Alumina Tri-Hydrate (ATH)

Want to keep this datasheet? Save it now in your required format

Description

GNPGraystar’s ATH 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 with a large super fine faction yields rapid dispersion in resin. Excellent mold flow and wet-out characteristics result in superior surface profile, minimal porosity, even pigmentation, and excellent filler and reinforcement distribution throughout the molded part.

This material data has been provided by GNPGraystar Specialty Materials.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyTemperatureValueComment

Bulk density

0.65 - 1.0 g/cm³

Show Supplier Material materials with Bulk density of 0.65 - 1.0 g/cm³

respectively for loose and packed

Loss on Ignition

34.6 %

Show Supplier Material materials with Loss on Ignition of 34.6 %

at 1000°C

Particle size range

9.0 µm

Show Supplier Material materials with Particle size range of 9.0 µm

Relative density

2.42 [-]

Show Supplier Material materials with Relative density of 2.42 [-]

Specific surface area

2.0 m²/g

Show Supplier Material materials with Specific surface area of 2.0 m²/g

BET

Water content

105 °C

0.3 %

Show Supplier Material materials with Water content of 0.3 %

Chemical properties

PropertyValueComment

Aluminium

99.6 %

Show Supplier Material materials with Aluminium of 99.6 %

Al(OH)₃

Iron

0.007

Show Supplier Material materials with Iron of 0.007

Fe₂O₃

Silicon

0.005

Show Supplier Material materials with Silicon of 0.005

SiO₂

Sodium

0.24

Show Supplier Material materials with Sodium of 0.24

Na₂O

0.03

Show Supplier Material materials with Sodium of 0.03

Soluble sodium oxide

Technological properties

Property
Application areas

GNPGraystar’s ATH was developed especially for SMC, BMC, resin injection, and high solids coatings.

Other

Screen Analysis:

on 325 mesh: 0.1 %

through 325 mesh: 99.9 %

Less than 10µm: 53%


TAPPI Brightness: 89

Oil absorption: 28 ml, boiled linseed oil per 100 gm filler