullseye glass recommended for fusing?

No, but all of our glass goes through a rigorous quality assessment and assigned a grade. Our top-quality sheet glass comes in two grades: Fusible and Standard (non-fusible). Fusible glass is coded as “F” and Standard or…

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