
Bitumen softeners are designed to lower bitumen stiffness to allow for greater flexibility and cracking resistance. This can help stabilize mixes with varying bitumen quality and maintain the integrity of the roadway or roofing surface. ReNUBIT® is a proprietary petroleum-based bitumen softener designed to improve polymer compatibility, solvency, and stability. It is effective with a wide range of bitumen found around the world in the paving and roofing industries. ReNUBIT produces softer grades of bitumen that support high polymer and/or crumb rubber levels while improving low temperature properties, fracture toughness, and fatigue resistance.
The Role of Bitumen Softeners in Roofing Compounds
Roofing materials must balance durability, flexibility, adhesion, and processability to perform reliably across changing temperatures and weather conditions. Bitumen remains a key component in roofing products because of its waterproofing properties and versatility. However, the characteristics of the base bitumen and the frequently varying quality of incoming bitumen can make formulation and processing challenging. Asphalt additives known as bitumen softeners can help formulators address some of these challenges. Softeners can make it easier to [...]
