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WHY CENOSPHERES?Cenospheres are utilized as a High Performance Filler Material. Cenospheres can replace other fillers such as: Glass Spheres, Calcium Carbonate, Clays, Talc, and various Silicas. Cenospheres can also be utilized as an extender in many resin applications.
FILLER or "HIGH PERFORMANCE FILLER"
Why are cenospheres a High Performance Filler?
- LOW DENSITY: When density counts, cenospheres can be the answer with a density ranging from 0.50 to 0.80. Compared to most ground minerals and other resins, cenospheres are 30% - 85% lighter,
- IMPROVED FLOWABILITY: With the spherical shape of cenospheres, the flow rate will improve greatly for most applications.
- LOW RESIN DEMAND / HIGH LOADING POTENTIAL: Spheres have the lowest surface area to volume ratio achievable. With their spherical shape, cenospheres produce far less viscosity.
- LOW SHRINKAGE: Cenospheres are one of the few products in the filler industry today that can meet the requirements for low shrinkage. When used in high volume loadings, cenospheres can reduce shrinkage.
- STRENGTH: Cenospheres are three to ten times stronger than most man-made hollow glass spheres. Unlike glass spheres, cenospheres can produce a higher compressive strength due to a stronger outer shell.
- INERTNESS: Cenospheres can be utilized in solvents, organic chemicals, water, acids, or alkalis while maintaining their integrity.
- THERMAL STABILITY: Because cenospheres are formed in the boilers, they are thermally stable in temperatures exceeding 1,800 degrees F.
- COST EFFECTIVE: Cenospheres are 50% - 200% less expensive than man-made hollow glass spheres. Compared to less expensive fillers, cenospheres are cost effective based on volume loading and weight reduction.
Sphere Services, Inc., The Cenospere Company, markets premium Cenospheres under the name BIONIC BUBBLE. We also supply Standard Grade Cenospheres.
- Hollow ceramic microspheres - top of the line!
- 18-20 lbs per cubic foot - 63 microns at 50% passing.
- 0.55 - 0.60 s.p.g - .28 - .31 g/cc true density.
- 1670 p.s.i. average compression strength.
- 15 - 50% silica; 30 - 35% alumina; color is off white to light gray.
- Can replace more expensive hollow glass spheres.
Standard Grade Censospheres - SG-500, SG-300, MG-150, TG-75
- Hollow ceramic microspheres.
- 35-42 lbs per cubic foot - 140 microns at 50% passing.
- 0.70 - 0.90 s.p.g - color is gray to dark gray.
- 2000 - 8000 p.s.i. average compression strength.
- 55 - 65% silica; 30 - 40% alumina.
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White Ceramic Microspheres - VEA X-10
- 5.6 - 5.9 lbs per cubic foot - 33 microns at 50% passing.
- 93 % survival in 2000 p.s.i. pressurized chamber.
- Color is white - product is free flowing.
- 74% silica; 14% alumina - spherical shape.
- Soda lime solid glass spheres.
- 2.45 - 2.50 specific gravity.
- Bulk density - 1.5 kg per liter.
- Mohs 5.5.
- Color is clear to colorless.
- Spherical at 80% roundness.
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Disclaimer: The data and suggestions in this publication are based on information that Sphere Services, Inc. believes to be reliable. No guarantee of their accuracy is made, however, and the products discussed are sold WITHOUT WARRANTY, express or implied. INCLUDING WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, and upon condition that purchasers shall make their own tests to determine the suitability of such products for their particular purposes. Likewise, nothing contained herein shall be construed as recommending any practice or any product in violation of any patent.