Construction Additives
Pozzolanic Additive · Metaseal

METASEAL

Improves strength, density, and impermeability by reacting with free lime in the cement matrix. A calcined kaolin pozzolan formulated for high reactivity in strength- and durability-critical concrete.

High Reactivity Metakaolin
AppearanceWhite powder
Al2O3 + SiO3≥ 90%
Typical dosage5 – 15%
Mean particle size1.5 µm
01

How METASEAL Works

STEP 1 — DISPERSION

Fine Particles Fill the Matrix

Ultra-fine metakaolin particles disperse uniformly throughout the concrete mix, filling the spaces between cement grains and aggregates.

STEP 2 — REACTION

Reacts with Free Lime

Reactive alumina and silica combine with calcium hydroxide released during cement hydration, producing additional cementitious binding compounds.

STEP 3 — DENSIFICATION

Improves Strength & Impermeability

Newly formed hydration products refine the pore structure, increasing strength and density while reducing permeability throughout the concrete matrix.

02

Technical Specifications

Product
METASEAL — High Reactivity Metakaolin
Function
Pozzolanic Additive / Structural Modifier
Appearance
White to Off-White Fine Powder
Al₂O₃ + SiO₂ Content
≥ 90%
Mean Particle Size (D50)
1.5 µm
Specific Gravity
2.5 – 2.6
Recommended Dosage
5 – 15% Cement Replacement
Key Benefits
Strength, Density & Impermeability
Shelf Life
24 Months (Unopened, Dry Storage)
Packaging
25 kg Bag  •  1 Tonne Bulk Bag  •  Bulk Silo
03

Application Systems

HIGH-PERFORMANCE

High-Performance Concrete

Boosts compressive strength while reducing permeability, making it ideal for high-grade structural concrete mixes.

WATERPROOFING

Impermeable Concrete Systems

Reduces water and chloride ingress in exposed and below-grade concrete structures, improving durability.

PRECAST

High-Strength Precast Elements

Supports demanding strength and density requirements for precast and prestressed concrete production.

INFRASTRUCTURE

Marine & Bridge Structures

Improves long-term durability in aggressive exposure environments, including marine, coastal and bridge applications.

04

Handling & Storage

Storage Information

Storage Condition Sealed, Protect from Moisture
Mixing Add with Cementitious Materials During Batching
Dust Control Handle as a Fine Powder, Minimize Airborne Dust
Storage Temperature Ambient, Dry

Safety & Documentation

Compatibility Most Portland Cement & SCM Systems
Personal Protection Refer to Safety Data Sheet (SDS)
Transport Classification Non-Hazardous (Refer SDS)
Documentation TDS & SDS Available on Request
Request a sample or the full technical data sheet

Our team can advise on the right grade for your stone type and exposure.

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