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TiO2 GR-8558

Description
GR-8558 is sulphate-processed rutile TiO2 coated organically with silica (dense silicon) and alumina as surface treatment. It is a special grade for outdoor waterborne and solvent-based coatings with high requirements for weather resistance.
Key features
  • High weather resistance
  • High coverage
  • High gloss
  • Easy dispersion
Attributes
Crystal Rutile
Inorganic Coating Alumina
Organic surface Have
Standard Classification (IS0 591-1) R2
Density (ISO 787-10) 4.0g/cm3
Specifications
Indicator   Standard Typical value
Titanium dioxide content, % >= 92 95.5
Rutile content, % >= 97 98
Brightness L value, % >= 93.5 94.5
Tinting Strength (Reynolds Index), >= 1750 2050
Volatile Substances at 105°C, >= 0.5 0.5
PH value of water suspension   6.0-9.0 7.5
Oil absorption, g/100g <= 23 22
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