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Kolliphor® P 338 is supplied as white or almost white, coarse grained powder with a waxy consistency. It is freely soluble in water (opalescent solution) and ethanol; insoluble in diethyl ether, paraffin and fatty oils.


  • Suitable for a broad range of applications
  • HLB value >24
  • It primarily used as thickening agents and gel formers but also as wetting agents, as emulsifiers and solubilizers
  • It shows characteristic property of thermoreversible gelation upon cooling or heating
  • The high performance and safety is backed by comprehensive documentation


Plasticizers, Emulsifiers / Surfactants, Gel formers, Solubilizers

Technical Overview

Compendial Name

polyoxyethylene-polyoxypropylene, alpha-hydro-omega-hydroxypoly(oxyethylene)a poly(oxypropylene)b poly(oxyethylene) a block copolymer, Polyethylene-polypropylene glycol, Poloxamer 338

Region of Manufacture

Package Size

  • 0,5KG Plastic bottle
  • 80KG Fiber drums
  • not specified

See all technical details about Kolliphor® P 338 Geismar

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