Sasolwax Flex is a novel Sasol Wax International AG development comprising Sasobit plus Polymer plus a cross-linking agent.

In addition to the benefits of Sasobit outlined above in improving high temperature stiffness (DSR), the Polymer contributes to elasticity at low temperatures in meeting the desired flexibility (BBR). The proprietary cross-linking agent (Sasolwax Link TX) establishes a Polymer network system thereby working more effectively and providing opportunity for reduced Polymer loading in meeting target PG specifications. The Polymer selected may be SBS, SBR, Crumbed Rubber, Polyethylene, etc. This menu driven option provided by Sasolwax Flex provides the Customer with freedom to select the best technical solution that will also be most cost effective. For example, the ratio of Sasobit to any selected Polymer can be varied to suit a particular asphalt type and target specification.

New developments now make it possible for customers to have extruded pellet/granular form of Sasolwax Flex to meet individual customer preferences for transportation and handling.