Laboratory Test Results: 100K Density Rock Wool Core Panel Verification
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Laboratory Test Results: 100K Density Rock Wool Core Panel Verification

We recently conducted internal laboratory tests on 100K Density Rock Wool Core Panels, including tensile strength, compressive strength, water repellency, and water absorption tests.
Aug 27th,2026 4 Views

Demand for climate-resilient insulation materials continues to expand across Southeast Asia, Africa, and other developing infrastructure markets. To provide verifiable engineering data for structural design and material selection, internal laboratory testing has been completed on the 100K-density rock wool core panel (Specification: 2400 mm × 1225 mm × 98 mm).

The evaluation measured mechanical strength, microstructural parameters, and material composition to establish baseline compliance for exterior wall and roofing composite systems.

Mechanical Performance & Structural Parameters

Core mechanical properties define the structural stability and safety margins of sandwich panel systems under environmental loading, including wind suction and equipment loads on roof spans.

Parameter Standard Spec / Threshold Tested Result Compliance Status
Core Density 100 kg/m³ (Tolerance: ±8 kg/m³) 102.8 kg/m³ Pass
Tensile Strength (Perpendicular to surface) ≥ 120.00 kPa 137.89 kPa Pass
Compressive Strength (Perpendicular to surface) ≥ 50.00 kPa 50.78 kPa Pass

  • Tensile Strength: The measured 137.89 kPa confirms bond integrity and reduces the risk of facing panel delamination under severe wind loads.

  • Compressive Strength: At 50.78 kPa, the core supports standard static loads required for roof and wall assembly without structural deformation.

Moisture Resistance in High-Humidity Environments

In humid, tropical, and coastal regions, liquid water penetration degrades insulation thermal resistance and increases dead load weight on support frames.

  • Hydrophobic Coating: Integrated water-repellent agent treats individual fibers to restrict capillary action and surface absorption.

  • Thermal & Weight Integrity: Water resistance testing confirms stable thermal conductivity and prevents moisture accumulation within the core matrix over extended exposure cycles.

Microstructural Quality & Composition Control

Microstructural uniformity directly influences physical strength and thermal behavior. Fiber geometry and binder concentration were measured to confirm batch-to-batch consistency.

  • Fiber Diameter: The average fiber diameter measured 5.0 μm (against a maximum limit of ≤ 6.0 μm). Fine, uniform fibers form an interconnected lattice that retains mechanical strength and air entrapment efficiency.

  • Organic Content: Measured at 3.85% (against a compliance cap of ≤ 4.0%). Controlling binder content maintains the core’s non-combustible properties and limits thermal shrinkage during elevated temperatures.

Engineering Application Summary

The test data confirms that the 100K-density rock wool core meets required standards for industrial facilities, commercial complexes, and logistics hubs. Verified strength and composition metrics assist contractors and structural engineers in fulfilling project compliance, streamlining approval workflows, and managing material risks.

* Complete technical datasheets and full test reports are available upon request from the technical sales division.