of specialty chemicals

Rokopol® RF551

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PCC Rokita SA / Polyols Business Unit
Chemical name
Polyoxyalkylene sorbitol
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Leaflet Inventory status General terms of sale

Rokopol® RF551 is a general purpose sorbitol based polyether polyol for production of rigid and semi-rigid polyurethane foam (PUR) in reaction with isocyanate. The product has liquid form, ranging from transparent to yellow colour, containing BHT free antioxidants. It retains low viscosity of ca. 3000-5000 mPas with relatively high functionality f=4.5 and high hydroxyl value of ca. 440mgKOH/g.

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Properties and applications
  • Very high quality of the end product based on the physicochemical properties of the polyol;
  • Applied in closed cell foams designed mainly for construction industry insulation systems;
  • Used as a component for production of sandwich panels and insulation panels;
  • Marked by very good mechanical and thermal insulation parameters, the product provides long gelling times of the PUR foam systems PUR;
  • Perfectly suitable both for high temperatures (up to c. 120°C) as well as low temperatures (to -35°C);

Markets and applications
Building & Construction / Insulation board, Pipe-in-pipe insulation, Sandwich panels, Thermal & acoustic spray systems, Wire & cable insulation
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
About the producer