GEOSPHERES™ SERIES
CERAMIC
MICROSPHERES
WHITE & GREY
White and grey alumino-silicate microspheres engineered for density control, rheology improvement, surface enhancement and mechanical performance in coatings, construction, polymers and composites.
Shape changes
formulation
behaviour.
The rounded particle geometry of ceramic microspheres reduces particle-to-particle friction compared with irregular or plate-like mineral fillers. This can support lower viscosity, smoother application, improved packing and more predictable rheology.
Grade selection depends on colour, particle-size distribution, density, crush requirement, processing shear and the final performance target.
Density Control
Reduce formulation or component weight.
Improved Flow
Lower internal friction and binder demand.
Surface Quality
Smoother finish, sanding and burnish resistance.
Dimensional Stability
Help manage shrinkage and warpage.
Select by colour,
finish and duty.
White-series and grey-series products address different appearance, particle-size and reinforcement requirements.
WP-210
Ultra-fine white ceramic microspheres for premium coatings, putties, sealants and polymer systems where brightness, smoothness and appearance retention matter.
GP-200 → GP-800
High-strength grey ceramic microspheres spanning fine to extra-coarse grades for construction, industrial coatings, composites and demanding engineered systems.
Five grades.
Clear performance
roles.
Move from fine surface enhancement to coarse, higher-duty reinforcement as the grade number increases.
WP-210
White Ceramic Microspheres
Premium functional microfiller for coatings, sealants, composites and cementitious systems requiring smoothness and appearance.
GP-200
Fine High-Strength Grade
Fine grey spheres for tile grouts, repair systems, coatings and adhesives requiring reinforcement with controlled rheology.
GP-400
Balanced Reinforcement
Versatile construction and polymer grade balancing particle size, workability, density control and mechanical reinforcement.
GP-600
Density Reduction Grade
Coarser high-strength grade for high-build coatings, lightweight composites, repair systems and syntactic structures.
GP-800
Ultra-High-Duty Grade
Extra-coarse grade for high mechanical stress, refractory repair, specialty cementing and demanding industrial formulations.
Performance where
formulations work
hard.
Relevant end-use imagery shows how GEOSPHERES support coatings, construction, flooring and repair compounds.
Industrial & Protective Coatings
Hardness · flow · barrier performance · high-build application
Tile Adhesives & Mortars
Workability · trowelability · density control
Automotive Body Fillers
Sandability · smoothness · shrinkage control
Epoxy Flooring
Surface texture · reinforcement · dimensional stability
Composites & Syntactic Systems
Lightweighting · strength-to-weight · thermal performance
Polymers
PP, PE, PVC, ABS, thermosets and masterbatch systems.
Adhesives & Sealants
PU, MS polymer, epoxy adhesives and fairing compounds.
Oil & Gas
Lightweight cementing and specialty downhole systems.
Refractories
Insulating castables, kiln repair and high-temperature mortars.
Spheres behave
differently.
A morphology-led comparison with conventional irregular or plate-like mineral fillers.
| Property | GEOSPHERES Ceramic Microspheres |
Conventional Mineral Fillers |
Formulation Impact |
|---|---|---|---|
| Particle geometry | Spherical | Irregular / plate-like | Improved flow and packing |
| Weight contribution | Lower-density options | Generally solid and heavier | Potential weight reduction |
| Binder demand | Typically lower | Often higher surface demand | Supports higher-solids design |
| Rheology | Isotropic particle shape | Shape-dependent thickening | More predictable processing |
| Surface finish | Smooth and sandable | Grade dependent | Improved finishing efficiency |
| Dimensional control | Strong packing contribution | Variable | Helps reduce shrinkage / warpage |
SPECIFY GEOSPHERES™
IN YOUR FORMULATION?
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