Chiguard® 328 by Chitec Technology is an off-white, 2-(3',5'-di-t-amyl-2'-hydroxyphenyl) benzotriazole. Acts as a ultraviolet (UV) light absorber. Exhibits non-yellowing property (during baking stage). Is more solvent soluble & less volatile and possesses high solubility, better resin compatibility and washfastness than other substituted benzotriazoles. Suitable for polyolefins, styrenics, two-component epoxies and thermoplasic urethane and related polyurethane. Chiguard® 328 is used in adhesives and recommended use level ranges between 0.1% and 0.5%.
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Chiguard® 328 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Assay | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Boiling Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
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| Molecular Weight, Mw | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solubility in Ethanol | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solubility in Ethylacetate | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solubility in Methyl ethyl ketone | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solubility in Mineral spirits | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solubility in Styrene | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Transmittance, Visible | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Transmittance, Visible | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Volatile Content | 0.0 Visible After Login | Visible After Login | Visible After Login |