Prices and Purchase Options
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Prices subject to change without notice.
Custom batch expansions can be tailored to fit your needs.
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For over 30 years, Spruce Pine Batch has set the standard providing premium glass batch for artists worldwide.
Developed by glass artists for glass artists, our batch is formulated for superior workability and excellent clarity. Our rigorous quality control allows us to deliver a product that is consistent and predictable. Glass artists agree, we deliver a durable glass that fits the wide range of colors available. Our experienced staff works directly with artists to respond to a wide range of issues quickly. We provide technical support and assist to troubleshoot problematic melts. We work diligently to source only the finest materials, increasing the lifespan of your furnace. Our batch is considered to be the best available for everyone from individuals to mass production studios.
Suggested Melting Cycles / Fining / Annealing
View our Technical Info page for all recommendations and suggestions when using Spruce Pine Glass Batch.
The Labino Formula : Manufactured in House
The Spruce Pine Batch “house” formula was designed by Dominic Labino specifically for use by studio glass artists. The Labino Formula is available in a variety of expansions and with or without decolorizer. The most popular version of the Labino Formula has a theoretical expansion of 87.3 x 10-7, with a measured expansion of 96-97 when melted. The annealing point is 482°C (900°F) and the softening point is 662°C (1224°F).
Benefits of Spruce Pine Batch
By choosing Spruce Pine Batch, you the glass artists provide yourself with the superior control of your process. Spruce Pine Batch is more environmentally friendly than pre-melted cullet. Our batch yields predictable and consistent melts, resulting in a glass with unmatched quality and workability. Spruce Pine Batch’s thirty-year track record of providing proven, durable glass demonstrates that we deliver simply the best available.
Agglomerated Glass Batch
Spruce Pine Batch is agglomerated for easier, safer storage and use. All materials are selected and tested for use by studio glass artists, not large factories. Spruce Pine Batch is prepared by weighing and mixing the materials which compose the formula of the glass, then processing to form larger granules from finer materials. The process is commonly called pelletizing although pellets are not necessarily formed. The primary purpose of agglomeration is the prevention of segregation of materials during shipping and storage. Furthermore, it has the additional effect of increasing safety by reducing the dustiness of the materials and when compared with loose batch, research has shown that agglomeration results in fuel savings and reduces furnace wear.
