Introduction
WQ-277 is a room-temperature self-crosslinking styrene-acrylic copolymer emulsion designed for water-based overcoat varnishes and printing inks. It demonstrates excellent compatibility with widely used acrylic polymers. Furthermore, in flexographic and gravure inks, the product exhibits strong pigment wetting properties.
Physical Property
| Appearance | Translucent milky emulsion |
| Solid content (%) | 45±1 |
| Viscosity at 25℃,cps(Brookfield, LVT No.4,60 RPM ) | 1800-2500 |
| Acid value | 55 |
| pH value | 8.0-9.0 |
| Density(g/l) | 1.02-1.05 |
| Particle size(μm) | 0.10-0.20 |
| MFFT (℃) | >0 |
| Tg(℃) | +21 |
Performance
◆ Low smell, low VOC
◆ Cost-effective self-crosslinking film-forming emulsion
◆ Good transparency and anti-blocking
◆ Good water resistance
◆ Excellent color development
Application
◆ Varnish and Ink for Flexo and Gravure
◆ Water-based UV primer
◆ High definition ink
Storage
The product should be stored in a closed container and avoid freezing and high temperature,
Suggested normal storage temperature is 10 to 35℃.
