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Glass Forming Graphite Grades

Optimally match the smart glass the molds are being used for

Our GF and GF-LT graphite materials are produced using a proprietary process that enhances material properties, surpassing that of traditional graphites.The properties of these grades have been developed to optimally match the smart glass the molds are being used for. Our materials improve cost of ownership, increase yield, and reduce operational expenses.

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Choosing Mold Materials for Making Curved Glass Smartphone Screens
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  • Process
GF-LT Graphite
GF-LT Graphite
GF-LT Graphite
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
GF Graphite
GF Graphite
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)
Related Product Categories
Premium Graphite Components

Our graphite is tightly controlled to produce materials that have a uniform microstructure and the right balance of strength, grain size and hardness to offer optimum performance for your intended applications.
GLASSMATE® Components

To view our complete portfolio of premium graphite components we will redirect you to Entegris' POCO Materials web site.

poco.entegris.com.
Graphite Processing Options

Our graphite materials can be purified to less than 5 ppm, densified to reduce open porosity by as much as 80%, or impregnated with resins, oxidation inhibitors or metals. Surface treatments and coatings are available to provide a sealed surface, to improve wear characteristics or to reduce particles.
Industrial Graphite Grades

From aerospace to energy, the breadth and depth of our graphite portfolio meets all your application needs.

For more information, please visit Industrial Graphite Grades on poco.entegris.com. 
Semiconductor Graphite Grades

Through the power of our award-winning solutions and our technology expertise, we provide customers with innovative, science-based solutions to their toughest technology challenges. Our Entegris manufactured graphite grades are segmented by grain size. These include 1, 5, and 10 micron, which are then further segmented by application.
Life Sciences Graphite Grades

Our graphite materials have been a mainstay in the implantable medical device market for over 40 years. The unique tungsten blended material combines the quality of our high-strength premium graphite with the added benefit of being radiopaque. These qualities make our materials the only choice for pyrocarbon-coated substrates used by replacement joint and mechanical heart valve manufacturers around the world.
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