SeaRox® MA 740 ALU
Providing efficient thermal comfort and effective noise reduction, ROCKWOOL® SeaRox MA 740 resilient stone wool mats are easy to install and are compressed at delivery.
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Industry and product areas
- Marine & Offshore
- Thermal, comfort
- Explore by product range
- SeaRox®
About SeaRox® MA 740 ALU
When seeking efficient thermal insulation for marine and offshore applications, consider ROCKWOOL SeaRox MA 740 ALU lightweight stone wool mats. The mats provide a comfortable indoor environment for guests and crew; they also offer good acoustic properties. Supplied as a highly compressed roll, reducing transport costs, the insulation is flexible and easy to install. SeaRox MA 740 ALU insulation comes faced with reinforced aluminium foil as standard; glass cloth facings are available on request.
- Resists water absorption to deliver long-term durability
- Non-combustible and fire resistant
- Easily conforms to irregular surfaces
Application
SeaRox MA 740 ALU stone wool mats can be used wherever efficient thermal insulation with good acoustic performance is needed, including in ventilation ducts due to their compression resistance.
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 | 45 |
| Water absorption | kg/m² | EN 1609 | ≤ 1 |
| Sound absorption (directly mounted) | ISO 354 | t=50 mm unfaced αw = 0,6 | |
| Reaction to fire | IMO 2010 FTPC | Non-combustible Low flame-spread properties |
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 MA 740 ALU
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.








