GP-600 Grey
Ceramic Microspheres
A coarse, high-strength alumino-silicate ceramic filler engineered for density reduction, high build and mechanical stability in thick industrial and cementitious systems.
Lower density with higher-build efficiency
Its coarse particle distribution and rigid spherical structure support volume filling, coating thickness, controlled rheology and mechanical stability.
Coarse Distribution
Approximately 10 µm D50, 25 µm D90 and 35 µm D95 support thickness and volume filling.
Effective Density Reduction
A true density of approximately 2.3 g/cc is lower than the finer GP-series grades.
Low Oil Absorption
Approximately 23 g/100 g supports higher filler loading without excessive binder demand.
High-Build Capability
Designed for thick coatings, mortars, industrial flooring and cementitious systems.
Mechanical Stability
Rigid ceramic spheres support stress distribution, structural integrity and reduced shrinkage.
Thermal Stability
Stable above 1,000°C for demanding industrial and refractory environments.
Optimised for thick, high-volume systems
GP-600 is designed where greater film thickness, lower density, volume filling and structural integrity are primary requirements.
Why GP-600 works in lightweight, thick-section systems
The coarser particle distribution creates volume efficiently, while spherical morphology supports flow, packing and uniform stress distribution in coatings, mortars, flooring and cementing systems.
Coarse Particle Advantage
The approximately 10 µm D50 and 35 µm D95 support greater film thickness, volume filling and structural build than the finer grades.
Lower-Density Advantage
At approximately 2.3 g/cc, GP-600 has a slightly lower true density than GP-400, supporting moderate density reduction in high-volume formulations.
GP-600 compared with GP-400
GP-600 Coarse Grade
D50: approximately 10 µm
D90: approximately 25 µm
D95: approximately 35 µm
True density: approximately 2.3 g/cc
Best fit: greater build, volume filling
and lightweight cementitious systems
GP-400 Medium-Fine Grade
D50: approximately 8 µm
D90: approximately 18 µm
D95: approximately 23 µm
True density: approximately 2.4 g/cc
Best fit: balanced reinforcement, surface
quality and processing
Higher Volume Filling
The coarse distribution builds thickness efficiently in mortars, flooring and high-build coatings.
Reduced Binder Demand
Oil absorption of approximately 23 g/100 g supports higher loading and controlled viscosity.
Reduced Shrinkage
The rigid ceramic structure helps limit shrinkage, cracking and deformation in thick sections.
Pressure & Heat Stability
Particle integrity and thermal stability suit oilfield cementing and demanding industrial service.
Formulation advantage: GP-600 enables greater thickness and volume loading with a lower
true density than the finer GP-400 and GP-200 grades, while retaining
ceramic hardness and thermal stability.
Final performance depends on the resin or cement system, loading,
dispersant package, application method and curing conditions.
Confirm the optimum addition level through laboratory trials.
A coarse distribution for maximum build
The particle-size curve and spherical morphology are designed for thickness, volume filling and controlled processing.
Particle-Size Distribution
Published typical values
Bar lengths directly represent the published particle-size values on a common 35 µm scale.
GP-600 Technical Profile
Published product-page values
Particle & Density
- D50: ~10 µm
- D90: ~25 µm
- D95: ~35 µm
- True density: ~2.3 g/cc
Surface & Stability
- Oil absorption:~23 g/100g
- Surface area:~4 m²/cc
- Mohs hardness:6–7
- Thermal stability:>1,000°C
Typical values; use the current CoA for lot-specific results.
Designed for
practical processing
Introduce GP-600 under suitable agitation and optimise the loading according to viscosity, finish and mechanical requirements.
Pre-check compatibility
Confirm wetting and dispersion in the selected resin or binder system.
Add under controlled mixing
Use sufficient agitation for uniform incorporation without unnecessary dusting.
Optimise by trial
Evaluate viscosity, density, finish, adhesion and mechanical properties.
GP-600 can be used as a partial functional replacement for conventional fillers. The optimum replacement level should be established by laboratory trials.
| Parameter | Typical Value |
|---|---|
| Chemical Composition | Alumino-silicate ceramic |
| Colour | Grey |
| Particle Morphology | Spherical |
| Structure | Rigid / high-strength |
| True Density | Approximately 2.3 g/cc |
| Particle Size — D50 | Approximately 10 µm |
| Particle Size — D90 | Approximately 25 µm |
| Particle Size — D95 | Approximately 35 µm |
| Surface Area | Approximately 4 m²/cc |
| Oil Absorption | Approximately 23 g/100 g |
| Mohs Hardness | Approximately 6–7 |
| Thermal Stability | >1,000°C |
| Form | Free-flowing powder |
| CAS Number | 93924-19-7 |
| EINECS Number | 300-212-6 |
| Packaging | 25 kg HDPE-lined paper bags; bulk bags on request |
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