Glass Forming Graphite Grades


Featured White Paper

Choosing Mold Materials for Making Curved Glass Smartphone Screens

Featured White Paper

Choosing Mold Materials for Making Curved Glass Smartphone Screens

Featured White Paper

Choosing Mold Materials for Making Curved Glass Smartphone Screens
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  • Process
GF-LT graphite offers the same attributes as our GF graphite plus improved wear and erosion resistance. The higher hardness of this material provides superior polishing capabilities to a very high-gloss surface finish.
Shore Hardness
  • 96
Apparent Density, g/cm3 (lb/in3)
  • 1.77 (0.064)
Coefficient of Thermal Expansion, µm/m °C (µin/in °F)
  • 8.5 (4.7)
Compressive Strength, MPa (psi)
  • 155 (22
  • 500)
GF graphite is the base grade of glass forming materials with high strength and durability for glass forming applications. GF materials provide higher product yield through improved glass surface finishes and a match to high CTE glass products.
Shore Hardness
  • 74
Apparent Density, g/cm3 (lb/in3)
  • 1.74 (0.063)
Coefficient of Thermal Expansion, µm/m °C (µin/in °F)
  • 8.1 (4.5)
Compressive Strength, MPa (psi)
  • 130 (18,800)
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