We'll dedicate ourselves to offering our esteemed customers together with the most enthusiastically thoughtful solutions for Professional China Ceramic Hollow Microspheres Low Density with High Alumina and Silica, Please don't hesitate to contact us if you are interested in our products. We firmly believe our products will make you satisfied. We'll dedicate ourselves to offering our esteemed customers together with the most enthusiastically thoughtful solutions for China High Alumina Cenospheres and Refractory Cenosphere, Each product is carefully made, it will make you satisfied. Our products in the production process have got strictly monitored, because it is only to provide you the best quality, we will feel confident. High production costs but low prices for our long-term cooperation. You can have a variety choices and the value of all types are same reliable. If you have any question, do not hesitate to ask us. Cenosphere(Expanded Mineral Materials Containing Alumina and Silica) is a light weight, inert, hollow sphere made largely of silica and alumina and filled with air or inert gas., typically produced as a byproduct of coal  combustion at thermal power plants. The color varies from gray to almost white and their den sity is about 0.6–0.9 g/cm³, all these property give it a widely application for insulation,refractory,oil drilling,coating,construction use. Cenospheres In Heat-Insulating Refractory Concretes Microspheres, due to their fire resistance and high heat-insulating properties, are used in the production of thermal insulation materials. The high temperature of microsphere shell softening allows, with the appropriate selection of the binder, creating refractory coating and insulating materials for industrial equipment. Cenospheres Color: gray Particle size: Based on customer requirements Shape: hollow microspheres Material: glass, nontoxic, odorless, non corrosive Silica: 50% ~ 65% Alumina: 27% ~ 35% Fe2o3：2%~3% MgO: 0.8% ~ 1.2% Silica: 0.1% ~ 0.2% Cao: 0.2% ~ 0.4% MgO: 0.8% ~ 1.2% Potash: 0.5% ~ 1.1% Sodium oxide: 0.3% ~ 0.9% Fire resistance: ≥1610 ℃ Floating Rate:≥95% Moisture content:≤1% Our usually packing way： 25kg/pp bag or 500~600kg/ bag Usage : 1.Cementing: Oil Drilling Mud & Chemcials,Light Cement Boards,Other Cementious Mixes. 2.Plastics: All types of Moulding,Nylon,Low Density Poluethylene and Polypropylene. 3.Construction: Speciality Cements and Mortars,Roofing Materials.Acoustic Panels,Coatings. 4.Automobiles: Fabrication of composite polymeric putties. 5.Ceramics: Refratories,Tiles,Fire Bricks. 6.Paints and Coating: ink,bond,vehicle putty, insulating, antiseptic, fireproof paints. 7.Space or Military: explosives,invisible paints for planes,ships and even soldiers,heat and compression insulating compounds,deep-water submarine. We'll dedicate ourselves to offering our esteemed customers together with the most enthusiastically thoughtful solutions for Professional China Ceramic Hollow Microspheres Low Density with High Alumina and Silica, Please don't hesitate to contact us if you are interested in our products. We firmly believe our products will make you satisfied. Professional China China High Alumina Cenospheres and Refractory Cenosphere, Each product is carefully made, and it will make you satisfied. Our products in the production process have been strictly monitored because it is only to provide you with the best quality, we will feel confident. High production costs but low prices for our long-term cooperation. You can have a variety of choices and the values of all types are the same reliable. If you have any questions, do not hesitate to ask us.