ProRox® FSL 960 NA

Name: ProRox® FSL 960 NA
Brand: Rockwool

ProRox® FSL 960NA combines the flexibility and fire resistance of stone wool with exceptional high-temperature performance up to 1200˚F. This insulation board is optimised for applications involving light mechanical loads.

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Industry and product areas

Energy & Manufacturing
Boilers
Industrial vessels
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ProRox®

About ProRox® FSL 960 NA

ProRox® FSL 960^NA stone wool insulation board delivers reliable performance in high-temperature industrial applications with light mechanical loads. Crafted from volcanic rock, this naturally fire-resistant material provides essential safety protection in demanding industrial environments. The flexible design reduces heat loss and energy consumption while maintaining the durability needed for industrial conditions. ProRox® FSL 960^NA is available in multiple dimensions, with optional facings to meet the project requirements.

Resists water absorption to deliver long-term durability
Non-combustible and fire resistant
Easily conforms to irregular surfaces

Application

ProRox FSL 960^NA is used in process equipment, boilers and vessels across various industrial sectors.

Available dimensions

Standard dimension for ProRox FSL 960^NA is 24"x48" in the thickness range from 2" to 4". Please check for local variations.

Certificates

UL Classified
UCL Listed

Why ProRox?

Energy‑efficient, fire‑safe insulation

ProRox® delivers energy-efficient, fire-safe insulation for energy and manufacturing, supporting corrosion mitigation in demanding environments. The robust stone wool construction ensures complete protection when it comes to heat and fire, meeting all industry standards and offering long-term durability.

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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	8

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 FSL 960 NA

Download product datasheet in English

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ProRox FSL 960 NA

Download product datasheet in French

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ProRox® process manual

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

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Rockassist brochure

Discover our Rockassist calculation program - free of charge!

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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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If you have technical questions about products or need support for your projects, our technical experts are here to help you.