Frit is a term used to describe crushed or ground glass particles, which are available in various sizes and colors. In lampwork beadmaking, frit is a versatile and essential material used by glass artists to add texture, color, and dimension to their creations. The application of frit glass pieces involves melting them onto the surface of hot glass, allowing them to fuse and become an integral part of the bead design.

frit lampwork beads

It's essential to remember that frit comes in different Coefficient of Expansion (COE) values. These include COE 104, COE 90, COE 96, and COE 33, each with its unique properties and applications, providing lampworkers with a wide array of creative options for bead designs. Matching the COE of the frit with the chosen glass type ensures smooth melting and seamless fusion.

As a lampworking artist, being aware of the COE of both the frit and glass used is vital to achieve successful and visually appealing results in your beadmaking projects. Mixing different COE blends is not recommended, as it can lead to cracking and incompatibility issues. For instance, COE 33 cannot be mixed with 104 COE glass. However, sparingly using 96 COE with 104 glass, around 5%, can be considered with caution.

frit lampwork beads

Here, we'll discuss the different sizes of frit glass pieces, commonly denoted as #0, #1, and #2:

#0 Frit:

#0 frit is the finest size available, resembling sand-like particles. When used in lampwork beads, #0 frit adds subtle coloration and a delicate granulated texture to the bead's surface. Glass artists often use this fine frit as a base layer, which helps create a smooth foundation for additional layers of glass or larger frit sizes. Due to its small size, #0 frit allows for intricate detailing and precise application in the bead design.

lampwork frit size #0
#1 Frit:

The #1 frit is a mid-sized option, larger than #0 but smaller than #2. Its granules are coarser, providing a more pronounced texture and visual impact. Glass artists use #1 frit to create distinctive patterns, speckling effects, or gradations of color on the surface of the lampwork beads. This frit size is versatile and often serves as an intermediate layer between the finest and largest frit sizes, enhancing the overall complexity of the bead design. This frit size is the most common size you will find and you can see there are still smaller pieces in this blend.

lampwork frit size #1

#2 Frit:

#2 frit is the largest size available, featuring relatively bigger granules. With its more substantial presence, #2 frit provides bold and eye-catching results when used in lampwork beads. This frit size is particularly suitable for creating dramatic designs, abstract patterns, or textured backgrounds that stand out prominently. When heated, the larger frit particles retain their distinct shapes, offering a unique and dynamic appearance to the finished bead. Some frit blends will contain multiple sizes that create size footprints on the lampwork beads.

lampwork frit size #2

In the process of incorporating frit glass pieces into lampwork beads, glass artists can either apply the frit directly onto the hot glass surface or preheat the frit in a kiln to prevent thermal shock before adding it to the molten glass. The frit adheres to the hot glass and melts, becoming a seamless part of the bead's design as the lampwork bead is shaped and formed.

lampwork beads

By utilizing different sizes of frit glass pieces (#0, #1, and #2), lampwork artists can exercise their creativity to produce a vast array of captivating designs, textures, and color combinations in their handmade beads, making each piece a truly unique and expressive work of art. These can bead used in smaller beads or in larger beads. 

July 22, 2023 — Stephanie White

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