SeaRox® SL 640
Our high-density SeaRox® SL 640 rigid stone wool insulating fireboards are certified for A-class steel constructions in the marine and offshore industries.
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Industry and product areas
- Marine & Offshore
- Fire protection
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- SeaRox®
About SeaRox® SL 640
SeaRox SL 640 offers firesafe insulation for the protection of your guests and crews at sea. Based on ROCKWOOL’s non-combustible stone wool, these high-density, robust fireboards can withstand high maximum surface temperatures, maintaining integrity and performance when you need it most. Easy to handle and install, they are available with various reinforced aluminium foil and glass cloth facings on request.
- Resists water absorption to deliver long-term durability
- Tailored for fire-rated constructions
- Uniform appearance – easy to handle and cut-to-size on site
Application
The high-density rigid insulation slabs are used primarily as part of approved A-class bulkhead and deck constructions in marine and offshore applications. They are available with various reinforced aluminium foil or glass cloth facings.
Available dimensions
Facing information
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 |
|---|---|---|---|
| Nominal density | kg/m3 | EN 1602 | 130 |
| Water absorption | kg/m² | EN 1609 | ≤ 1 |
| Sound absorption (directly mounted) | ISO 354 | t=50 mm unfaced αw = 0.80 t=2x30 mm unfaced αw = 0.90 | |
| Reaction to fire | IMO 2010 FTPC | Non-combustible Low flame-spread properties Approved for A-class constructions |
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.
SeaRox SL 640
Download product datasheet
SeaRox® marine and offshore manual
This is a comprehensive technical guide to our SeaRox stone wool insulation.
SeaRox facings brochure
Improve the performance and safety of your SeaRox insulation with specialist pre-applied facings
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.