Ceramic Microspheres GP 200

Ceramic Microspheres GP-200

GP-200 Grey Ceramic Microspheres are high-strength, fine particle alumino-silicate ceramic microspheres engineered to enhance performance in modern cementitious and construction formulations. In construction applications, GP-200 functions as a rigid microfiller and micro-reinforcing additive, helping improve compressive strength, abrasion resistance, dimensional stability, and long-term durability of mortar and concrete-based systems.

Unlike low-density hollow extenders used mainly for lightweighting, GP-200 is selected for mechanical robustness and particle integrity, making it suitable for demanding construction environments such as industrial flooring, repair mortars, grouts, overlays, and protective cementitious coatings.

General Characteristics

Synonyms

Ceramic microspheres, Cenospheres, Solid alumino-silicate microspheres

Chemical family / description

Naturally derived hollow alumino-silicate ceramic spheres (lightweight inorganic filler)

Molecular weight

Not applicable (mineral mixture)

Appearance

Light to dark grey color powder

Particle shape

Spherical

Specific Gravity

2.25-2.40 gm/cc

CAS No.

12141-46-7

EC / EINECS

Not single-substance (varies by source / classification)

HS Code.

2621.90.00

UN / Transport

Not regulated (non-hazardous inorganic powder)

Applications in Construction

Cementitious Repair Systems

Structural repair mortars
Patch repair compounds
Rapid repair and polymer-modified repair mixes

Grouts & Anchoring

Non-shrink grouts
Base plate and machinery grouts
Anchoring and gap-filling grouts

Industrial Flooring & Toppings

Epoxy-cement and cementitious floor toppings
Self-levelling underlayments
Heavy-duty warehouse and plant flooring

Concrete & Overlays

Polymer-modified overlays
Thin-section screeds and toppings
High-wear concrete surfaces

Cementitious Coatings

Waterproof cementitious coatings
Protective cement coatings
Levelling and smoothing compounds

Properties

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

Benefits

Higher compressive strength & load stability

Improves mechanical strength in mortars and grouts, supporting better load distribution and durability.

Improved abrasion and wear resistance

Ceramic hardness enhances resistance to surface wear in flooring and high-traffic zones.

Reduced cracking and improved dimensional stability

Rigid microstructure helps reduce shrinkage-related defects and improves shape retention under stress.

Better workability and controlled rheology

Fine spherical particles assist packing efficiency and mixing uniformity in cementitious systems.

Enhanced surface density and finish quality

Supports smoother trowel finish and improved surface integrity in toppings and overlays.

Improved long-term durability

Inert ceramic composition resists moisture and chemical exposure typically encountered on-site.

Safety and Hazards

GP-200 Grey Ceramic Microspheres are inorganic, non-toxic, and chemically inert under normal construction material handling conditions.

Non-flammable and non-reactive

Does not emit hazardous fumes

Dust generation should be minimized

Recommended PPE

Safety goggles
Gloves
Dust mask or respirator in dusty environments

Refer to the Safety Data Sheet (SDS) for detailed handling and occupational safety guidance.

Storage

Store in a dry, cool, and well-ventilated area

Protect from moisture and humidity

Keep bags tightly sealed after opening

Avoid mechanical damage to packaging

Proper storage ensures product flowability and consistent performance.

Packaging Information

Standard Packing

25 kg HDPE-lined paper bags
1 ton Jumbo / bulk bags

GPZS-10N is a Silver Zeolite antimicrobial powder engineered for durable hygiene performance in ceramic bodies, slips, engobes, and glazes.

Silver Zeolite Anti-Microbial Additive GPZ-10D (5% Silver Active) GPZ-10D is a Silver Zeolite antimicrobial powder engineered for long-lasting hygiene protection.

Silver Zirconium Phosphate (Ag–ZrP) is a high-performance inorganic antimicrobial pigment/additive designed to provide durable, long-term hygiene protection.

ECC 10000 Series Nano Coating is a fluorosilane-modified, low-surface-energy protective treatment engineered to upgrade ceramic and sanitaryware surfaces.

PZ 1000 is a polysilazane-based “diamond-like” nano coating engineered to deliver an ultra-hard, stain-resistant, easy-clean protective finish for ceramics.

Chemeguard Silane Easy Clean Coating is a silane-based nano coating engineered to provide easy-clean, water repellence, and anti-soil performance on glass surfaces.

MR POZZO High Reactivity Metakaolin is an ultra-fine, highly reactive pozzolanic mineral additive produced by controlled calcination of high-purity kaolin.

GP-400 Grey Ceramic Microspheres are medium-fine, high-strength alumino-silicate ceramic microspheres developed for demanding construction.

GP-600 Grey Ceramic Microspheres are coarse-grade, high-strength alumino-silicate ceramic microspheres engineered for construction formulations

GP-800 Grey Ceramic Microspheres are extra-coarse, ultra-high-strength alumino-silicate ceramic microspheres engineered for heavy-duty construction applications

Milled Glass Fibers are precision-cut and milled microfibers produced from continuous glass filaments and engineered specifically to reinforce cementitious

3M™ iM16K Glass Bubbles are high-strength, hollow glass microspheres manufactured from soda-lime borosilicate glass, engineered to deliver significant density

AXELRATE™ 440 is a high-purity Calcium Formate accelerator developed for modern dry mix mortar manufacturers and cement-based construction chemical formulations

Sodium Gluconate is a bio-based organic chelating agent and a highly effective cement set retarder extensively used in construction chemicals

CHEMTRETE 450 is a solvent-borne stone sealer based on advanced fluoroacrylate technology, engineered to deliver long-lasting water repellency

AQUATRETE 220 is a water-based stain resistant additive designed for tile grout applications to improve stain cleanability and surface resistance

SURFLON S-386 is a high-performance non-ionic fluorosurfactant wetting agent engineered to deliver extremely low surface tension, enabling rapid wetting

FC-106 is a fluorinated polymeric surface control additive engineered to deliver exceptional wetting, levelling, and gloss enhancement in epoxy coating systems

Teraseal 365 is a highly reactive, penetrating silane-based water repellent sealer designed for long-term protection of porous mineral substrates

Foamstab 2722 is a high-efficiency defoamer and de-aeration additive specially developed for solvent-free and high-build epoxy, polyurethane

FOAMSTAB 5550 is a high-performance, silicone-free polymer-based defoamer and air-release additive designed to eliminate entrapped air.

Foamstab FC 550 is a high-efficiency 5% active fluorosilicone-based defoamer engineered for premium solvent-borne coating systems.

3M™ Hollow Glass Microspheres – Grade K-15 are low-density, thin-walled soda-lime borosilicate glass microspheres specifically suited for lightweight

3M™ Hollow Glass Microspheres – Grade S28HS are high-strength, thick-walled hollow glass microspheres engineered for applications

3M™ Hollow Glass Microspheres – Grade iM16K are ultra-high crush strength hollow glass microspheres engineered for applications

3M™ Hollow Glass Microspheres – Grade XLD 3000 are a specialty ultra-low density and finer version of Glass Microspheres designed to deliver maximum weight reduction

FLOWEASE 1900 is a high-performance, VOC-free wetting and dispersing additive developed for aqueous coating systems, printing inks, and adhesive formulations.

FLOWEASE W-3499 is a highly efficient silicone-based wetting and levelling additive developed for aqueous coating systems, adhesives, and maintenance formulations.

FLUORODYNE™ FC 330 is a high-performance anionic fluorosurfactant (30% active) developed for water-borne architectural and roof coating systems

Milled Glass Fibers are precision-engineered, short-length inorganic fibers used as micro-reinforcement additives in roof coatings and waterproofing membranes.