Stone Wool

GlassRock Stone Wool Loose Fill

Non-granulated loose stone wool for cryogenic, cold box, air separation, and specialized cavity insulation.

GlassRock Stone Wool Loose Fill

Key Features

  • Excellent performance at cryogenic and low temperatures
  • Non-combustible – Euroclass A1
  • Loose-fill format for irregular spaces and cavities
  • Manufactured without binder
  • Low chloride content (9 ppm) – corrosion safe
  • Asbestos-free
  • Supplied in 20 kg bags

Product Overview

GlassRock Stone Wool Loose Fill Insulation is a high-performance, non-granulated mineral wool insulation product manufactured without binder. Designed for specialized applications in cryogenic systems, cold boxes, air separation units, and complex cavities where preformed products cannot be used.

Supplied in practical 20 kg bags. Chloride content 9 ppm, pH 7.4, asbestos-free.

Technical Specifications

Density100 – 200 kg/m³ (compacted)
Thermal Conductivity0.034 – 0.046 W/m·K
Fire ClassificationNon-Combustible / Euroclass A1 / Flame Spread 0 / Smoke Development 0
Water Absorption< 5% by weight (vapor sorption)
Thickness RangeAs required
DimensionsSupplied in 20 kg bags
StandardASTM C764, ASTM C553, ASTM C665, EN 13162, BS 5422, ISO 12241

Available Facings & Finishes

Plain / Unfaced

No Facing

Product supplied without facing. Maximum flexibility for concealed applications or where field-applied cladding will…

Recommended Applications

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