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Chiguard® W-5491 High-Performance Water-Based UV Stabilizer

Chiguard® W-5491
High-Efficiency Waterborne UV Stabilizer — Advanced Protection for Wood Coatings

Chiguard® W-5491 is a high-performance UV stabilizer tailored for exterior wood coatings. Using red-shifted UV absorption technology, it effectively blocks high-energy UV rays and slows wood photodegradation. Its simplified formulation delivers long-lasting weather protection, extending color retention and coating lifespan.

Key Benefits

  • Single-component high efficiency — no HALS required
  • Passed 1152-hour xenon test with ΔE only 9.57
  • Ultra-low emulsifier — minimizes foaming during application
  • Solvent-free and co-solvent-free — process-friendly
  • Zero impact on coating flow properties
  • Red-shifted UV absorption — ideal for outdoor durability

Recommended Applications

  • Outdoor Wood Coatings | Boardwalks, outdoor furniture, siding
  • High-End Waterborne Systems | Transparent & semi-transparent coatings
  • Sustainable Projects | Performance + environmental balance

 

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About Chitec

Chitec was founded in 1998 by Dr. Chris Chiu and is headquartered in Taipei, Taiwan, with branch offices in Houston, USA, and Shanghai, China. Chitec has authorized over 20 sales distributors worldwide, spanning five continents. The company operates two manufacturing plants, both located in Taiwan, with one in Hsinchu and the other in Changhua.

Chitec specializes in the research and development of high-performance chemical additives for various industries, including electronics, automotive, aerospace, construction, packaging, and synthetic fibers. Over the years, Chitec has steadily built up its major product lines, which include UV stabilizers, antioxidants, photoinitiators, and flame retardants.

Chitec focuses on the R&D of specialty chemical additives for various industries, including electronics, automotive, aerospace, construction, packaging, and synthetic fibers. During this time, Chitec has steadily built up its major product lines, including UV stabilizers, Antioxidants, Photoinitiators, and Flame retardants.







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