Global supplier of refractory & thermal insulation since 2001

Rock Wool Insulation

Basalt-based blankets and boards for thermal, acoustic and fire insulation.

Rock Wool Blanket & Board
Product Overview

Rock Wool Blanket & Board

Rock wool blanket is an inorganic fiber blanket made from basalt as the main raw material, through a series of processes including high-temperature melting, fiberization and processing.

It offers excellent insulation, sound absorption, fire-prevention performance and light weight, and is a green, environmentally friendly new building material. The blanket features a single-sided reinforcement mesh of 1-inch (25 mm) wire mesh with strong binding force, ensuring the rock wool will not tear or be damaged.

Rock wool board is a board product with certain strength, mainly used for fireproofing and sound absorption of partition and curtain walls, roof insulation, and thermal insulation of industrial kilns, ovens and large tanks.

Basalt based Fire prevention Sound absorption CE certified board
Size & Specifications

Available Sizes & Uses

Rock Wool Blanket

  • Excellent insulation, sound absorption and fire prevention
  • Light weight and environmentally friendly
  • Single-sided 25 mm wire mesh reinforcement
  • For pipes, containers, storage tanks, boilers and pipelines

Rock Wool Board

  • Length 1200 mm × width 600 mm
  • Thickness 12.5–200 mm; density 40–200 kg/m³
  • Non-combustible (Class A)
  • For partition walls, curtain walls, roofs and industrial kilns
Technical Data

Rock Wool Board Properties

PropertyValue
Shot content (particle diameter ≥ 0.25 mm)≤ 12.0%
Average fiber diameter≤ 7.0 μm
Density tolerance+10, −10
Thermal conductivity coefficient (avg. 70±5°C)≤ 0.044 W/(m·K)
Thermal load contraction temperature (density > 60 kg/m³)≥ 720
Moisture content≤ 0.5%
Combustion propertyNon-combustible (Class A)
Organic material content≤ 3.0%
Special sizes and densities can be manufactured on request.
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