Tinuvin® 123-DW ECO

Tinuvin® 123-DW ECO by BASF is an aqueous, non-basic hindered amine light stabilizer (HALS) for water-based coatings. It provides long-term protection against UV-induced degradation by minimizing gloss reduction, cracking, and chalking while improving the retention of mechanical properties.

• It offers excellent thermal stability and is non-migrating, and compatible with acidic paint ingredients such as catalysts and surfactants.
• It also preserves dry-film properties including color, transparency, and gloss without adversely affecting water sensitivity, hardness, scratch resistance, or blocking resistance.
• Tinuvin® 123-DW ECO is recommended for water-based formulations with a pH range of 4.5–12, including acrylics, one- and two-component polyurethane dispersions (PUD), and UV-curable coatings.
• Its applications include automotive, industrial, architectural, wood, plastic, glass, and ceramic coatings, as well as overprint varnishes.
• For transparent and semi-transparent outdoor coatings, it is recommended to use the product in combination with a suitable UV absorber for optimum weathering performance.
• Typical dosage levels (based on active ingredient relative to total binder solids) are 0.5–1.0% for clear coatings, 1.0–1.5% for semi-transparent coatings, and 1.5–3.0% for opaque coatings.