Graphite - Sales and Service Program

2. Expandable Graphite

Expandable graphite is manufactured through intercalation of natural graphite using intercalation agents and engineered for regulated expansion when subjected to thermal conditions. As a graphite intercalation compound, it serves as an environmentally friendly flame retardant additive for fire protection and fire safety applications.

2.1 Standard Expandable Graphite Grades

• Expansion volume spanning from 20 extending to  more than 650 cm³/g with controlled expansion ratio and free expansion characteristics
• Particle dimensions ranging from +32 mesh through to -325 mesh
• Carbon concentration typically ranging from ≥90–99%

2.2 Controlled Expansion Volumes

• Adjustable expansion volumes according to customer requirements
• Expansion behaviour can be tailored across the full temperature range from activation temperature up to approx. 1000 °C (within physical limits)
• Defined expansion profiles, including gradual or rapid expansion characteristics
• Optimization of expansion volume in relation to particle size, intercalation chemistry, and application conditions

2.3 Controlled Activation Temperature Grades

• Low starting temperature range (~150 - 180°C) 
• Medium activation temperature range (~180 - 220°C)
• High activation temperature range (>220°C - 280°C) 

2.4 Pre-Expanded Graphite

• Thermally expanded graphite (worm-like structural configuration)
• Reduced bulk density with enhanced sealing capabilities

More information about Expandable Graphite

Products manufactured from expanded graphite for sealing and thermal applications with excellent fire protection and fire safety characteristics.

3.1 Graphite Foil

• Flexible graphite foil available in various purity, thickness and size
• Low through to high density grades

3.2 Oxidation-Resistant Graphite Foil

• Enhanced resistance to oxidation
• Diminished weight loss at elevated temperature conditions
• Reduced burn dripping and improved fire safety performance

3.3 Low-Density Graphite Sheets

• Optimized for thermal conductivity performance
• Lightweight structural configuration

3.4 Reinforced Graphite Sheets

• Metal-reinforced varieties (tanged, flat, or wire insert configurations)
• Enhanced mechanical strength characteristics
• Appropriate for high-pressure operational environments
• Forms thermally stable residue under extreme conditions

3.5 Sealing Materials

• Gaskets, seals, and packing materials
• Braided graphite yarns and cords

3.6 Recycled Graphite Powders

• Manufactured from clean graphite foil residues
• Cost-efficient conductive powders
• Various particle size specifications

Synthetic graphite materials manufactured under high-temperature processing conditions.

4.1 Graphite Electrodes

• Multiple grade classifications and density specifications
• Diverse diameter and length configurations 

4.2 Graphite Blocks and Profiles

• Extensive range of density specifications and grain configurations
• Machinable materials appropriate for technical implementations

4.3 Graphite Tiles and Linings

• Chemical-resistant material compositions
• Appropriate for corrosive operational environments

4.4 Machined Graphite Parts

• Custom-configured components

4.5 Recycled Electrode Powders

• Manufactured from clean electrode residues
• Utilized in friction materials and compound formulations

4.6 Micronised Artificial Graphite

• Fine powder specifications with regulated particle dimension down to approx. 2 µm

Complementary carbon-based material compositions.

5.1 Amorphous Graphite

• Fine-grained, diminished crystallinity material

5.2 Carbon Black

• Fine particles featuring elevated surface area

5.3 Petroleum Coke and Carbon Additives

• Diverse fixed carbon compositions and particle dimensions

5.4 Graphite Fibres and Felts

• High-temperature resistant carbon material compositions
• Diverse density specifications and structural configurations.