Huber Micral® 632 Aluminum Hydroxide

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Huber Micral® 632 Aluminum Hydroxide
Categories:	Ceramic; Oxide; Aluminum Oxide; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	Huber Engineered Materials’ Micral® 632 is a mechanically produced ATH product designed for plastic and rubber applications requiring a fine particle size. The high surface area of Micral 632 provides a low cost approach to flame retardance and smoke suppression in applications such as urethane foams, vinyl, SBR belting, EPDM, EPR, adhesives, coatings, ABS, polyolefins and XPLE. 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	0.450 g/cc	loose
	0.900 g/cc	packed
Brightness	95 %	TAPPI
Oil Absorption	>= 32 %	32 ml/100gm
Moisture Absorption	0.600 % @Temperature 105 °C	Free
Particle Size	3.5 µm	Median Particle Diameter
Particle Mesh Size	325 Mesh	99.99% through
Specific Surface Area	9.0 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	Smoke Suppression
Market/Application: Building & Construction	Paints & Coatings
Market/Application: Thermoplastics	Yes
Market/Application: Thermosets	Rubber & Plastics

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EHUBER747 / 300853

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