STIKLOPORAS - porous, non-organic aggregate is processed when recycled glass is milled, mixed with blowing agents and melted down in extremely high temperature. Expanded glass granulate is unique for its granular structure, as this allows to keep air closed inside the pellet. This technology is known as the most developed technology, demonstrating the best thermo-isolating and noise cancelling features. Round grains shape, low density, low water absorption optimize the formulation and the physical properties of your product.