Expandable graphite

expandable graphiteAlso known as “intumescent flake graphite,” expandable graphite is a synthesized intercalation compound of graphite that expands or exfoliates when heated. This material is manufactured by treating flake graphite with various intercalation reagents that migrate between the graphene layers in a graphite crystal and remain as stable species.

(Expandable Graphite Safety Data Sheet) | (TDS226 BWGRAF)

Percent CarbonMin. 99 %
Particle Size RangeSize Varies

ITEM No.: BE525 50Mesh

ITEMUnitStandard
Carbon content%≥99.0
Ash%≤1.0
Water%≤1.0
volatile matter%≤18
Expansion volumecc/g240 ≤ Expansion volume < 260
fineness%≥80
sulfur contentppm≤2500
PH5-8.5
ITEM No.: BE815 80Mesh

ITEMUnitStandard
Carbon content%≥99.0
Ash%≤1.0
Water%≤1.0
volatile matter%≤18
Expansion volumecc/g140 ≤ Expansion volume < 160
fineness%≥80
sulfur contentppm≤2000
PH5-8.5

ITEM No.: BE821 80Mesh

ITEMUnitStandard
Carbon content%≥99.0
Ash%≤1.0
Water%≤1.0
volatile matter%≤18
Expansion volumecc/g200 ≤ Expansion volume < 220
fineness%≥80
sulfur contentppm≤2500
PH5-8.5
Appearance: Black powder

Packing: 25kg per bag in Ton bag with pallet


Specifications

Appearance

Silvery sheen and plate like particle morphology before heating. After heating – black worms.

Applications

  • Melt Cover
  • Oil Recovery Processes
  • Carbon Brushes & Parts
  • Seals & Gaskets
  • Intumescent Fire Retardants

This pressure develops enough force to push apart graphite basal planes in the “c” axis direction. The result is an increase in the volume of the graphite of up to 300 times, a lowering of bulk density, and approximately a 10-fold increase in surface area.

BariteWorld’s expandable graphite is used as a fire suppressant intumescent additive, as a raw material to manufacture graphite gasket products, as an electrically conductive filler, as a foundry additive, and in a wide variety of other industrial applications.

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