- Density reduction
- Higher filler loading feasible and lower VOC for paints and coatings
- Chemical stability and inertness
- Temperature resistance
3M™ Glass Bubbles K37 are hollow microspheres made of soda-lime borosilicate glass with a true density of 0.37 g/cm³ and an isostatic crush strength of 3000 psi / 210 bar.
This general purpose Glass Bubbles grade is used for coatings, adhesives, mastics, sealants, and thermoset resin systems.
- Density reduction
- Higher filler loading feasible and lower VOC for paints and coatings
- Chemical stability and inertness
- Temperature resistance
- Thermal conductivity reduction
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Attribute Name
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Value
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|---|---|
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Capabilities
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Chemical Resistance, Increased Production Throughput, Lightweighting, Temperature Resistance
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Color (unaided eye)
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White, powdery
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Composition
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Soda-lime-borosilicate Glass
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Density Range (g/cm3)
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0.30 - 0.39
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Industries
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Construction, Mining, Paints and Coatings
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Net Weight (Metric)
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50 kg
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Particle Size Range (D50 Micron)
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40 - 49, 40 - 49, 40 - 49
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Strength (MPa)
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20.6
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