Polysiloxane Leveling Agent
CAS Number: 68083-14-7
Polyether-modified polysiloxane leveling agent that provides superior substrate wetting, cratering prevention, and surface smoothness in waterborne and solvent-borne coating systems. Its unique molecular architecture migrates to the film surface at controlled speed to establish a uniform orientation layer. Low addition levels are sufficient to overcome surface tension differentials.
Technical Specifications
| density | 1.00 – 1.05 g/cm³ |
| viscosity | 50 – 500 mPa·s (25°C) |
| appearance | Clear to slightly hazy liquid |
| active content | ≥ 98% |
| refractive index | 1.440 – 1.460 |
Applications
- Waterborne and solvent-borne industrial coatings
- Automotive OEM and refinish paints
- UV-curable coatings and inks
- Architectural high-gloss paints
- Electronic encapsulants and conformal coatings
Key Features
- Excellent crater prevention and substrate wetting
- Superior surface smoothness and gloss
- Low effective dosage (0.05–0.5%)
- Good re-coat and intercoat adhesion
- Compatible with both waterborne and solvent-borne systems