3M Glass Bubbles K15HSN Moisture-Resistant Low-Density Hollow Glass Microspheres for Architectural Coatings & Floating Materials

Full Name & Product Positioning

Full Product Name: 3M K15HSN Moisture-Modified Low-Density Hollow Glass Microspheres

An upgraded version of K15, it retains the extreme lightweight advantage while optimizing moisture and water resistance. It adapts to humid working conditions, outdoor coatings and floating material systems, solving the moisture failure problem of ordinary microspheres.

Core Technical Parameters

True Density: 0.15 g/cm³
Crush Strength: 600 psi
Physical Form: Ultra-fine white powder
Standard Packaging: Industrial bulk packaging
Material: Moisture-resistant hollow borosilicate glass
Core Characteristics: Ultra-light, moisture-resistant, heat insulation, dimensional stability, hydrolysis resistance

Core Advantages

1. Inherits K15's ultra-low density with outstanding lightweight and weight reduction effect;
2. Adopts HSN moisture-resistant modified technology to greatly improve water and moisture resistance, suitable for humid construction environments;
3. Strong anti-collapse and moisture-proof capacity with stable performance in outdoor and high-humidity environments;
4. Excellent dispersion for uniform mixing in coatings and floating materials with smooth finished texture;
5. Low shrinkage and low water absorption to effectively improve weather resistance and dimensional stability of products.

Main Application Fields

Core Applications: Outdoor architectural coatings, water floating materials, lightweight coatings for high-humidity environments
Compatible Fields: Moisture-proof thermal insulation coatings, outdoor sealants, lightweight waterproof composite materials
Prohibited Scenarios: High-shear plastic modification, high-pressure molding, food-contact products, high-temperature working conditions