Premium Rock Wool Insulation Boards | Factory Direct Bulk Supply (A1 Fireproof)

PRODUCT INTRODUCTION

Manufactured from high-purity basalt ore using our advanced low-slag technology, Hebei Woqin Rock Wool Boards provide superior thermal insulation and acoustic performance. With a Class A1 non-combustible rating and high acidity coefficient, this product ensures long-term stability and corrosion resistance. It is the ideal solution for demanding industrial pipelines, petrochemical facilities, and energy-efficient building envelopes.

Premium Rock Wool Insulation Boards | Factory Direct Bulk Supply (A1 Fireproof)


     ItemTechnical IndexStandard
DensityClient Specified (No deviation)GB/T 5480
Thermal Conductivity≤0.043 W/(m⋅K) (@ 70∘C)GB/T 10294
Fiber Diameter≤6.0 μmGB/T 5480
Heat Load Shrinkage Temp≥600∘CGB/T 11835
Slag Ball Content≤7.0 % (>0.25mm)GB/T 5480
Organic Matter Content≤4.0 %GB/T 11835
Acidity Coefficient (Mk​)≥1.6GB/T 5480
Fire RatingClass A1 (Non-combustible)GB/T 5464
Linear Shrinkage≤4.0 % (@ 650∘C×24h)GB/T 11835

The "Reliable Backbone" of Insulation: Purity Meets Performance:
Unlike standard mineral wool plagued by high slag content, Hebei Woqin uses a High-Purity Basalt formulation. We minimize non-fibrous waste to create a tighter fiber matrix, ensuring the board never sags, burns, or accelerates corrosion—even in the harshest industrial environments.

Key Technical Data (Based on High-Purity Formulation):

  • Low Slag Content: < 7% — Maximizes effective fiber ratio for superior R-value and a cleaner, less dusty installation.
  • Acidity Coefficient: > 1.6 — High chemical stability that actively prevents CUI (Corrosion Under Insulation) on steel pipes.
  • Water Repellency: ≥ 98% — Hydrophobic nature ensures performance holds up even in high-humidity coastal zones (e.g., Dubai).
  • Density Range: 60 - 160 kg/m³ — Customizable from partition walls to load-bearing industrial floors.
  • Service Temp: Up to 650°C — Engineered for high-heat steam pipelines and industrial furnaces.

Why This Matters for Your Project:

  • Combat CUI: The chemically neutral makeup protects billion-dollar steel assets from corrosion, rather than causing it.
  • Logistics Savings: Our Vacuum Compression Technology increases container loading by up to 15%, significantly cutting ocean freight costs.
  • Acoustic Control: High-density structure reduces noise transmission by up to 50% (Proven in Rotterdam Logistics Center).
  • Custom Facings: Available with Aluminum Foil (Vapor Barrier), Fiberglass Cloth, or Wire Mesh.

Applications:

  • Petrochemical Steam Pipelines (High Temp & Humidity).
  • Logistics Centers & Metal Roofs (Acoustic requirements).
  • Passive House Facades & Partition Walls.

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