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Hubergroup HN 434

HN434 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.

Functions: Flame Retardant

Chemical Family: Aluminum Compounds, Trihydrates

Labeling Claims: Halogenated hydrocarbons-free

Features: Low Viscosity, Smoke Suppressant

Technical Data Sheet
  • TypeDocument Name
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Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
CAS No.
21645-51-2
EC No.
244-492-7
Technologies

Features & Benefits

CASE Ingredients Features

Applications & Uses

Recommended Application

A closely controlled top size with a large superfine fraction yields rapid dispersion in resin. Excellent mold flow and wet‐ out 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.

Properties

Physical Form
Dispersible in
Resin
Chemical Properties
ValueUnitsTest Method / Conditions
Free Moisture Content (TGA, 105°C)0.35%
Al(OH)₃99.6%
Fe₂O₃max. 0.02%
Na₂O (Soluble)0.03%
Na₂O (Total)0.2%
SiO₂max. 0.04%
Physical Properties
ValueUnitsTest Method / Conditions
Bulk Density (Packed)1100g/l
Brightness Ry94%
Median Particle Size9.5microns
OIl Absorption22.0ml/100gm
Hardness (Mohs)3
Loss on ignition, 550° C34.5%
Screen Analysis <10 micron51.3%
Screen Analysis <45 micron99%
Screen Anaysis <1 micron8.6%
Specific Gravity2.42gm/cm³
Surface Area BET3m²/g
Electrical Conductivitymax. 130μS/cm
CIELAB, L*98.0
Typical Properties
ValueUnitsTest Method / Conditions
Generic TypeAlumina Trihydrate
MorphologyHexagonal Platelets

Packaging & Availability

Packaging and Storage
  • 25 kg paper bag and 1000 kg pallet
  • The product should be stored under dry and clean conditions in its original packing. The moisture content may increase if not stored under dry conditions.