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Tiansorb 531 is a solid UV-absorber of the 2-hydroxy-benzophenone class.

Functions: UV Absorber

Chemical Family: Benzophenones

End Uses: Clearcoat, Solventborne Coating

Features: Good Gloss Retention, High Durability, Improves Adhesion

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family
    CASE Ingredients Functions
    Chemical Composition
    2-hydroxy-benzophenone derivative
    Technologies

    Features & Benefits

    Applications & Uses

    Compatible Substrates & Surfaces
    Applications

    Tiansorb 531 significantly improves the resistance of clear coatings to failures upon exposure to sunlight such as discoloration, cracking, loss of gloss and loss of adhesion. Its performance can be improved further by use in Synergistic combination with a hindered amine light stabilizer (HALS) such as Tiansorb 292 or Tiansorb 123. Use of Tiansorb 531 should be reserved for applications where expectations of the final coating's durability are moderate since the light stability of it is known to be limited.

    Properties

    Physical Form
    Appearance
    Slight yellow powder

    Technical Details & Test Data

    Recommended Concentrations

    Concentrations are based on weight percent binder solids %

    Interior clear coating 1.0-3.0% Tiansorb 531
    Exterior clear coating 1.0-3.0% Tiansorb 531
      +0.5-2.0% Tiansorb 292 or Tiansorb 123

     

    UV Transmittance Spectrum

    Toluene Solution, 1 cm cell thickness

    Shanghai Tiansheng Chemical TIANSORB 531 UV Transmittance Spectrum