Clariant Hostavin® 3326 DISP is a 52% solids aqueous dispersion of broad-spectrum benzotriazole UV absorber. It has excellent compatibility and high efficiency in waterborne coatings and clearcoats, especially suitable for weathering protection of exterior wood coatings.es.
Has broad-spectrum UV absorption capacity, covering multiple UV bands and comprehensively resisting UV damage to coatings.
52% aqueous dispersion form, easy to disperse uniformly in waterborne systems without agglomeration risk, compatible with various waterborne coating formulations.
Excellent compatibility with waterborne coatings and clearcoats, without affecting key properties such as gloss, adhesion and drying rate of coatings.
High UV protection efficiency, effectively delaying fading, chalking and cracking of outdoor coatings, and extending coating service life.
Significant protective effect on exterior wood coatings, balancing the weathering stability of wood substrates and coatings.
Suitable for waterborne exterior wood coatings, providing long-term UV protection for wooden houses, fences and outdoor wooden furniture.
Compatible with waterborne clearcoats, achieving efficient UV shielding without changing the original color of substrates.
Applicable to waterborne decorative wood coatings, ensuring the color durability of colored wood coatings.
Used in waterborne bamboo coatings, improving the weathering performance of coatings for outdoor bamboo products.
Suitable for waterborne composite board coatings, enhancing the anti-aging ability of composite boards for outdoor use.
| Characteristic | Unit | Target Value |
|---|---|---|
| Appearance | - | Opaque off-white aqueous dispersion |
| Active Ingredient Content | % | 52 ± 1 |
| UV Absorber Type | - | Broad-spectrum Benzotriazole Derivative |
| pH Value (25°C) | - | 7.5 - 9.0 |
| Viscosity (25°C) | mPa·s | 200 - 1000 |
| Density (25°C) | g/cm³ | 1.06 - 1.13 |
| Particle Size (D90) | μm | ≤ 5.0 |
| Storage Stability (25°C) | - | Stable for 12 Months |
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