Imagine lighter-weight vehicles that can travel further on less fuel. More efficient ways to drill for oil and insulate deep-sea pipelines. Paint additives that helps keep homes cooler on hot, sunny days. In all these ways and more, 3M Glass Bubbles are helping a wide range of industrial sectors solve their design challenges and reach new levels of performance and productivity.
3M Glass Bubbles are high-strength, low-density hollow glass microspheres made from soda-lime borosilicate glass. They are nonporous, chemically stable and provide excellent water and oil resistance. Strong enough to survive processing, they can be incorporated into a wide range of polymers for density reduction. Their spherical shape offers a variety of advantages over irregularly shaped additives or fillers as it has the least surface area per volume of any shape. That allows 3M Glass Bubbles to reduce resin demand in a variety of applications—for lower raw material costs.
When used as fillers, 3M Glass Bubbles reduce weight in applications from plastics, thermosets and sheet- or bulk-moulded composites to structural foams and elastomers. All without requiring significant material or process changes, and without compromising the mechanical integrity of the finished product. The resulting lighter weight parts not only have greater consumer appeal, but can also contribute to environmental sustainability through better fuel economy.
The benefits of lightweighting have an obvious impact in the transportation sector, but customers across many industries can benefit from the lower cost of shipping lightweight parts. In addition, some plastics made with 3M Glass Bubbles may be recyclable, and can be re-ground as many as five times with minimal change in properties. The 3M Glass Bubble fraction of these plastics raises few, if any, issues during disposal, because they’re made from an inert glass.
3M Glass Bubbles go far beyond automotive lightweighting materials: the inherent properties of these hollow glass microspheres provide a number of unique performance and processing advantages including improved flow, higher volume loading, high dimensional stability, faster cooling times, solar reflectivity, thermal resistance, buoyancy and more.
Contact us for more information, including formulation assistance or questions about a specific application.