BASF launches new bio-based Polyol for VOC-free* 2K PU applications

26 August 2015

BASF has extended its range of high-quality bio-based polyols sold under the Sovermol® trademark. The products are used for manufacturing extremely low-emission 2K PU coatings for interior and exterior applications. With Sovermol 830 BASF is launching a new polyol that makes indoor floorings, eg in industrial warehouses or sports halls, more resistant. As the resin is produced from renewable raw material and contains no volatile organic compounds* (VOC) it greatly contributes to the production of more sustainable coatings with particularly high levels of stability and durability.

Due to a specific chemical modification, the complex polyether-ester polyol has excellent water-repellent properties. It exhibits excellent curing properties, even in challenging curing environments with high humidity and temperature. Due to its high filling levels and low processing viscosity, Sovermol 830 helps to lower the overall cost of a formulation. In addition, the shore D hardness of this thermoplastic material exceeds 60. Despite the extended processing time of Sovermol 830, the material can be walked on after only one day, which ensures shorter downtimes and, consequently, lower costs.

The polyol can be used in coatings for industrial floorings, coatings exposed to potable water and semi-structural adhesives. Apart from its excellent abrasion and impact resistance, the product shows outstanding flexibility even at low temperatures, which prevents cracks from spreading in the substrate. It is, therefore, the ideal solution for durable coatings. A list of the raw materials that are used to produce the polyol in the ‘Guideline for the hygienic assessment of organic coatings exposed to potable water’ dated June 17, 2013 completes the product profile.

BASF offers coatings producers appropriate high-performance additives that can be combined with Sovermol 830. In addition, the company’s portfolio comprises suitable cross-linkers and co-binders that enable customers to achieve the required mechanical properties.
* VOC free according to the ‘Paints Directive’ (Directive 2004/42/EC of the European Parliament and of the Council of April 21, 2004 on the limitation of emissions of volatile organic compounds due to the use of organic solvents in certain paints and varnishes and vehicle refinishing products and amending Directive 1999/13/EC).

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