One-Shot Liners

Capital Refractories one-shot crucible system provides the quality conscious investment caster with considerable improvements in terms of product quality.

Since the liner is only used once, there is no risk of cross-contamination of alloys, and inclusions are drastically reduced.


The system comprises a multi-use outer crucible (back-up crucible), and a fused silica or alumina, single-use, crucible liner.

One-shot liner crucibles are available in a wide range of sizes. Capital are happy to discuss individual customers requirements.

Quality Wt. % Physical
Al2O3 SiO2 Ca/MgO Fe2O3 Na/K2O Bulk Density
/ g cm-3
Apparent Porosity / %
Alumina AL68S 68 31 0.1 0.1 0.1 2.59 18.0
Silica FS70S 31.2 67.2 0.2 0.3 0.9 2.15 17.0

Capital mass-produces thousands of one-shot liners per year at their state-of-the-art facility in the Czech Republic.