ProRox® SL 590 NA
ProRox® SL 590 NA is a high-performance stone wool insulation that provides excellent thermal resistance, compressive strength, and moisture resistance. It is a highly reliable insulation surface that is able to handle foot trafic and pressure.
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Industry and product areas
- Energy & Manufacturing
- Storage tanks
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About ProRox® SL 590 NA
ProRox SL 590NA is a pressure-resistant rigid stone wool insulation slab designed to help your operation manage thermal loss on surfaces exposed to heavy mechanical loads. Ideal for insulating structural surfaces subject to foot traffic or pressure, it offers exceptional compressive strength and thermal performance. With low water absorption and high dimensional stability, ProRox SL 590NA withstands demanding industrial conditions without compromising efficiency. Compliant with ASTM C612 Type IVA.
- Resists water absorption to deliver long-term durability
- Non-combustible and fire resistant
- Uniform appearance – easy to handle and cut-to-size on site
Application
Ideal for applications where insulation will be subjected to heavy mechanical loads or frequent foot traffic, such as the tops of tanks or vessel heads.
Available dimensions
Standard dimension for ProRox SL 590NA is 24"x48" in the thickness range from 2" to 3". Please check for local variations.
Certificates
UL Classified
UCL Listed
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 use temperature | °F | ASTM C447/C411 | 1200 |
| Nominal density | lb/ft3 | ASTM C167 | 15 |
Downloads
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ProRox SL 590 NA
Download product datasheet in English

ProRox SL 590 NA
Download product datasheet in French

ProRox® process manual
This is a comprehensive technical guide to our ProRox stone wool insulation.

Rockassist brochure
Discover our Rockassist calculation program - free of charge!
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.
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