Lightweight Alumina Hollow Sphere Filler

• Application: Refractory, Construction, Metallurgy, Ceramic, Casting
• Product Name: Alumina Bubble
• Product Appearance: Irregular Sphere
• Product Color: White
• Product Content: 99%The Above
• Transport Package: 25kg
• Specification: 0.1-0.2mm 0.2-0.5mm 0.2-1mm 1-2mm 2-3mm 3-5mm
• Trademark: jieyang
• Origin: China
• HS Code: 28181010
• Production Capacity: 80000

Product Description

product name	alumina bubble			Fire resistance temperature ºC	1800
bulk density	0.5-1.2g/cm³			AI2O3	≥99.5%
Specification mm	0.1-0.2	0.2-0.5	0.2-1	1-2	2-3	3-5
bulk density g/cm³	1.2	0.95	0.85	0.75	0.65	0.5
Product Features	High temperature resistance, lightweight, high mechanical strength, and high purity, low thermal conductivity
application	High temperature kilns, petrochemical industry, metallurgical industry, lightweight refractory bricks, grinding wheel drilling, etc

High temperature insulation filler: Aluminum oxide hollow spheres are widely used as high-temperature insulation fillers due to their excellent high-temperature resistance and insulation properties. This material can effectively reduce heat transfer and improve the thermal efficiency of equipment.
High temperature refractory concrete lightweight aggregate: When manufacturing high-temperature refractory concrete, alumina hollow spheres are used as lightweight aggregates, which can reduce the density of concrete while maintaining its high-temperature refractory performance.
High temperature castables: Aluminum oxide hollow spheres are also an important component of high-temperature castables, which can improve the high-temperature resistance and insulation performance of castables.