Huber MoldX® S45 Aluminum Hydroxide

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Huber MoldX® S45 Aluminum Hydroxide
Categories:	Ceramic; Oxide; Aluminum Oxide; Other Engineering Material; Additive/Filler for Polymer
Material Notes:	MoldX® S45 optimized alumina trihydrate is a non-halogen fire retardant product designed for fiberglass reinforced polyester applications such as sheet molding compounds (SMC), bulk molding compounds (BMC) and laminating. MoldX S45 is engineered to allow higher loadings versus standard ATH products and offers excellent processing. The increased loading capability of MoldX S45, from 180 phr to as high as 240 phr in an SMC formulation, eliminates the need for halogen fire retardant additives. SMC compositions containing MoldX S45 as the sole flame retardant can be formulated to meet UL94 VO and UL94 5VA at thicknesses of less than 0.100 inch. Information provided by J.M. Huber Corporation
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Physical Properties	Original Value	Comments

Specific Gravity	2.42 g/cc
Bulk Density	0.650 g/cc	loose
	0.800 g/cc	packed
Brightness	89 %	TAPPI
Moisture Absorption	0.300 % @Temperature 105 °C	Free
Particle Size	9.0 µm	Median Particle Diameter
Particle Mesh Size	325 Mesh	0.1% on
	325 Mesh	99.9% through
Specific Surface Area	2.0 m²/g	BET

Component Elements Properties	Original Value	Comments
Fe2O3	0.0070 %
Loss on Ignition(%)	34.6 % @Temperature 1000 °C
Na2O	0.030 %	soluble
	0.20 %	total
SiO2	0.0050 %

Descriptive Properties
Al(OH)₃ (%)	99.6
Functionality	Rapid Dispersion
	Smoke Suppression
Market/Application: Building & Construction	Cured-In-Place-Pipe
Market/Application: Thermoplastics	Pultrusion
Market/Application: Thermosets	Wet Mat

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EHUBER756 / 300862

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