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Sulphur containing co-stabilizer for plastic materials

Hostanox® SE 4 flakes

Hostanox SE 4 flakes is a highly effective secondary antioxidant for various plastics.
  • Highly effective secondary antioxidant for various plastics
  • Synergistic with phenolic antioxidants such as Hostanox O 3
  • Enhance the long term heat stability and colour stability of PP compounds
  • Hostanox SE 4 flakes has a faint, characteristic odour
Classification according CLP regulation (Regulation (EC) No. 1272/2008, as amended)
    Chronic aquatic toxicity, Cat. 3
For further information please refer to the Material Safety Data Sheet.
Chemical Composition

Chemical nature:        Dioctadecyl 3,3`-thiodipropionate

Classification:             Sulphur containing co-stabilizer

 Delivery Specifications and (*) General Properties
CharacteristicsUnitTarget ValueTest Method
Appearance white to slightly yellow flakesQM-AA-634
Acid Value[mg KOH/g]max. 2QM-AA-973
Volatility[%]max. 0.5QM-AA-974
Purity[%]min. 93QM-AA-975
Transmission at 425 nm[%]min. 97QM-AA-976
Transmission at 500 nm[%]min. 98QM-AA-976


The application range of Hostanox SE 4 flakes covers polyolefins (particularly polypropylene) and their copolymers, styrene polymers, polybutene-1, polyoxymethylene and other organic substrates. Hostanox SE 4 flakes is highly synergistic with phenolic antioxidants such as Hostanox O 3, or combinations of phenolic antioxidants with phosphorus-based processing stabilizers. It is preferably used to enhance the long term heat stability and colour stability of the polymers.
Packaging and Handling
Delivery form

Polyethylene bag 25 kg
Pallet 500 kg (20 bags)
Polyethylene bag 20 kg
Pallet 600 kg (30 bags)

Minimum shelf life is three years from date of shipping when properly stored.
For best shelf life store this product in a dry area at normal ambient temperatures.

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Hostanox® SE 4 flakes

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