China Abrasives Import&export Corp.

henan, China

Hollow Microsphere (Hollow Glass Microsphere) is small hollow round ball form powder. Grain size is between 1-500 microns, the density is in the 0.1-0.3 g/cm3.Having light weight and big volume, low transmit heat coefficient , high anti- press strength , and having good dispersion, mobility, the stability. Moreover also having good insulativity, self-lubricating, soundproof, don't absorb water, fire-proof, corrosion resistance, radiation protection, non-toxicity, etc. excellent function. This product could direct fill in many resin product of thermoset, thermoplastic. It could reduce product’s weight, cut down producing cost, eliminate product’s internal stress, etc. And also could substitute some of bronze powder, molybdenum disulfide and White Carbon etc. some expensively fill material. Hollow Glass Microsphere is component of inorganic material. The chemistry composition include:SiO2, Al2O3, ZrO.2., MgO, Na2Si2O5 etc. Its grain size from 10 to 500 microns, wall thickness only have a few micron. Glass Microsphere technique function and specification form: Type ST10 SP18 SE10 SE12 Grain size (um) 10-125 10-75 10-150 10-125 Density (g/cm3) 0.10-0.11 0.18-0.19 0.10-0.11 0.12-0.13 Hydrostatic pressure MPa 3-6 MPa Flotation content % ≥95 Water content % ≤0.5 Oil absorbency 0.4-0.5 PH value 9.5-12.5 7.5-9.5 Complexion White, hollow, hermetical glass microsphere Packing: Plastic woven bag Note: we also could produce other size according to customer’s inquiry.

1. MAIN INTENDED USE It is a superior quality soda lime glass bead for applications requiring a high polish or minumum surface alteration.Used in aviation industry, the polishing of stainless steel, bronze etc., popular for the refurbishment of automotive and engineering components, and for road marking. 2. CHEMICAL ANALYSIS Compound/element Chemical formula Typical content Silicon Dioxide SiO2 72.10% Sodium Oxide Na2O 14.80% Calcium Oxide CaO 6.8% Magnesium Oxide MgO 3.8% Aluminium Oxide Al2O3 1.76% 2.PHYSICAL PROPERTIES A.Bulk density Untamped 1.5 g/cm3 B.Shape Spherical C.Colour Colourless D.Specific gravity 2.55 g/cm3 E.Hardness 635 kg/mm2 min 3. SIZE RANGE AVAILABLE In accordance with BS6088, 1981, Grade A, Grade B, Grade C-blended sizes in microns: 840/590, 590/420, 420/250, 297/177, 250/149, 210/105, 149/74, 105/53, 88/44 and 44/0.Glass beads are 80% within specified size ranges, with 70% spherical characteristic and broken or angular particles under 3%, we also could produce according to the specifications of the buyer 4. Packing Packed in 25kg seaworthy plastic sacks, or in paper bags, shrink wrapped & palletized. Or in 1mt Big bags. Any specific request on the packing can be considered.

1. main intended use a cenosphere is a lightweight, inert, hollow sphere filled with inert air or gas, typically produced as a byproduct of coal combustion at thermal power plants. the color of cenospheres varies from gray to almost white and their density is about 0.4–0.9 g/cm³, which gives them a great buoyancy 2. chemical analysis chemical formula typical content sio2 55-65% al2o3 25-35% fe2o3 1-3% na2o 0.4-0.7% cao 0.7-1.3% mgo 0.5-0.7% tio2 1-1.4% k2o 0.9-1.5% 2.physical properties a.bulk density 0.3-0.4 g/cm3 b. average true density 0.6-0.8 g/cm3 c. colour off white/gray d. sinker 5% max e.moisture 2% max f. melting point 1610-1650℃ 3. size range 1-500 microns or 10-400 microns or 20-300micron or 0-100micron or produce according to the specifications of the buyer 4. packing packed in small seaworthy plastic sacks, shrink wrapped & palletized. or in big bags. any specific request on the packing can be considered.