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Rokopol® RF551

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PCC Rokita SA / Polyols Business Unit
Chemical name
Polyoxyalkylene sorbitol.
ISO 14001 ISO 14001 ISO 50001 ISO 50001 ISO 9001 ISO 9001 ISO 45001 ISO 45001 Safe product Safe product Universal product Universal product
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Rokopol® RF551 is a general purpose polyether sorbitol polyol used for production of polyurethane (PUR) rigid and semi-rigid foam production in reaction with isocyanate. It mixes well with water. It exists in form of a clear, colourless to yellow liquid. It contains antioxidants (excluding BHT). It retains low viscosity (ca. 3000-5000 mPas) at relatively high functionality of f~4.5 and high hydroxyl value of 400-440 mgKOH/g.

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Properties and applications
  • has very good mechanical and thermal insulation parameters,
  • ensures long gelation times of the PUR foam,
  • high dimensional stability of the foams in high and low temperatures,
  • used in closed-cell foams used for thermal and refrigeration insulation,
  • used as a component for production of sandwich panels and PUR insulation boards,
  • widely used in the construction industry.

Markets and applications
Building & Construction / Insulation board, Pipe-in-pipe insulation, Sandwich panels, Thermal & acoustic spray systems, Wire & cable insulation
Raw materials and intermediates
Refrigeration industry and household appliances / Boilers, Industrial coolers, Refrigerators

Rigid foams / Block foams, Casting foams, Spray foams

Polyether polyols / Sorbitol polyols

Polyurethanes / Polyether polyols

Alternative names
Polyoxyalkylene sorbitol., Sorbitol based, sorbitol, sugar based, sugar polyol, glucidol, sorbogem, sorbo, (2S, 3R, 4R, 5R)-Hexane-1, 2, 3, 4, 5, 6-hexol, sorbitol polyoxypropylene ether, sorbitol propoxylated polyol, sorbitol alkoxylated polyol.
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