Overview
Hollow and solid glass microspheres are precision-engineered materials made from soda-lime borosilicate or other glass formulations. Hollow microspheres contain inert gas, reducing density, while solid variants offer higher mechanical strength. Both types are valued for their spherical shape, chemical inertness, and customizable properties. These microspheres are produced through controlled thermal processes, such as flame spraying or chemical vapor deposition. Their uniformity and performance make them indispensable in high-tech industries, replacing traditional fillers like talc or calcium carbonate.
Physical and Chemical Properties
Hollow glass microspheres exhibit ultra-low density (as low as 0.1 g/cm³) and excellent thermal insulation due to their gas-filled cores. Solid microspheres, with densities up to 2.5 g/cm³, provide higher compressive strength (up to 30,000 psi) and are often used as reinforcing agents. Both types are chemically stable, resisting acids, alkalis, and solvents. Their refractive index (1.5–1.6) and dielectric properties make them suitable for optical and electronic applications. Particle sizes typically range from 10 to 200 microns, with tight distribution for consistency in end products.
Main Applications
In coatings and paints, hollow microspheres improve opacity, reduce weight, and enhance thermal insulation. Solid variants are used in reflective road markings and abrasive media. The automotive industry employs both types for lightweight composites, reducing fuel consumption. Construction benefits from their use in lightweight concrete and insulation panels. Aerospace applications include syntactic foams for buoyancy and vibration damping. Additionally, they serve as carriers in pharmaceuticals and cosmetics due to their inertness and controlled release properties.
Safety and Storage
Glass microspheres are generally non-hazardous but require careful handling to minimize dust generation. Use PPE (masks, goggles) during bulk processing to prevent respiratory or eye irritation. Avoid high-impact mixing to prevent breakage of hollow spheres. Store in sealed containers away from moisture and extreme temperatures. Bulk shipments should use palletized bags to prevent crushing. Spills can be swept up; avoid water cleanup to prevent clumping.
B2B Procurement Guide
Procurement should focus on technical specifications: particle size distribution (D50 value), density, and thermal stability. For hollow microspheres, verify crush strength (isostatic pressure resistance) and gas composition (e.g., nitrogen or CO2-filled). Request material safety data sheets (MSDS) and certificates of analysis (CoA). Reliable suppliers often provide custom grading and bulk packaging options. Prices vary by volume; negotiate discounts for orders above 1 ton. Sample testing is recommended to ensure compatibility with your application.
Related Manufacturers
- 主营：硅灰石粉、矿粉、硅灰、玻璃微珠、长石粉、高岭土、玻璃粉、膨润土、玻璃鳞片、萤石粉
- 主营：碳酸钙、高岭土、滑石粉、玻璃微珠、负离子、金刚砂、贝壳粉
- 主营：玻璃鳞片、高岭土、玻璃粉、玻璃微珠、膨润土、滑石粉、铝矾土、硅灰、萤石粉、沉淀硫酸钡、重钙、轻钙、硅藻土、珍珠岩、重晶石粉、S95矿粉、透明粉、煅烧高岭土、玻璃砂、云母粉、木炭、硅酸铝粉、长石粉、火山石、贝壳粉
- 主营：轻质碳酸钙、重质碳酸钙、硅灰、膨润土、高岭土、滑石粉、珍珠岩、凹凸棒土、贝壳粉、硅藻土、氧化钙、氢氧化钙、氧化钙颗粒、木质纤维、沸石粉、沸石颗粒、橡胶粉、蛭石、机制木炭、石英砂、白云石、白云石粉
- 主营：重钙粉、白云石、石英砂、玻璃微珠、金刚砂、高岭土、陶土粉、重晶石粉、石英粉、膨润土、橡胶粉、铝矾土、麦饭石粉、蛭石、滑石粉、轻质碳酸钙、凹凸棒土、长石粉、粘土球、白云石粉、硅微粉、珍珠岩粉、偏高岭土粉、氧化钙、氢氧化钙
- 主营：碳酸钙、石英砂、金刚砂、滑石粉、矿粉、微硅粉、染色砂、陶瓷球、高岭土、鹅卵石
- 主营：普通石英砂、金刚砂、鹅卵石、玻璃微珠、重钙粉、云母、玻璃珠
- 主营：保温材料、工业造纸用轻钙、石英砂、轻钙重钙、贝壳粉、金刚砂、耐磨地坪材料、高岭土、碳酸钙、滑石粉、硅藻土、彩砂、玻璃鳞片、硅酸铝纤维、膨润土、橡胶粉、珍珠岩、竹炭、沸石粉、白云石粉、雪花白、氧化钙颗粒
- 主营：反光玻璃砂、道路反光标线、道路反光、反光玻璃微珠、彩色玻璃微珠、玻璃微珠、道路玻璃微珠、空心玻璃微珠、高强度玻璃微珠、鱼缸水族、染色彩砂、折射玻璃微、彩色玻璃砂
- 主营：棕刚玉 白刚玉、氧化铁颜料、云母、玻璃微珠、复合岩片、金刚砂耐磨地坪材料、鹅卵石雨花石、金刚砂、夜光石、免洗树脂水洗石开通即、棕刚玉砂 微粉、硫化铁、煅烧彩砂、石英砂、硅微粉 石英粉、碳酸钙、海泡石纤维、玻璃微粉、树脂砂 悬浮砂、反射隔热粉、碳粉、负氧离子液
- 主营：锂辉石、白刚玉、黑碳化硅、空心玻璃微珠、绿碳化硅、玻璃轻石、玻璃纤维、玄武岩纤维、氧化锆球
- 主营：麦饭石粉、滑石粉、沸石粉、氧化钙、膨润土、白云石粉、橡胶粉、石英粉、硅微粉、碳酸钙、石墨、硅藻土、抗菌粉、氢氧化钙、消石灰、陶土、活性白土、金刚砂、木粉、磁粉、海泡石粉、二氧化硅、高岭土、负离子粉
- 主营：海泡石粉、海泡石纤维、凹凸棒土、空心玻璃微珠、远红外陶瓷粉、珍珠岩、铝矾土粉、红土黄土粉、白黄色粘土粉、熟石灰、氧化钙、铁粉铁砂、S95矿粉、粘土球、氧化铁颜料、轻质碳酸钙、硅藻土、白炭黑、膨润土、火山石粉、伊利石粉、叶蜡石粉
- 主营：白炭黑、白刚玉、漂珠、空心玻璃微珠、石油焦、石英砂、陶粒球、电气石、麦饭石球、金刚砂、碳化硅、石墨、陶瓷颗粒、氧化镁、钛白粉、透明粉、氧化铁、碳酸钙、膨润土、高岭土、营养土、玄武岩纤维、玻璃纤维、锂辉石
- 主营：滑石粉、白陶土、碳酸钙、玻璃微珠、金刚砂、石英砂、白云石砂、耐火材料、地坪材料、彩色地坪料、高尔夫球场、耐磨地坪硬化剂