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Bullseye French Vanilla Opalescent Frit

SKU 000137-0003-coarse-5oz
Original price $9.57 - Original price $29.48
Original price
$9.57 - $29.48
Current price $9.57



May React With

Copper, Lead, Silver

Cold Characteristics

Consistent color.

Working Notes

This sulfur-bearing glass may react with gold-bearing lead (001311, 001215, 000301, 000305) and copper (001116, 001408, 001417, 000144, 000145, 000146) glasses to create dark interface (lead sulfide, copper sulfide). 

Very viscous; will flow later and less than other glasses. Generally more sensitive to heat-history and more likely to show variation in color after fusing than many opals. When fired on edge, a clear distinction between outside and interior surfaces is commonly seen (a variation used by designers). This glass may become increasingly white with repeated firings. Consider using glass from the same batch for a given project.

Dense White (000313) Reaction Note

The fired surface of French Vanilla does not react as readily to lead-bearing Dense White (000313), compared to firing the same combination in a single firing (using glass that has not previously been fired). However, this combination does react when re-fired to a full fuse.

The fired and sandblasted surface of French Vanilla will react more readily with Dense White in a secondary full fuse. This provides a design opportunity with the contrast between the sandblasted areas (which do react) and any masked-off areas (which do not).

This contrast is sensitive to further heatwork as reactions will begin to develop as low as 1150°F. Our tests show that continued heatwork in this firing will develop a stronger reaction in the masked off (fired surface) areas. If designing with this characteristic, further testing is recommended.


Made from crushed, screened, and magnetically cleaned Bullseye Compatible sheet glass.

Frits are versatile and can be used in:
• Pâte de verre and kilncasting
• Kilnforming, including “glass sketch” and “painting with light” techniques
• Torchworking and blowing, to create colors and patterns on surfaces.


⚠️ Important Regarding Glass Sizing!

Bullseye is widely recognized for its sophisticated palette of harmonious colors. Most styles are available in two thicknesses: double-rolled 3 mm sheets and Thin 2 mm sheets. Due to the handcrafted nature of the product, dimensions are approximate.


*Free Shipping on $200 net orders and does not include kilns, equipment or half sheets of glass.  Applies to the contiguous United States.  Wholesalers are not eligible for free shipping.

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