GP-800
Grey
Ceramic Microspheres
Extra-coarse, ultra-high-strength alumino-silicate ceramic microspheres engineered for maximum volume build, density reduction and structural reinforcement under extreme mechanical stress, high pressure and high temperature.
Maximum build for extreme-duty systems
The largest particle distribution and lowest true density in the GP Series support exceptional load-bearing capacity, pressure resistance and efficient volume extension.
Extra-Coarse Distribution
Approximately 15 µm D50, 35 µm D90 and 50 µm D95 provide maximum thickness build and gap filling.
Maximum Density Reduction
Approximately 2.2 g/cc is the lowest true density in the GP Series.
Low Oil Absorption
Approximately 20 g/100 g supports high filler loading with reduced binder demand.
Exceptional Compressive Strength
The rigid, ultra-high-strength structure withstands extreme pressure and mechanical stress.
Dimensional Stability
Helps minimise shrinkage, cracking and deformation in heavy, thick sections.
Thermal & Chemical Robustness
Stable above 1,000°C and suited to aggressive oilfield and industrial environments.
Built for the heaviest industrial demands
GP-800 is the definitive GP grade where maximum volume build, extreme pressure resistance and structural reinforcement are primary requirements.
Why GP-800 performs under extreme pressure
Its extra-coarse spherical geometry and rigid ceramic shell combine maximum volume build with exceptional load-bearing capacity, dimensional stability and pressure resistance.
Extra-Coarse Particle Advantage
The approximately 15 µm D50 and 50 µm D95 provide the greatest thickness build and cavity filling in the GP Series.
Lowest-Density GP Grade
At approximately 2.2 g/cc, GP-800 delivers maximum density reduction while retaining structural integrity.
GP-800 compared with GP-600
GP-800 Extra-Coarse Grade
D50: approximately 15 µm
D90: approximately 35 µm
D95: approximately 50 µm
True density: approximately 2.2 g/cc
Best fit: maximum build, extreme pressure
and heavy structural systems
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: high build, volume filling and
lightweight cementitious systems
Maximum Volume Filling
The extra-coarse distribution provides the greatest thickness build and cavity filling in the series.
Reduced Binder Demand
Oil absorption of approximately 20 g/100 g supports high loading and formulation economy.
Structural Stability
The ultra-high-strength shell helps limit shrinkage, cracking and deformation in heavy sections.
Extreme-Service Stability
Pressure resistance and thermal stability suit deep-well cementing and heavy industrial service.
Formulation advantage: GP-800 supplies the largest particles and lowest true density in the GP Series for maximum thickness, volume extension and lightweight structural build.
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.
An extra-coarse profile for maximum build
The published particle-size profile reflects GP-800’s role in extreme-duty, thick-section systems.
Particle-Size Distribution
Published typical values
Bar lengths directly represent the published particle-size values on a common 50 µm scale.
GP-800 Technical Profile
Published product-page values
Particle & Density
- D50: ~15 µm
- D90: ~35 µm
- D95: ~50 µm
- True density: ~2.2 g/cc
Surface & Stability
- Oil absorption:~20 g/100g
- Surface area:~3 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-800 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-800 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 / ultra-high strength |
| True Density | Approximately 2.2 g/cc |
| Particle Size — D50 | Approximately 15 µm |
| Particle Size — D90 | Approximately 35 µm |
| Particle Size — D95 | Approximately 50 µm |
| Surface Area | Approximately 3 m²/cc |
| Oil Absorption | Approximately 20 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 |
| HS Code | 2621.90.0000 |
| Transport | Not regulated as dangerous goods |
| Packaging | 25 kg HDPE-lined paper bags; jumbo / bulk bags on request |
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