3M™ Glass Bubbles K1

3M™ Glass Bubbles K1 are engineered borosilicate microspheres designed for integration into colorants and stucco formulations. Their low-alkali composition ensures compatibility with cement-based systems, while their exceptional volume-to-weight ratio of approximately 8 liters per kilogram delivers significant material efficiency. At a dosage of 125 grams per liter of mortar, these bubbles effectively halve the specific gravity of the finished product, reducing overall weight without compromising structural integrity. Beyond their lightweight properties, K1 Glass Bubbles function as a superior thermal and temperature insulator, making them ideal for applications requiring both performance and economy.