3M Glass Bubbles S38HS High-Strength Medium-Density Hollow Glass Microspheres for Marine Composites, Epoxy Potting & Structural Foam

Full Name & Product Positioning Product Full Name: 3M S38HS High-Strength Medium-Density Pressure-Resistant Hollow Glass Microspheres Developed for high-pressure casting, epoxy potting, and marine composite materials, balancing density with compressive stability, suitable for high-load industrial composite systems. Core Technical Parameters ·   True Density: 0.38 g/cm³ ·   Compressive Strength: 8000 psi ·   Physical Form: White high-purity powder ·   Standard Packaging: Industrial bulk packaging ·   Material: Ultra-high-strength hollow borosilicate glass ·   Core Characteristics: High compressive strength, high-pressure resistant, structurally stable, suitable for heavy-load composites Key Advantages ·   Good compressive performance, can withstand high-pressure potting and compression molding conditions, maintaining a high microsphere integrity rate. ·   Medium-density ratio achieves a good balance between product weight reduction and mechanical strength. ·   Good waterproof, anti-corrosion, and weather resistance performance, suitable for harsh marine outdoor conditions. ·   Good compatibility with epoxy systems, with fewer voids and delamination in potting products and uniform performance. ·   Resistant to aging and deformation during long-term use, can extend the service life of industrial products. Main Application Areas Core Applications: Marine composite materials, epoxy high-pressure potting, high-strength structural foams Suitable Areas: Outdoor heavy-load industrial coatings, high-pressure molded lightweight structural parts, anti-corrosion composites Prohibited Scenarios: Ultra-high-shear injection molding processing, food-contact products, civilian low-load lightweight coatings