Undula | Glass sculpture
by Anna Alsina Bardagí
About the artwork
Title: Undula
Material: Eco optical glass
Edition: Unique artwork
Process: Cast glass, polished and sandblasted
Dimensions: 19.5 H x 32 W x 12 cm (7.6 H x 12.5 W x 4.7 inches)
Weight: 12.9 kg (28.4 lbs)
Year created: 2024
FAQs about Undula glass sculpture
What techniques were used to create Undula?
Undula was created using kiln-casting and cold-working techniques to achieve its fluid form. Contrasting textures—polished surfaces against undulating edges—emerged from controlled modeling and sandblasting, while intricate surface treatment before firing gave rise to the internal wave-like pattern.
What was the process behind creating this glass sculpture?
The creation of Undula began with a meticulous hand-sculpted prototype crafted from fine art plasticine. Once the prototype was complete, I made a durable mold using hard plaster and silica to capture the details of the design. Next, I calculated the precise amount of glass required to fill the mold and achieve the desired effect.
The piece underwent over ten days of firing in the kiln, allowing the glass to gradually take shape. During this process, heat and gravity influenced the formation of the internal wave-like texture. After reaching its final form, the glass sculpture went through an extended annealing phase to relieve internal stress and ensure structural integrity.
What kind of glass was used in this sculpture?
This artwork was created using Ohara’s eco-optical glass S-BSL7, a high-quality glass that is free from lead and arsenic. Its exceptional purity creates the illusion of emptiness around the suspended horizontal pattern, making it appear as if it floats within solid glass.
How long did it take to bring Undula to life?
The creation of Undula spanned over three months, from the initial concept and design phase to calculating the necessary glass, kiln firing, and polishing for optimal optical clarity.