SeaRox® SL 620 NA
ROCKWOOL® SeaRox® SL 620 NA semi-rigid insulation slabs offer certified A-class fire protection with excellent acoustic performance in a thin, versatile insulation slab for marine and offshore steel constructions.
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Industry and product areas
- Marine & Offshore
- Fire protection
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About SeaRox® SL 620 NA
ROCKWOOL SeaRox SL 620NA thin, semi-rigid stone wool insulation slabs are engineered for A-class marine and offshore applications. USCG-approved, this superior insulation solution offers high acoustic performance, and IMO 2010 FTP Code-certified fire safety, contributing to a safe onboard environment. Ensure compliance with international maritime safety standards and build with confidence with SeaRox SL 620NA slabs.
- Resists water absorption to deliver long-term durability
- Tailored for fire-rated constructions
- Excellent acoustic performance for noise control
- Uniform appearance – easy to handle and cut-to-size on site
Application
Use ROCKWOOL SeaRox SL 620NA stone wool slabs for projects demanding compliance with the latest marine fire safety regulations combined with good acoustic performance.
Available dimensions
Standard dimensions for SeaRox SL 620NA are 24"x48" and 36"x48" in the thickness range from 1.57" to 4".
Certificates
Why SeaRox?
SeaRox® marine insulation - Fire safe and thermally efficient
SeaRox® insulation is engineered for the demanding needs of shipbuilding and offshore industries. Its high-quality stone wool provides superior fire protection, excellent acoustic and thermal performance, and long-term durability — all designed to keep people and assets safer at sea.
Tailored solutions — lightweight to standard
Whether you need lightweight or standard solutions, SeaRox® offers tailored products for every application and is delivered to the same exacting standards worldwide. The result: reliable performance that helps create safer, more comfortable onboard and offshore environments.
Product properties
Our products are designed with your specifications in mind:
| Name | Unit | Test standard | Value |
|---|---|---|---|
| Maximum use temperature | °F | ASTM C447/C411 | 1220 |
| Nominal density | lb/ft3 | ASTM C167 | 6.2 |
| Water absorption | kg/m² | EN 1609 | ≤ 1 |
| Water absorption | lb/ft² | EN 1609 | ≤ 0.2 |
| Sound absorption (directly mounted) | ISO 354 | t=1,57 inch αw =0,80 t=2,36 inch αw =0,90 | |
| Reaction to fire | IMO 2010 FTPC | Non-combustible Approved for A-class constructions |
Downloads
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SeaRox SL 620 NA
Download product datasheet
SeaRox® marine and offshore manual
This is a comprehensive technical guide to our SeaRox stone wool insulation.
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.