Chiguard^® W-5491 (W-5491) is a highly effective waterborne UV stabilizer for wood coatings. It can achieve a better color protection with a lower dosage. Lignin is sensitive to UV and turns yellow rapidly, while W-5491 shows a robust performance window after several different test environments.

Key features and benefits

1. Extremely low emulsion agent content to lessen the foaming issues.
2. Instantly miscible with waterborne resins.
3. Free of solvents or coalescing agents.
4. Does not affect the flowability of the resulting coatings.
5. The UV absorption is more red-shifted, compared to its predecessor, W-5481.