Chiguard® 5540 by Chitec Technology is benzoate-based UV light absorber. It provides very good thermal stability and preserves tensile and elongation properties of the polymers to protect the surface from cracking. It doesn’t add any initial color to the substrate or polymer, as it doesn't absorb visible light. Chiguard® 5540 is particularly useful in stabilizing pigmented polymers, especially in cases where the pigment itself contributes to the degradation of the polymer.
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Chiguard® 5540 properties
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| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Absorbance | 0.0 Visible After Login | Visible After Login | Visible After Login |
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