SeaRox® WM 660
SeaRox® WM 660 stone wool wired insulation mats provide maximum fire protection in marine and offshore environments.
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Industry and product areas
- Marine & Offshore
- Fire protection
- Explore by product range
- SeaRox®
About SeaRox® WM 660
ROCKWOOL SeaRox WM 660 stone wool wired insulation mats have been developed to offer H-rated (hydrocarbon) fire protection for marine bulkheads and firewalls in dedicated tested solutions. Ensure compliance for tested solutions using these non-combustible, firesafe wired mats. Can be supplied with reinforced aluminium foil (ALU) facings on request.
- Resists water absorption to deliver long-term durability
- Tailored for fire-rated constructions
- Excellent acoustic performance for noise control
- Easily conforms to irregular surfaces
- Uniform appearance – easy to handle and cut-to-size on site
Application
Use SeaRox WM 660 to provide firesafe insulation of bulkheads and firewalls in H-rated marine constructions in dedicated tested solutions.
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 | 150 |
| Water absorption | kg/m² | EN 1609 | ≤ 1 |
| Sound absorption (directly mounted) | ISO 354 | αw = 0,9 t=2x50 mm | |
| Reaction to fire | IMO 2010 FTPC | Non-combustible Low flame-Spread Properties Approved for H-class constructions |
Downloads
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SeaRox WM 660
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.








