3M™ Glass Bubbles
K-15 HSN
High-strength, low-density soda-lime borosilicate glass bubbles engineered to reduce formulation density while improving survival through processing.
More volume. Less mass.
K15HSN combines an ultra-low true density with twice the listed isostatic pressure of standard K15, supporting lightweight industrial formulations that must pass through more demanding processing steps.
PVC TUBING
Potential density reduction in flexible and rigid PVC compounds, subject to formulation and processing validation.
PIPE COATINGS
Lightweight volume extension and improved thermal-insulation potential in suitable protective coating systems.
CONSTRUCTION
Lower-density compounds, plasters, sealants and repair materials where stable hollow volume is valued.
PAINTS & COATINGS
Reduced dry-film density with spherical, non-porous filler geometry and controlled particle size.
BUILT FOR LIGHTWEIGHT SYSTEMS
Representative application imagery. Final suitability depends on resin chemistry, processing shear, pressure, loading and end-use requirements.
Flexible PVC tubing production
Potential use in PVC tubing and polymer compounds after process-survival trials.
Protective coating being applied to industrial pipe
Potential use in lightweight protective and insulation-oriented pipe coatings.
Density and strength
Charts reproduce values from the supplied K15HSN technical data sheet and compare its pressure level with standard K15 catalogue data.
True density
Isostatic pressure at stated survival
Protect flow and integrity
Keep unopened cartons dry and temperature-controlled. Avoid high humidity, condensation and unnecessary dust generation.
Store dry
Reseal opened bags immediately and use first-in/first-out inventory practices.
Control dust
Use local exhaust or dust collection and transfer through closed systems where practical.
Use PPE
Use safety glasses with side shields and consult the SDS for exposure controls and respiratory protection.
TYPICAL PROPERTIES
Values below are reproduced from the supplied technical data sheet and are not for specification purposes.
| Property | 3M™ Glass Bubbles K15HSN |
|---|---|
| Shape | Hollow spheres with thin walls |
| Composition | Soda-lime borosilicate glass |
| Colour / appearance | Off-white, powdery |
| Isostatic pressure at 80% survival | 600 psi |
| True density | 0.15 g/cc |
| Average packing factor | 63% |
| pH at 5 wt% loading in water | 9.5 |
| D50 | 40 µm |
| D95 | 80 µm |
| Softening point | 1112°F / 600°C |
| Typical volatile content by weight | 0.3% |
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