Rubber / Rubber Compounding / ATH

ATH

Mineral: ATH

 

ATH (aluminium tri hydrate, chemical formula Al(OH)3is an intermediate product of aluminium production, characterised by:

  • High purity
  • High whiteness
  • Relatively low density of 2.4g/cm3 compared to other mineral fillers, which are typically at 2.7g/cm3
  • Medium Mohs hardness of 3
  • Decomposition around 200°C, releasing water

 

Basic properties

Property Value Unit
Moisture < 0.4 [%]
pH 9 [-]
Hardness (Mohs) 3 [-]
Refractive index 1.57 [-]
Electrical conductivity 60 [µS/cm]
L.O.I. 34.5 [%]
Density 2.4 [kg/ dm3]

 

Products: 

Product Grade D50

[µm]

Portaflame SG 7HB 2.3
10 3.8
25 8
35 15
40 11.5
50 16
63 23
10 LSA 3.3
25 LSA 5
30 LV 24
55 LV 15
10 S8 3.8

 

Production locations: Maastricht (NL), Geertruidenberg (NL), Poviglio (IT), Balaruc (FR), Brassington (UK), Ramensky (RU)

Application: Portaflame SG products make rubber compounds flame retardant.

Functionality: Safety

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