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.

Polymer Blending: PGXpand Mixing Guidelines

Sripath’s PGXpand® is a unique, highly bitumen-compatible, specially engineered polymer. Used for bitumen modification in both the roofing and paving industries, its effectiveness and cost-saving benefits have been tested and proven since 2015. Incorporating PGXpand into bitumen is an endothermic process, meaning the mixture needs to be heated during the entire blending process to maintain the temperature. Proper [...]

Why Specially Engineered Polymers Are the Right Choice

Polymer Modified Membranes have a long history in the roofing and building materials industries. In addition to improving high temperature properties, they provide superior crack resistance, particularly in cold conditions, where they have a high strain capability to cope with thermal shrinkage stresses. Additionally, they offer superior fatigue resistance and durability over standard bitumen. More recently, polymers have [...]

PGXpand Vetted & Evaluated by Royal Melbourne Institute of Technology

This text originally was released through Roads & Infrastructure here. Sripath PGXpand®, a Specially-Engineered Innovative Polymer, Vetted & Evaluated by Royal Melbourne Institute of Technology Melbourne, Victoria – March 10, 2022 Sripath Asia-Pac Pty. Ltd. located in Melbourne, Victoria, an affiliate of Sripath Technologies LLC located in New Jersey USA, announced that the Royal Melbourne Institute of Technology (RMIT) [...]

World Highways Highlights Sripath’s PGXpand

On March 7th, 2022, World Highways highlighted Sripath's product, PGXpand. The following is the article that originally appeared here. The content is downloadable as a PDF here. PGXpand®: A Specially-Engineered Innovative Polymer Sripath Technologies LLC develops, manufactures and markets a wide range of innovative additives, such as, rejuvenators, oils, and polymers to enhance the performance of bitumen [...]