Ludwigshafen, Germany -- BASF has launched a new bio-based polyester/polyether polyol for 2K polyurethane applications, which, it said, can produce VOC-free coatings.
Designated Sovermol 830, BASF said the material is aimed at indoor flooring applications in sports halls and warehouses. The firm adds that it has low processing viscosity and can be highly filled. It also has an extended working time, compared with other materials, but can be walked on within a day of application, said the firm.
The material is described by BASF as a branched oleochemical polyether/ester with an acid number of <3.0mg KOH/g and dynamic viscosity at 25ºC between 750-100 mPAs. It is designed to be used with polymeric MDI and the resulting mixture is water repellent, has self-levelling properties and low viscosity, said the firm.
Gell-time is around 55min at 23ºC and Shore A(D) hardness increases from A70 (D25) after one day to Shore A 100 (D65) after 28 days, said BASF.
The company adds that the key natural oil is not used as a human or animal feed and the raw material backbone of Sovermol 830 is used in the pharmaceutical and cosmetic industry. BASF said that over 90% of the polyol is renewable.