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3M D32/4500 Glass Bubbles

Category Ceramic , Glass
Manufacturer 3M
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
3M™ Glass Bubbles are engineered hollow glass microspheres that are alternatives to conventional fillers and additives such as silicas, calcium carbonate, talc, clay, etc., for many demanding applications. These low-density particles are used in a wide range of industries to reduce part weight, lower costs and enhance product properties. The spherical shape of 3M glass bubbles offers a number of important benefits, including: higher filler loading, lower viscosity/improved flow, and reduced shrinkage and warpage. It also helps the 3M glass bubbles blend readily into compounds, and makes them adaptable to a variety of production processes, including spraying, casting and molding. In addition, they offer greater survivability under demanding processing conditions, such as injection molding, and also produce stable voids, which results in low thermal conductivity and a low dielectric constant. The chemically stable soda-lime-borosilicate glass composition of 3M glass bubbles provides excellent water resistance, to create more stable emulsions. They are also non-combustible and non-porous, so they do not absorb resin. And, their low alkalinity gives 3M glass bubbles compatibility with most resins, stable viscosity and long shelf life.Information provided by 3M
Physical Properties Metric English Comments
Density 0.300 - 0.340 g/cc
0.0108 - 0.0123 lb/in³
True, 3M QCM 14.24.6
0.320 g/cc
0.0116 lb/in³
Typical, 3M QCM 14.24.6
Volatiles 0.50 %
0.50 %
Particle Size 20 µm
20 µm
10th%
40 µm
40 µm
50th%
65 µm
65 µm
90th%
80 µm
80 µm
95th%
pH 9.1 - 9.9
9.1 - 9.9
Mechanical Properties Metric English Comments
Compressive Strength 31.0 MPa
4500 psi
Thermal Properties Metric English Comments
Thermal Conductivity 0.0600 - 0.160 W/m-K
0.416 - 1.11 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 600 °C
1110 °F
Electrical Properties Metric English Comments
Dielectric Constant 1.3 - 1.5

@Frequency 1.00e+8 Hz
1.3 - 1.5

@Frequency 1.00e+8 Hz
Descriptive Properties Value Comments
Alkalinity <0.3 milliequivalents/gram
Appearance White
unaided eye
Chemical Resistance soda-lime-borosilicate glass
Oil Absorption 31-36g oil/100 cc
ASTM D1483
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