3M™ Glass Bubbles S32HS are hollow glass microspheres engineered from water-resistant, chemically-stable soda-lime borosilicate glass. These performance-enhancing polymer additives are used to create high-strength, low-density composite parts and syntactic foams for use in the automotive, marine, heavy truck, aerospace, oil and gas industries.
Engineered to Provide High Strength and Low Weight for Demanding Applications
3M™ Glass Bubbles S32HS are hollow glass microspheres used to reduce density while maintaining high strength. They are engineered from water-resistant and chemically-stable soda-lime borosilicate glass to create lighter parts, improve thermal insulation and provide other functional benefits in demanding applications. Their spherical shape and moderate hardness help reduce wear in production equipment. In many applications, 3M™ Glass Bubbles are a superior alternative to conventional fillers and additives such as silica, calcium carbonate, talc and clay.
Glass Bubbles in Automotive and Transportation Manufacturing
3M™ Glass Bubbles S32HS are performance enhancing polymer additives used to create ultra-lightweight parts with Class A paintable finishes in the automotive, marine, heavy truck and aerospace industries. When used as a filler in sheet or bulk molded composites, they can help reduce final part weight by up to 40 percent without compromising mechanical integrity.
Benefits of Glass Bubbles
3M™ Glass Bubbles S32HS offer a number of competitive advantages over traditional polymer fillers like silica, calcium carbonate, talc or clay. By replacing conventional fillers, these hollow glass microspheres can help reduce the weight of molded parts by up to 40 percent. With a density of 0.32 g/cc and an isostatic crush strength of 6,000 psi, the S32HS glass bubbles can help reduce composite density below 1.0 g/cc without sacrificing mechanical integrity or surface aesthetics. Furthermore, the unique spherical shape of these glass bubbles allows for higher volume loading while maintaining workable viscosity and contributes to the production of Class A