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UV absorber for coatings and plastic materials

Hostavin® ARO 8 powder

Hostavin ARO 8 powder is a hydroxy-benzophenone UV absorber for the application in coatings and plastic materials.
  • Cost effective UV absorber for many plastics and solvent-borne coatings

Classification according CLP regulation (Regulation (EC) No. 1272/2008, as amended). 
    Skin sensitization, Cat. 1
    Long-term (chronic) aquatic hazard, Cat. 3
For further information please refer to the Material Safety Data Sheet.

Chemical Composition

Chemical nature:        Octabenzone

Classification:             UV absorber


Delivery Specifications and (*) General Properties 

CharacteristicsUnitTarget valueTest Method
Appearance  yellow powderQM-AA-634
Melting point[°C]min. 47QM-AA-146
Volatility[%]max. 0.5QM-AA-341
Gardner color max. 8ISO 4630


Application Coatings

Hostavin ARO 8 powder is recommended for low to moderate stabilization requirements. It can be used in most of the solventborne coatings, and is particularly recommended for wood coatings.
To ensure optimal stabilization, clear coats require not only UV absorber but also HALS. Depending on the binder, a traditional HALS, e.g. Hostavin 3055 or Hostavin 3065, or a non-basic HALS, e.g. Hostavin 3058, should be used in combination with Hostavin ARO 8 powder.

Applications Plastics
Hostavin ARO 8 powder protects polymers against damage from UV by physical transformation of the UV radiation into heat. It is recommended especially for LDPE, HDPE, PP, PVC, PS, PS HI, ABS/SAN, PET, PBT, PC, POM and TPU.
Packaging and Handling

Delivery form

Cardboard box 25 kg
Pallet 500 kg (20 cardboard boxes)

Minimum shelf life is three years from date of shipping when properly stored.
Store in a dry place at temperatures below 30°C.

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Hostavin® ARO 8 powder

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