1) Very smooth in writing
2) Water Base Ink
3) Instant dry on paper
4) Long shelf life
| Properties | Blue | Black | Red | Green |
|---|---|---|---|---|
| Ref. | SG 400 BLU | SG 400 BLK | SG 400 RED | SG 400 GRN |
| Brookfield Viscosity at 25°C, 12 rpm by 63 LV Spindle (cps) | 2500 ± 200 | 2500 ± 200 | 2500 ± 200 | 2500 ± 200 |
| Sour Alkalinity (PH) | 7.78 | 7.40 | 7.67 | 7.70 |
| Surface Tension (d/cm) | 36.00 | 39.00 | 38.00 | 36.00 |
| Specific Gravity (g/cm³) | 1.065 | 1.060 | 1.065 | 1.085 |
| Particle size (µ) | 0.5 - 0.7 | 0.5 - 0.7 | 0.5 - 0.7 | 0.5 - 0.7 |
| Water Resistance | Excellent | Excellent | Excellent | Excellent |
| Writing | Smooth | Smooth | Smooth | Smooth |
| Total Solid % | 33.18 % | 35.34 % | 33.82 % | 33.39 % |
| Tip Used (CRI / IWI / ESSEM) | 0.5 - 0.6 mm | 0.5 - 0.6 mm | 0.5 - 0.6 mm | 0.5 - 0.6 mm |
