Huber HN 434 Aluminum Hydroxide

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Huber HN 434 Aluminum Hydroxide
Categories:	Ceramic; Oxide; Aluminum Oxide; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	HN-434 is a halogen–free, fine particle size ATH product that provides low cost flame retardant and smoke suppression in a variety of applications. The particle size distribution is specifically designed for low viscosity, high filler loading levels, and excellent processing characteristics, up to 200°C. Applications: A closely controlled top size with a large superfine fraction yields rapid dispersion in resin. Excellent mold flow and wetout characteristics result in superior surface profile with minimal porosity, even pigmentation and excellent filler and reinforcement distribution throughout the molded part. HN-434 is recommended for spray-up or hand-lay up FRP applications, filament winding, panel production, resin injection, foam materials, cast polymer and epoxy parts, coatings, adhesives, latex, vinyl and urethane compounds. Physical Form: White powder Morphology: Hexagonal Platelets Generic Type: Aluminum trihydrate CAS No.: 21645-51-2 Information provided by J.M. Huber Corporation
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Physical Properties	Metric	English	Comments

Specific Gravity	2.42 g/cc	2.42 g/cc
Bulk Density	1.10 g/cc	0.0397 lb/in³	packed
Brightness	94 %	94 %	Ry
Oil Absorption	>= 22 %	>= 22 %	22 ml/100gm
Particle Size	<= 1.0 µm	<= 1.0 µm	Screen Analysis: 8.6 percent
	9.5 µm	9.5 µm	Median Particle Diameter
	<= 10 µm	<= 10 µm	Screen Analysis: 51.3 percent
	<= 45 µm	<= 45 µm	Screen Analysis: 99 percent
Specific Surface Area	3.0 m²/g	3.0 m²/g	BET

Mechanical Properties	Metric	English	Comments
Hardness, Mohs	3.0	3.0

Electrical Properties	Metric	English	Comments
Electrical Resistivity	>= 7700 ohm-cm	>= 7700 ohm-cm

Component Elements Properties	Metric	English	Comments
Fe2O3	<= 0.020 %	<= 0.020 %
Free Water	0.35 % @Temperature 105 °C	0.35 % @Temperature 221 °F	TGA
Loss on Ignition(%)	34.5 % @Temperature 550 °C	34.5 % @Temperature 1020 °F
Na2O	0.030 %	0.030 %	soluble
	0.20 %	0.20 %	total
SiO2	<= 0.040 %	<= 0.040 %

Descriptive Properties
Al(OH)₃ (%)	99.6
CIELAB, L*	98
Color	White powder
Functionality	Smoke Suppression
Market/Application: Building & Construction	Paints & Coatings
Market/Application: Thermosets	SMC/BMC

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EHUBER703 / 300809

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