PORTAFILL G25 is a high quality amorphous calcium-aluminium silicate mineral filler with consistent chemistry and particle size distribution. PORTAFILL G25 contains no crystalline silica. It is produced from recycled glass fibers through milling and classification processes, making it a more sustainable raw material option. PORTAFILL G25 exhibits transparency, chemical inertness and abrasive resistance properties well-suited for formulations. Its dimensional stability and electrical insulation attributes enhance performance of end products. PORTAFILL G25 can contribute to a circular economy and its standardized quality is ensured through ISO 9001 processes. PORTAFILL G25 is an optimal mineral filler choice for applications requiring its technical advantages.