ProRox® SL 680 NA
ProRox® SL 680 NA (North America) is a rigid, fire-resistant stone wool slab specially engineered for hydrocarbon passive fire protection in high-risk industrial environments.
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- Industrial vessels
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About ProRox® SL 680 NA
Built for safety, ProRox SL 680NA provides reliable passive fire defence at temperatures up to 1200°F and meets the rigorous requirements of the API 521 standard for hydrocarbon fire protection. The slab's exceptional fire resistance, and excellent surface burning characteristics, ensures long-term protection and compliance in demanding petrochemical applications. Beyond fire protection, the product delivers significant thermal and acoustic insulation benefits, contributing to operational efficiency and worker safety.
- 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
Choose ProRox SL 680NA where hydrocarbon passive fire protection is critical, and where safety standards and regulatory compliance are non-negotiable.
Available dimensions
Standard dimension for ProRox SL 680NA is 24"x48" in thickness range from 2" to 3.5". 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 | 11 |
| Water absorption | kg/m² | EN 1609 | ≤ 1 |
Downloads
Our goal is to help you quickly find the documentation you need. If you’re unable to locate specific information, please reach out - we’re here to support you.

ProRox SL 680 NA
Download product datasheet in English

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

Safety Use Instruction Sheet NA
Download SUIS in English

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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