Glass bubble, made of Soda Lime Borosilicate Glass, are hollow spheres which grain size is 10-250microns, wall-thickness 1-2 microns, filled with inert air or gas.
glass bubble are produced at the high temperature of 700-800 degrees Celsius through complicated chemical and physical transformation. glass bubbles are white and the specific gravity of them is about 0.25-0.60g/cc.
Hollow glass microshpere have much merit, such as lightweight, great buoyancy, hard, rigid, waterproof, innoxious, insulative, low heat conductivity, higher mechanical strength and excellent chemical stability,etc. glass bubble surface was treated by the special way and the products are dispersed very easily in organic materials such as resin.

glass bubble are widely used in composite materials such as FRP, man made marble and man made agate. glass bubble can decrease the weight of the composite materials and the composite materials have excellent performance of sound insulation and heat preservation, and they can improve the mechanical performance of the composite materials such as strengthened rigidity, enhanced anti-impact property, excellent anti-breaking property and re-processing function.

Features of Lightweight Hollow Glass Microspheres for Paint Additives
– Light specific gravity and large volume
– High disperion and good fluidity
– Heat insulation, sound insulation
– Low rate of absorbing oil

Application of Lightweight Hollow Glass Microspheres for Paint Additives
PLASTICS: BMC, SMC, Injection Molding, Extruding, PVC flooring, Film, Nylon, High Density Polyethylene, Low Density Polyethylene, Polypropylene
CERAMICS: Refractory, Tile, Firebricks, Aluminum Cement, Insulating Materials, Coatings.
ROCK OIL: Oil well construction, Heat preservation of oil pies, Materials used again erosion
SPACE: Aerospace coatings, Aerospace composites
AUTOMOTIVE: Composites, Undercoating, Engine parts, Brake pads, Trim molding, Body fillers, Plastics, Sound proofing materials
CONSTRUCTION: Specialty cements, Mortars, Grouts, Stucco, Roofing materials, Acoustical panels.