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Polymer Additives
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Chiguard® 5540

Technical Datasheet | Supplied by Chitec Technology
HSP Distance with WESTON® TPP: 2.8
2,4-Di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate. Acts as a UV light absorber (benzoate ester). Provides very good thermal stability and preserves tensile and elongation properties of the polymers to protect the surface from cracking. Doesn’t add any initial color to the substrate or polymer, as it doesn't absorb visible light. Particularly useful in stabilizing pigmented polymers, especially in cases where the pigment itself contributes to the degradation of the polymer.
Product Type
Light Stabilizers / UV Absorbers > Benzoates
Chemical Composition
2,4-Di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate
CAS Number
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