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Lightweight Insulated Construction Block

INSUBLOCK

Lightweight EPS thermal insulation hollow blocks for walls and partitions. Available in 8”, 6” and 4” sizes, only 12–15 kg per block.

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Product Overview

Lightweight Insulated Construction Block

INSUBLOCK is the ultimate solution for efficient and durable construction. Manufactured from high-quality treated EPS polystyrene, aggregates, geopolymer binder, Portland cement and innovative additives, INSUBLOCK offers superior thermal and acoustic insulation, exceptional durability, and fire resistance — all while being ultra-lightweight for easy handling and fast installation.

Unlike conventional blocks, INSUBLOCK eliminates the need for specialised adhesives. Simply stack and secure using standard mortar or INSUMORTAR for an energy-efficient building process. Its unique design integrates insulation directly into the block structure, providing consistent whole-wall thermal performance.

Recommended for: External and internal walls for residential buildings, villas, apartments, offices, hotels and commercial structures in Oman. Designed primarily for non-load-bearing applications. If intended for load-bearing use, consult your structural consultant to evaluate performance and the required design method.

At a Glance
Sizes: 8” (40×20×20), 6” (40×20×15), 4” (40×20×10) cm
Weight: 12–15 kg/block
Thermal Conductivity: 0.11–0.13 W/mK
Compressive Strength: Up to 10 MPa
Fire Rating: Non-combustible, > 4 hours
U-Value: 0.48–0.56 W/m²K (200mm wall)

Why Choose INSUBLOCK

Key Benefits

Energy Efficient

Provides outstanding thermal insulation with a conductivity of 0.12 W/mK, reducing energy consumption and lowering heating and cooling costs significantly.

Fire Resistance

Built to withstand high temperatures, offering enhanced fire safety for your building and helping meet fire regulation compliance in Oman.

Superior Durability

Designed to endure environmental factors including humidity and temperature extremes, ensuring long-lasting structural protection.

Quick & Easy Installation

Lightweight at 12–15 kg per block, easy to handle and install without specialised adhesives — reducing labour costs and construction time.

Cost-Effective

Eliminates the need for expensive specialised adhesives and additional insulation layers — a versatile, affordable and all-in-one construction solution.

Acoustic Insulation

Reduces sound transmission between rooms and from external sources with a Sound Transmission Class (STC) of approximately 50 dB, creating a more peaceful environment.

Breathable Wall

Resists high humidity and is almost entirely rot-proof, ensuring long-term structural protection even in Oman's extreme climate conditions.

20-Year Warranty

Long-term assurance for thermal insulation performance — backed by MCP's commitment to quality and sustainable construction.

Product Characteristics

Engineered for Oman's construction demands.

Energy Efficiency

Energy
Efficiency

Noise Reduction

Noise
Reduction

Fire Resistance

Fire
Resistance

Quick ROI

Quick Return on
Investment

Green Building Product

Green Building
Product

Moisture Control

Moisture
Control

20 Years Warranty

20 Years
Warranty

Breathability

Breathable
Wall

Specifications

Technical Data

Sizes Available8” (40×20×20 cm), 6” (40×20×15 cm), 4” (40×20×10 cm)
Weight per Block12–15 kg
Thermal Conductivity (λ)0.11–0.13 W/mK
Compressive StrengthUp to 10 MPa
Fire Resistance RatingNon-combustible — > 4 hours
Sound Insulation (STC)≈ 50 dB
Water Absorption3.6% (INSUBLOCK 15 kg)
U-Value0.48–0.56 W/m²K (200mm + air resistance + 2cm plaster)
Adhesive RequiredNone – standard mortar or INSUMORTAR
Core MaterialEPS + Aggregates + Geopolymer + Portland Cement
Warranty20 Years
ComplianceTested to Omani & EN standards

Application

How to Install

1
Foundation & Layout

Set out the wall layout on a clean, level base. Ensure the foundation or floor slab is prepared and horizontal before commencing block work.

2
Mortar Bed

Apply a bed of INSUMORTAR (recommended) or standard mortar to the base course. INSUMORTAR eliminates thermal bridges at the joints for optimal wall performance.

3
Block Laying

Place INSUBLOCK in a running-bond pattern. No specialised adhesives are required. Blocks are lightweight (12–15 kg) and easy to handle and align.

4
Finishing

Rake joints and apply INSUPLAST or standard render to achieve a finished wall surface with additional insulation.

Documentation

Downloads & Lab Reports

Official technical documentation and lab test reports for INSUBLOCK.

Support

Frequently Asked Questions

INSUBLOCK is made from treated polystyrene, geopolymer, and unique additives to provide superior thermal and acoustic insulation, durability, and fire resistance.
INSUBLOCK offers excellent thermal insulation, reducing the need for additional heating or cooling, thereby lowering energy costs and improving overall building energy efficiency.
Yes, INSUBLOCK is a versatile product suitable for both residential and commercial construction projects. It can be used in walls, roofs, and other structural applications.
INSUBLOCK is lightweight and easy to handle, requiring minimal labor for installation. It does not require specialized adhesives, making it a quick and cost-effective solution.
Each INSUBLOCK has dimensions of 20x20x40cm, 10x20x40cm, 15x20x40cm with a weight starting from 12 kg per block.
INSUBLOCK has a thermal conductivity of 0.12 W/mK, ensuring effective insulation.
Yes, INSUBLOCK is designed to withstand environmental factors, including extreme temperatures and moisture, providing long-lasting protection for buildings.

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