The final step, polishing Vinculum.

Optical glass workshop

Step inside the optical glass workshop of Barcelona-based artist Anna Alsina Bardagí and discover how light, heat, and gravity shape her glass sculptures.

This page offers a glimpse into the spaces, tools, and processes involved in creating her work, from the earliest prototypes and mold making to kiln casting, grinding, and optical polishing.

Workspace and hot shop where optical glass takes shape

A few pictures of the glass casting process in the studio, from prototype making to melting and cooling the glass in the kiln for over two weeks.

Instagram Anna Alsina
workshop process
Finished mold created using a plaster-silica investment mix.
Glass kiln
Glass casting process
Glass studio Anna Alsina Bardagi
kiln oven for glass casting
Glass after casting
Kiln casting process

Cold working process to achieve optical transparency

A glimpse into the grinding and polishing stages in the studio to achieve an optical finish.

Vinculum after two weeks in the kiln
Polishing Vinculum in the studio
polishing glass siren
Polishing glass
Glass sculpture being polished with cerium oxide for a high-gloss optical finish.
Remove scratches from glass
Photo artist studio
Anna Alsina glass artist