3M™ Glass Bubbles K25
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Details
Highlights
- Density reduction
- Higher filler loading feasible and lower VOC for paints and coatings
- Chemical stability and inertness
- Temperature resistance
- Thermal conductivity reduction
3M™ Glass Bubbles K25 are hollow microspheres made of soda-lime borosilicate glass with a true density of 0.25 g/cm³ and an isostatic crush strength of 750 psi / 52 bar.
This general purpose Glass Bubbles grade was designed for use in a variety of applications such as paints and coating, wall plasters, and polyurethane and epoxy systems for tooling boards. Furthermore, it is suggested to be used in intermediate depth (e.g. up to 5,000 feet / 1524 meters of sea water) buoyancy applications, such as drill riser buoyancy models.
Specifications
| Appearance (Unaided Eye) | White Powder |
| Composition | Soda-lime Borosilicate Glass |
| Crush Strength (Imperial) | 750 psi (80% Minimum Fractional Survival) |
| Crush Strength (Metric) | 5.17 MPa (80% Minimum Fractional Survival) |
| Industries | Paints and Coatings, Insulation and Buoyancy, Construction, Transportation, Rubber and Plastic |
| Net Weight (Imperial) | 80 lb., 88.2 lb., 352.8 lb., 385.809 lb., 837.9 lb. |
| Net Weight (Metric) | 36 kg, 40 kg, 160 kg, 175 kg, 380 kg |
| Shape | Thin-walled Hollow Spheres |
| Typical Density | 0.25 g/cc |
| Typical Median Particle Diameter | 55 µm |
Resources
Safety Data Sheets
Document Number: MSDS_1048529_GB_EN
(PDF)
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