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GP-600 Grey Ceramic Microspheres are coarse-grade, high-strength alumino-silicate ceramic microspheres engineered for construction formulations where thickness build, volume filling, density control, and dimensional stability are critical.
Compared to fine and medium grades, GP-600 provides higher build efficiency and reduced shrinkage stress in thicker cementitious sections, making it suitable for repair mortars, non-shrink grouts, industrial toppings, and lightweight cementitious systems.
GP-600 acts as a rigid ceramic micro-aggregate that supports load distribution and wear resistance, while helping reduce the overall weight of the composite matrix in selected construction applications.
Ceramic microspheres, Cenospheres, Solid alumino-silicate microspheres
Naturally derived hollow alumino-silicate ceramic spheres (lightweight inorganic filler)
Not applicable (mineral mixture)
Light to dark grey color powder
Spherical
2.25-2.40 gm/cc
12141-46-7
Not single-substance (varies by source / classification)
2621.90.00
Not regulated (non-hazardous inorganic powder)
Lightweight repair mortars
Lightweight renders and patching compounds
Void filling and volume build mixes
Non-shrink cementitious grouts
Base plate and machine foundation grouts
Gap filling and anchoring applications requiring thickness build
Thick screeds and industrial toppings
Epoxy-cement and cementitious flooring systems
Heavy-duty floors where weight reduction is beneficial
Medium to thick overlays
Polymer-modified toppings
Wear-resistant surface build-up layers
Protective cementitious coatings
Levelling and resurfacing compounds
Barrier coats where thickness build is important
| Property | Typical Value |
|---|---|
| Chemical Composition | Alumino-Silicate Ceramic |
| Color | Grey |
| Particle Morphology | Spherical |
| Structure | Dense / High-Strength |
| Median Particle Size (D50) | Fine grade |
| True Density | ~2.6 – 2.8 g/cc |
| Bulk Density | ~1.3 – 1.6 g/cc |
| Crush Strength | High (industrial grade) |
| Mohs Hardness | ~6 – 7 |
| pH (slurry) | Neutral to mildly alkaline |
| Thermal Stability | > 1,000 °C |
| Form | Free-flowing powder |
Coarse grade supports rapid thickness build and volume filling with stable workability.
Helps reduce overall density versus conventional mineral aggregates in selected mixes.
Rigid ceramic micro-aggregate reduces shrinkage stress in thicker cementitious applications.
Ceramic hardness contributes to longer service life in floors, toppings, and high-traffic zones.
Supports compressive strength and structural stability in grouts and repair systems.
Alumino-silicate ceramic chemistry resists alkalis, moisture exposure, and construction chemicals.
GP-200 Grey Ceramic Microspheres are inorganic, non-toxic, and chemically inert under normal construction material handling conditions.
Safety goggles
Gloves
Dust mask or respirator in dusty environments
Refer to the Safety Data Sheet (SDS) for complete safety information.
Proper storage ensures product flowability and consistent performance.
25 kg HDPE-lined paper bags
1 ton Jumbo / bulk bags