Super Dispersion and Stability
Principal Application:
Interior/exterior architecture paints,normal grade solvent-base paint,industrial paint,powder coating,paper laminate and plastic master batch etc.
Outstanding Properties:
●Neutral color
●Easy to wet and disperse
●Moderate,stable color dispersing and covering
●Good whiteness and stable color phase in finished white product
Fundamental Properties:
Production Method-------------------------------------------------Rutile pigment by sulfate process
Surface Treatment------Inorganic coatings by silica,aluminia and special organic treatment
Classification(ISO 591-1)---------------------------------------------------------------------------------R2
Specific gravity (ISO 787-10)-------------------------------------------------------------------3.9 g/ cm3
TiO2 content--------------------------------------------------------------------------------------93.0% min.
Volatiles at 105 ℃ when packing(ISO 787-2)--------------------------------------------0.5% max.
Water solubles (ISO 787-2)--------------------------------------------------------------------0.5% max.
Residues on 45 μm sieve (ISO 787-18)--------------------------------------------------0.05 % max.
Rutile transformation rate------------------------------------------------------------------------97% min.
Application Conditions:
Oil phase whiteness (L*) ( Remarks 1)-------------------------------------------------------94.5-95.0
Color Phase (b*) (Remarks 1)----------------------------------------------------------------------1.7-2.3
Relative scattering power (ISO 787-24)--------------------versus standard sample (95-105)%
Color in natural color system (ISO 787-25)-------------------close to standard color △E≤0.3
pH in aqueous suspension (ISO 787-9)----------------------------------------------------------7.0-8.5
Oil absorption (ISO 787-5)-------------------------------------------------------------------≤20 g/100g
Water extraction specific resistance (ISO 787-14)--------------------------------------≥50 Ω ·M
Dispersion in alkyd system by high speed mixing (Remarks 2)--------------------------≤25 μm
Remarks:
Remarks 1: The determination of oil phase whiteness (L*) and color phase (b*): Grind Titanium Dioxide with flat abrasion tester to make film with thickness of 100 μm and then use colorimeter to calibrate with ASTM standard ceramic tile. To determine the surface of the film by indication with CIE L*,a* and b*.
Remarks 2: The determination of alkyd system dispersion by high speed mixing: To determine by using fineness gauge after dispersion by high speed mixer in alkyd resin formulations. All other items are tested according to ISO standards.
