SIGRATHERM® Graphitized Microballoons

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Description

SGL Carbon’s graphitized microballoons (with 15% sinkers) are designed as a unique and special filler material e.g. for epoxy, polyurethane or polyester resins to reduce their density and increase their strength and dimensional stability. They function as non-halogenated flame-resistant filler and support to provide greater thermal insulation. Phenolic resin microspheres are carbonized and graphitized at 2000°C (3632°F) to produce graphitized microballoons of high purity.

This material data has been provided by SGL Carbon.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Value	Comment
Particle size D50	51.0 μm Show Supplier Material materials with Particle size D50 of 51.0 μm
Specific surface area	1.25 m²/g Show Supplier Material materials with Specific surface area of 1.25 m²/g	BET; DIN ISO 9277
Tap density	0.18 g/cm³ Show Supplier Material materials with Tap density of 0.18 g/cm³	ASTM D3800
True particle density	0.45 g/cm³ Show Supplier Material materials with True particle density of 0.45 g/cm³	DIN 51913
Water content	0.1 % Show Supplier Material materials with Water content of 0.1 %	ASTM C562

Dimension

Property	Temperature	Value
Dimensions	Particle size D50 = 51 μm (ISO 13320) °C	Particle size < 50 mesh/300 µm: 98% (ASTM E11)

Mechanical

Property	Value	Comment
Compressive strength	2.0 - 4.2 MPa Show Supplier Material materials with Compressive strength of 2.0 - 4.2 MPa	ASTM D3102-78, minimum value for 90% and maximum value for 80% survival

Thermal

Property	Value	Comment
Ash content	0.2 % Show Supplier Material materials with Ash content of 0.2 %	ASTM C561

Chemical properties

Property	Value
Carbon	99.8 % Show Supplier Material materials with Carbon of 99.8 %
Sodium	0.0025 % Show Supplier Material materials with Sodium of 0.0025 %

SIGRATHERM® Graphitized Microballoons

Description

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Applications

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Properties