TINUVIN 479-DW (N)
TINUVIN 479-DW (N)
TINUVIN® 479-DW (N) is an aqueous UV absorber dispersion developed for waterborne coatings. Based on a red shifted hydroxyphenyl-s-triazine chromophore, it is suited for coatings and substrates requiring strong UVA range wavelength protection. Its high heat stability and excellent photo-permanence provide superior UV stabilization and fulfill the requirements of high performance industrial, decorative, and wood coatings.
TINUVIN 479-DW (N) is recommended for clear and lightly pigmented coatings in applications such as:
- Wood stains and varnishes, wood care products, waxes
- Coatings on plastics (films, bottles, containers)
- Coatings on PC and PMMA sheets, panels, glasses
- UV blocking varnishes on printed materials (paper, board, wood)
- Glass coatings (architectural glazing, packaging)
- Adhesives and bonding layers
This product is particularly suited for the protection of UVA range sensitive substrates, prints, or contents. Its very high thermo- and photo-stability and high water leaching resistance confer an extremely durable protection to coatings and coated substrates. It protects efficiently the color and appearance of natural and stained wood. It is also suited for UV blocking varnishes on tinted or printed materials to prevent fading of the prints.
Features & Benefits
- Encapsulated hydroxyphenyl-triazine with excellent absorbance in the UV-A region
- Enables formulating of low/zero VOC coatings
- Ease of incorporation into water based coatings
- Excellent photo-permanence
Properties
| Typical Properties | Value |
| Appearance | Light yellow dispersion |
| UV Absorber Content | 22 w/w % (TINUVIN 477) |
| Solid Content | 40 w/w % |
| Particle Size DINT | < 200 nm |
| pH | 6 – 9.5 |
| Dynamic Viscosity at 25°C | ~ 50 cps |
| Density at 20°C | 1.05 g/cm3 |
* These typical values should not be interpreted as specifications.
