DESCRIPTION
TC20 is a low dust, yellow powder. This is a stable and non-hygroscopic powder with a low tinting strength, it is easily dispersed.
Technical data
| NOMINAL VALUE | TOLERANCE (+/-) | TEST METHOD | |
|---|---|---|---|
| Cr as CrO3 content (%) | 16.0 | min | ICP |
| Zn as ZnO content (%) | 68.5 | min | ICP |
| Oil absorption (cm3/100g) | 35 | 5 | ISO 787-5 |
| Sieve residue - 45 microns (%) | 0.05 | max | ISO 787-7 |
| Density (g/mL) | Typ. 3.8 | ISO 8130-2 | |
| D50 (μm) | Typ. 5 | ISO 13320 | |
| Fineness Hegman | Typ. 5.5 | ISO 787-5 ISO 1524 | |
| Water soluble CrO3 (g/L) | Typ. 0.15 | ISO 1249 | |
| Moisture content (%) - 1h at 105°C | Typ. 1.0 | ISO 787-2 | |
| Bonded water content (%) - 1h at 320°C | Typ. 10 | Gravimetry | |
| RECOMMENDED SHELF LIFE : 5 YEARS |
FORMULATORS GUIDELINES
TC20 is recommended for use in all sorts of temporary protection systems. It is particularly recommended for shop primers and wash primers designed for steel and aluminium protection.
