Product Details

Product Information

Bullseye frit is made from crushed, screened and magnetically cleaned Bullseye Compatible sheet glass. Available in a huge variety of colours, frit gives the opportunity to add a unique element to your glass work.

Frits are extremely versatile and can be used in kilnforming, including 'glass sketch' and painting with light techniques, as well as in torch working and blowing, to create colours and patterns on surfaces.

Frits are available in a Powder, Fine, Medium, Coarse and Extra Coarse form.

Working Notes

This glass style requires a longer initial hold time during firing to reach the target colour - please see the working notes below. 

Contains:

Lead

 May React With:

Selenium, Sulphur

Cold Characteristics:

This style may not reveal (or strike to) its target colour until fired.

Varies slightly from lighter to darker shade; sometimes with lighter dappling in single-rolled sheets.

Working notes: 

Colour usually deepens on firing. Possible dark interface reaction with selenium and/or sulphur glasses (0137, 1122, 1125,0124, 0125, 1137, 1437). Less viscous (softer) than most other glasses. Some gold-bearing striking glasses, like this one, should be fired with a 2 hour hold at 663°C during the initial stages of the firing cycle. If fired without this hold, they may not strike at all, or they may strike but appear spotty and have a blue-brown cast, as opposed to the desired target colour.  This full-fuse schedule should effectively strike these glasses:

Segment 1:

Rate (°C/hr) – *

Temp (°C) – 663

Hold – 2:00

 Segment 2:

 Rate (°C/hr) –333

Temp (°C) – 810

Hold – 0:10

 Segment 3:

 Rate (°C/hr) – 999

Temp (°C) – 482

Hold – **

* The initial rate of heat is not a critical factor in successfully striking gold-bearing glasses. Choose an initial rate of heat appropriate to the scale and design of the project that you are firing.

** Remainder of cycle depends on the thickness of the piece. Consult the Bullseye Annealing Chart. For colour-sensitive projects, we recommend testing the cycle you plan to use by fusing a small sample of a similar setup in the same kiln as the project to best predict final colour results.

Fine and Medium frits usually appear lighter than their fired colour, even when the glass is not a striker. Coarse frits less so.

All our glass is COE90, Bullseye Glass compatible and suitable for applications such as glass fusing, glass casting and glass slumping (unless otherwise stated in the description).

Customer Reviews

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Lesley Butler

I really enjoyed this colour, l put it in a dragonfly mould just at tips of wings l liked the ethereal look to the dragonfly's with a little using colours that should not work, but it looked a billion

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