Greasy Glass Transparent Shifty Boro Rod (CFL Reactive) is a transparent, machine-pulled borosilicate glass color rod for lampworking, flameworking, studio prep, and production glasswork.

Built for working glass artists, this color rod gives your piece stronger identity fast: cleaner contrast, more visual punch, and dependable shop utility without overcomplicating the pull. The key character here is transparent, machine-pulled, giving the listing a more specific working personality. Listed grade/status: 1st Quality.

Working Notes

• Product type: borosilicate glass color rod.
• Best for: color accents, layered work, sections, marbles, pendants, prep work, and production lampworking.
• Color/effect profile: transparent, machine-pulled.
• Grade/status: 1st Quality.
• Shop consistency: Machine-pulled and laser-measured where noted for repeatable bench use.
• Artist note: Photos and finished color can vary by backing color, flame chemistry, thickness, lighting, and kiln cycle.

Original shop notes: Transparent Shifty made by Greasy Glass, machine pulled rod by Borro Glass Studio. Shifty changes from yellow to pink when in the presence of CFL lighting. Boro Glass Rod