PGXpand Archives

PMB mixes have been popular for decades and are designed to maintain the integrity of the roadway while enhancing functional performance characteristics. Most virgin bitumen lacks the complete properties needed in quality to build high-performing roadways. Adding polymers to create a PMB can help strengthen and toughen the roadway surface. PGXpand®, a bitumen-friendly polymer additive, is uniquely designed to allow polymer modified bitumen (PMB) producers to boost the high temperature performance of the binder while maintaining low temperature properties. It minimizes SBS content, improves viscosity, supports higher filler loading, and provides better stability.

Asphalt Additives for Roofing Compounds

For professionals formulating roofing compounds, creating a high-performing, durable, and cost-effective product is a constant challenge. Roofing systems demand materials that can withstand extreme temperatures and resist weathering and water damage. Bitumen membranes, a cornerstone of these systems, rely heavily on asphalt additives to meet these rigorous requirements. Among the most versatile tools available to formulators are PGXpand®, a bitumen friendly polymeric additive designed to optimize performance and enhance [...]

PGXpand® and Asphalt Performance in Extreme Climates

As infrastructure owners and contractors face increasingly volatile weather patterns, the demand for a climate-resilient asphalt binder has never been greater. From freeze-thaw cycles in northern regions to sustained high temperatures in the south and southwest, asphalt pavements are under constant stress. Performance is no longer defined solely by average conditions but rather a consideration of performance at extremes. Polymer modified bitumen (PMB) has long been [...]

PGXpand®: The Road to Better Bitumen Performance

Innovation is often the result of years of asking the right questions, testing assumptions, and refining ideas until chemistry and application finally align. As Sripath Technologies celebrates 20 years of innovation, PGXpand® stands as a clear example of this philosophy in action. PGXpand was not developed to simply replicate what existing polymers already did for bitumen. Instead, its development began with a more fundamental challenge: [...]

Sripath Asphalt Additives and Proven Durability in Roadway and Roofing Applications

In modern asphalt mix design, the use of high-quality asphalt additives has become essential to improve performance, sustainability, and long-term durability. Whether the goal is to incorporate higher amounts of Reclaimed Asphalt Pavement (RAP), reduce production and compaction temperatures, or optimize polymer-modified bitumen (PMB) blends, additives can help producers achieve these objectives without compromising pavement life. Sripath has developed a suite of innovative additives including ReLIXER®, PGXpand®, [...]