SeaRox® WM 640
SeaRox® WM 640 is a fire-safe stone wool mat for insulating A-class steel constructions, ventilation ducts, steel pipes, and penetrations of A-class fire divisions.
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- Marine & Offshore
- Technical for piping and equipment
- Fire protection
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About SeaRox® WM 640
SeaRox WM 640 is a flexible, fire-safe stone wool mat engineered for A-class steel constructions and penetrations. One side is stitched with galvanized wire netting; reinforced aluminium facing is available on request. Use WM 640 to insulate pipes and pipe penetrations where A-60 fire integrity and high operating temperatures are required.
- 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 640 to insulate technical installations—especially pipes and pipe penetrations—in A-class steel constructions where A-60 fire integrity and high temperature resistance are required.
Available dimensions
Facing information
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 |
|---|---|---|---|
| Nominal density | kg/m3 | EN 1602 | 105 |
| Water absorption | kg/m² | EN 1609 | ≤ 1 |
| Sound absorption (directly mounted) | ISO 354 | αw = 0,9 t= 75mm | |
| Reaction to fire | IMO 2010 FTPC | Non-combustible Low flame-spread properties Approved for A-class constructions |
Downloads
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SeaRox WM 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.