COE90 Opalescent 3mm

COE90 Opalescent 3mm is Bullseye's full-thickness opalescent sheet glass for kiln-forming. Opalescent means light scatters within the sheet rather than passing straight through, giving solid, painterly color that reads strongly whether the finished piece is backlit, slumped into a vessel, or displayed against a wall. This category collects Bullseye's 3mm opalescent palette in both smooth double-rolled sheets and a range of pressed surface textures.

What's in this category at AGS

Every sheet here is Bullseye Glass Company, tested compatible at COE90 and rolled to a nominal 3mm gauge, the standard working thickness for fused panels, plates, and jewelry blanks. Most of the selection is double-rolled, the smooth two-sided format most fusers reach for first. Alongside the smooth sheets you'll find textured variants including Granite, Granite Ripple, Soft Ripple, Reeded, Herringbone Ripple, Prismatic, and Accordion, which add surface relief without changing the underlying color or COE.

Color range

The opalescent palette runs from neutrals like Dense White, Lacy White, Cream, French Vanilla, Deco Gray, Driftwood Gray, Elephant Gray, and Black through warm tones like Almond, Butterscotch, Burnt Orange, Cinnabar, Canary Yellow, and Deep Red, and into greens and blues such as Artichoke, Avocado, Celadon, Jade, Dark Forest Green, Golden Green, Gray Green, Glacier Blue, Dusty Blue, Light Cyan, Cobalt, Deep Cobalt, Egyptian Blue, and Indigo. Purples and unique hues are represented too, including Lavender, Dusty Lilac, and Gold Purple.

Choosing 3mm and staying COE compatible

Reach for 3mm when you want the standard Bullseye sheet thickness for base layers, tack-fuse work, slumping blanks, or stacks where the total glass volume is planned for the desired fired thickness. Many fusers work in Bullseye 90 COE exclusively, because Bullseye is the maker of 90 COE glass and tests every sheet for compatibility at its own factory. That means colors and textures from this category are made to expand and contract at the same rate as other Bullseye 90 COE glass. For other gauges, transparents, or specialty styles, see the broader COE90 Sheet Glass selection.

Working with textured sheets

Textured 3mm sheets are typically fired texture-side up when you want to preserve the relief in the finished piece, or texture-side down on a kiln-washed shelf to capture the pattern as a softer imprint while flattening the top face. The opalescent surface also accepts Bullseye powders, frits, stringers, and glass paints well, making these sheets dependable base layers for pattern bars, decals, and surface design work.

Typical uses

Bullseye 3mm opalescent sheet is the workhorse stock for fused plates and bowls (after slumping), tiles, coasters, jewelry components, sun catchers, panel inserts, and mosaic-style fused work. The solid color readback also makes opalescent a strong choice for backing transparent overlays or for projects meant to be viewed in reflected light rather than against a window.