Huber Micral® 532 Aluminum Hydroxide

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Huber Micral® 532 Aluminum Hydroxide
Categories:	Ceramic; Oxide; Aluminum Oxide; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	Micral® 532, developed especially for SMC and BMC, has a unique particle size distribution that provides the best possible combination of viscosity, flame, electrical and molding properties that can be derived from an ATH filler. A closely controlled top size and high fines content allow Micral® 532 to be substituted in systems where properties were previously achieved by blending medium and ultrafine grades of ATH. A complete range of surface modifications is available to aid processing and enhance physical properties. These include silanes, stearates and wetting agents. Technical service is available. Information provided by J.M. Huber Corporation
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Physical Properties	Original Value	Comments

Specific Gravity	2.42 g/cc
Bulk Density	0.550 g/cc	loose
	1.00 g/cc	packed
Brightness	95 %	TAPPI
Oil Absorption	>= 31 %	31 ml/100gm
Moisture Absorption	0.600 % @Temperature 105 °C	Free
Particle Size	5.0 µm	Median Particle Diameter
Particle Mesh Size	325 Mesh	99.99% through
Specific Surface Area	7.0 m²/g	BET

Component Elements Properties	Original Value	Comments
Fe2O3	0.0070 %
Loss on Ignition(%)	34.6 % @Temperature 1000 °C
Na2O	0.050 %	soluble
	0.20 %	total
SiO2	0.0050 %

Descriptive Properties
Al(OH)₃ (%)	99.6
Functionality	Fire Retardancy
Market/Application: Thermoplastics	Yes
Market/Application: Thermosets	Rubber & Plastics

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EHUBER746 / 300852

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