SeaRox® SL 740 NA
ROCKWOOL® SeaRox® SL 740 NA semi-rigid stone wool slabs provide USCG-approved thermal insulation for bulkheads and decks, helping to maintain onboard comfort. Available in North America only.
1/5
Industry and product areas
- Marine & Offshore
- Thermal, comfort
- Explore by product range
- SeaRox®
About SeaRox® SL 740 NA
SeaRox SL 740NA semi-rigid stone wool insulation slabs are engineered to maintain a comfortable indoor environment in marine and offshore applications. The insulation slabs are easy to handle and install. Build with confidence using SeaRox SL 740NA slabs, which are USCG-approved under the Mutual Recognition Agreement between the US and the EC.
- Resists water absorption to deliver long-term durability
- Non-combustible and fire resistant
- Uniform appearance – easy to handle and cut-to-size on site
Application
Choose SeaRox SL 740NA stone wool slabs when you need a USCG-approved, thermal insulation solution for onboard comfort.
Available dimensions
Standard dimension for SeaRox SL 740NA is 24"x48" in the thicknesses 2.0" and 3".
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 | lb/ft3 | ASTM C167 | 2.8 |
| Water absorption | lb/ft² | EN 1609 | < 0.2 |
| Sound absorption (directly mounted) | ISO 354 | αw = 0,9 t= 2” (50mm) | |
| Reaction to fire | IMO 2010 FTPC | Non-combustible |
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.
PDS SeaRox SL 740 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.