Best Fusible Glass Supplies AI pick
Chosen by an AI model from its trained knowledge, with its reasoning.
AI pick (brand): Bullseye Glass
Bullseye's COE 90 sheet, frit and stringer are tested for compatibility with each other, which removes the main cause of cracked fused pieces.
Not for: Anyone who already owns COE 96 or System 96 glass, because the two glasses cannot be mixed.
AI picks by need
For COE 96 / System 96 glass
Oceanside Glass (brand)
Oceanside makes the System 96 line, the main tested-compatible alternative to COE 90.
Not for: Studios already stocked with Bullseye or other COE 90 glass.
For dichroic glass for pendants
CBS Dichroic Glass (line)
Coatings By Sandberg is the benchmark dichroic coater and labels the base glass COE it coats on.
Not for: Beginners not yet confident with full-fuse schedules, because dichroic is easy to ruin and costly to waste.
For kiln shelf protection
Bullseye Glass ThinFire Shelf Paper (line)
ThinFire gives a smooth, clean release surface without re-coating the shelf with kiln wash every firing.
Not for: Those who want a textured back or fire many cheap pieces on a reusable kiln-washed shelf.
What the AI looks for in Fusible Glass Supplies
- COE compatibility
- Use only glass labelled with the same tested COE (90 with 90, 96 with 96), and never mix families or unlabelled glass. Mismatched expansion causes stress that cracks pieces, sometimes days after firing.
- Tested compatible, not just labelled
- Prefer manufacturers that test for compatibility. COE number alone does not guarantee it. Two glasses with the same nominal COE from different makers can still be incompatible.
- Kiln type
- Small microwave kilns suit tiny pendants only. Programmable electric kilns are needed for controlled annealing. Annealing is what keeps fused glass from failing later, and microwave kilns cannot control it.
- Shelf release
- Always fire on kiln wash or fiber/shelf paper, never on a bare shelf. Glass fuses permanently to an unprotected shelf.
Brands that matter
- Bullseye Glass: COE 90 system with sheet, frit, stringer and kiln paper.
- Oceanside Glass: System 96 sheet glass and accessories.
- CBS (Coatings By Sandberg): Dichroic coatings on both COE 90 and 96 bases.
What to avoid
- Mixed glass scrap or 'art glass' lots with no stated COE.
- Stained-glass sheet sold for leaded work, which is not tested for fusing.
- Microwave kilns for anything larger than small cabochons.
Questions
Can I fuse window glass or bottles with my fusing glass?
Not together. Float and bottle glass have their own expansion. Fire them only with themselves.