ZINC PHOSPHATE PZ20

ZINC PHOSPHATE TETRAHYDRATE, Zn3(PO4)2, 4H2O

DESCRIPTION

ZINC PHOSPHATE PZ20 is a corrosion inhibiting pigment suitable for a wide range of applications, from DIY to more demanding ones such as coil coating. It is a stable and non-hygroscopic white powder with a low tinting strength, it is easily dispersed.

Thanks to its low solubility, ZINC PHOSPHATE PZ20 is compatible with a wide range of solvent and water based resins.

Technical data

 NOMINAL VALUETOLERANCE (+/-)TEST METHOD
Zn content (%) - on the ignited product​50.02.0ICP
PO4 content (%) - on the ignited product​48.02.0ICP
Oil absorption (cm3/100g)​275ISO 787-5
Sieve residue - 45 μm (%)​0.05maxISO 787-7
pH6.51.0ISO 787-9
Pb content (ppm)100maxICP
Cd content (ppm)100maxICP
Density (g/mL)Typ. 3.2ISO 8130-2
D50 (μm)​Typ. 7ISO 13320
Fineness HegmanTyp. 5.5ISO 787-5
ISO 1524
Bonded water content (%) - 1 h at 600°C Typ. 15.7 Gravimetry
RECOMMENDED SHELF LIFE : 5 YEARS

Formulators Guidelines

Excellent:      Good:      Possible:      Not yet tested: __     Not recommended: nr

* : Normally used in association with other pigments (ex : ion exchanged Silica)

Solvent BasedPerformance 
Short oil alkyd
Medium oil alkyd
Long oil alkyd
2K epoxy
High solid epoxy
Epoxy ester
PU
Water BasedPerformance 
Water reducible alkyd
Alkyd emulsion
Epoxy ester
2K epoxy
Acrylics and modified acrylics
Specialty coatingsPerformance 
Wash primer
Coil coating *
Powder coating

Best performances are obtained with a typical loading of 5 to 12% by weight on the total formulation and a PVC ranging from 20 to 40%.

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