ProRox® FSL 940 NA

Name: ProRox® FSL 940 NA
Brand: Rockwool

ProRox® FSL 940 NA is a flexible stone wool insulation board that delivers exceptional durability and thermal efficiency in high-temperature industrial settings.

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Industry and product areas

Energy & Manufacturing
Boilers
Industrial vessels
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ProRox®

About ProRox® FSL 940 NA

When you need flexibility, thermal efficiency and fire resistance, choose ProRox FSL 940^NA to protect your process equipment. Designed for high-temperature settings up to 1200˚F, ProRox FSL 940^NA delivers exceptional thermal insulation, reducing energy consumption in demanding industrial environments. This flexible board adapts to various applications, with dimensions and thickness to meet your specific requirements. ProRox FSL 940^NA ensures optimum safety and performance for your industrial operations.

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

Application

ProRox® FSL 940^NAhelps reduce heat loss and improve energy efficiency in process systems.

Available dimensions

Standard dimension for ProRox FSL 940^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	6

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 940 NA

Download product datasheet in English

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ProRox FSL 940 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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