Architectural Coatings / Exterior / Baryte

Baryte

Natural baryte (barium sulphate, chemical formula BaSO4) can be characterised by:

 

  • High inertness in various media
  • High density and, as a result, low oil absorption
  • Medium Mohs hardness of 3
  • Easy wetting
  • Easy to disperse.
    (also compared to precipitated barium sulphate)

 

Natural barium sulphate comes without any residual salts when compared to precipitated grades. In addition, natural barytes are easier to disperse than precipitated grades.

 

Basic properties

Property B C D Unit
Moisture 0.1 [%]
pH 9 [-]
Hardness (Mohs) 3.5 [-]
Refractive index 1.64 [-]
Colour (D65/ 10°) L* 96 91.5 beige [-]
BaSO4 + SrSO4 98.5 96.5 [%]
SiO2 1 3 [%]
Fe2O3 0.05 0.3 [%]
Density 4.4 [kg/ dm3]

 

Product overview

Product Grade D50

[µm]

D97

[µm]

OA

[g/ 100 g]

Portaryte B2 1.1 2.8 12
B3 1.3 3.7 12
B4 1.5 4.5 11
B5 1.9 6.0 11
B8 2.2 8.0 11
B10 2.6 11.0 10
B15 3.4 16.0 10
B25 5.5 25.0 10
B45 13.0 45.0 9
B40/10 17.0 38.0 12
B50/10 21.0 60.0 11

 

Product Grade D50

[µm]

D97

[µm]

OA

[g/ 100 g]

Portaryte C15 3.5 16 10

 

Brand Grade D50

[µm]

D97

[µm]

OA

[g/ 100 g]

Portaryte D15 4.5 16 10
D20 6.0 20 10
D40 8.0 36 9
D50 10.5 54 9
D80 13 85 8

 

Production locations Portaryte

 

Application

Baryte will provide:

 

  • UV resistance and weatherability: due to its inertness, baryte supports good UV and weatherability performance to exterior architectural coatings.

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