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Glassmate Grades

POCO's graphites are high strength, isotropic materials with a uniform microstructure. POCO produces a full range of graphite grades designed for specific applications along the glass production line.

Glassmate (GM)

This material has high strength and durability for applications with high wear. An exceptional insert material for precision thread pick up and long production runs.


In very high wear situations, LT, with a hardness rating higher than GM material, will resist wear longer.


This high strength material has an oxidation inhibitor that raises the oxidation threshold. Service temperature can be raised to 600°C; graphites are subject to oxidation above 450°C


An economical material for short production runs. An ideal insert material for thick bead transfer applications.