ProRox® GR 903
Granulated stone wool insulation ideal for irregular and hard-to-reach spaces. ProRox® GR 903 delivers effective thermal and acoustic insulation of voids, cold boxes, air separation plants and other industrial applications.
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Industry and product areas
- Energy & Manufacturing
- Cold boxes
- Chimneys
- Boilers
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About ProRox® GR 903
ProRox GR 903 is a granulated stone wool insulation product developed for flexible applications where traditional slab or mat insulation is not a practical choice, but where high performance is still essential. With excellent thermal conductivity across a wide temperature range (Up to +500°C), ProRox GR 903 helps maintain process efficiency and reduces energy loss, giving you confidence in meeting thermal, acoustic, and safety requirements.
- Resists water absorption to deliver long-term durability
- Non-combustible and fire resistant
- Easily conforms to irregular surfaces
Application
Designed for stuffing voids, cavities, and spaces with complex geometries, ProRox GR 903 enables effective thermal and acoustic insulation in areas that are otherwise difficult to access.
Available dimensions
Why ProRox?
Energy‑efficient, fire‑safe insulation
Easy to install, durable and CUI‑mitigating
ProRox is easy to install, dimensionally stable, and sustainable, providing proven energy and CO₂ savings while minimizing the risk of corrosion under insulation. Choose ProRox for reliable, high-performance insulation you can trust.
Product properties
Our products are designed with your specifications in mind:
| Name | Unit | Test standard | Value |
|---|---|---|---|
| Maximum service temperature | °C | EN 14706 | 680 |
Downloads
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ProRox GR 903 Int
Download product datasheet in English
ProRox GR 903
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ProRox GR 903
Download product datasheet in Norwegian
ProRox GR 903
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ProRox GR 903
Download product datasheet in Spanish
Online tools
We provide a wide range of free tools to support your work - from online calculators for energy and heat‑loss assessments to a comprehensive online pricing tool Rockprice. Whether you are just starting your project or require technical guidance along the way, we are here to assist you at every stage.
Looking for answers?
If you have technical questions about products or need support for your projects, our technical experts are here to help you.