Rokopol® vTec770 is a polyether polyol. It exists as a homogeneous liquid free of mechanical impurities, which may be opalescent. It contains antioxidants (excluding BHT). It has hydroxyl value within the range of 233-252 mgKOH/g and its dynamic viscosity is within the range of 200-300 mPas at temp. 25°C.
Rokopol® vTec770 is used for production of viscoelastic polyurethane foams using the continuous system (slabstock) and for periodic production (batch). Using Rokopol® vTec770, reactive supplementing polyols and properly selected additives (catalysts, silicones, foaming agents), viscoelastic blocks of rectangular cross-section and height up to 70 cm can be produced.
Main advantages of application of Rokopol® vTec770:
possibility to manufacture foams of density within the range 40-80 kg/m3 and hardness within the range 1-3kPa, and elasticity up to 55%,
tear resistance of the foam is above 50kPa and relative elongation at rupture above 60%,
foam recovery time 1-10 s,
reduced foam hardness in low temperatures.
Most popular applications of Rokopol® vTec770:
viscoelastic foams (Memory Foam) and polyurethane foams,
All the above information related to the product are provided according to the best knowledge of the manufacturer and published in good faith. However, the manufacturer does not guarantee the information and contents of this document are complete and accurate, and shall not be liable for the results of using them. The user is obliged to verify and confirm the information and contents of this documentation on his/her own. The manufacturer reserves the right to change the content of this document at any time without stating reasons of such changes.
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