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Cosmetics Ingredients
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Cosmetics Ingredients
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Eastman AQ™ 38S Polymer

Technical Datasheet | Supplied by Eastman
Polyester-5. Eastman AQ™ 38S Polymer by Eastman acts as a film former. It is a sulfopolyester that disperses directly in hot water without the assistance of amines, co-solvents, surfactants or other additives. Exhibits no neutralization, quick drying and water resistant properties. Aids the dispersion of many hydrophobic ingredients in water-based products and forms clear films at room temperature from aqueous dispersions. Because of its low Tg, it forms flexible films on the skin. It imparts a smooth feel to creams, lotions, sprays and adheres to the skin. Eastman AQ™ 38S Polymer provides improved coverage for sprayable sunscreens. It also aids the emulsification of oil-phase UV absorbers. Used in creams, lotions, skin care, low-viscosity hair sprays and sun care.
  • Film Formers
  • smoothness
  • water-resistant / waterproof
  • coverage
  • drying time reducing/ fast drying
INCI Names
Pellets, Solid
Amber, Pale amber
Product Status
Applications/ Recommended for
  • Sun care (Sun protection, After-sun & Self-tanning)
  • Skin care (Facial care, Facial cleansing, Body care, Baby care)
  • Hair care (Shampoos, Conditioners & Styling) > Styling/Hair sprays
Regulatory Status
Bio Based

Eastman AQ™ 38S Polymer Properties


Value & Unit
Test Condition
Test Method
Glass Transition Temperature (Tg)
35 - 38 °C
(Dry polymer)
Acid Value
< 2 mg KOH/g
Hydroxyl Value
< 10 mg KOH/g

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