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SeaRox® SL 740

SeaRox® SL 740 is a low weight, semi rigid stone wool slab that improves onboard thermal comfort and energy efficiency. Available with various facings for vapour control and surface protection.

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  • Marine & Offshore
  • Thermal, comfort
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About SeaRox® SL 740

SeaRox SL 740 is a low weight, semi rigid stone wool slab developed for thermal comfort insulation onboard ships and offshore units. It delivers stable thermal performance and easy handling. Available with various reinforced aluminium foil and glass cloth facings upon request. Choose SL 740 when you need a low weight slab that balances thermal comfort, low moisture uptake and the option of factory applied facings to simplify finishing and improve durability.

  • 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

Used for thermal and acoustic insulation of bulkheads and decks on ships and offshore units.

Available dimensions

Standard dimension for SeaRox SL 740 is 600x1000mm in thicknesses 30mm, 50mm and 100mm. Please check for local variations.

Facing information

Reinforced aluminium foil (ALU) or glass cloth (GW200, GW400, GW-A, and ALU-G) facings are available on request. Recommended maximum temperature for facings is 80°C.

Why SeaRox?

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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.

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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:

NameUnitTest standardValue
Nominal densitykg/m3EN 160245
Water absorptionkg/m²EN 1609≤ 1
Sound absorption (directly mounted)ISO 354t=50mm unfaced αw = 0,75
Reaction to fireIMO 2010 FTPCNon-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 SL 740

SeaRox SL 740

Download product datasheet

SeaRox® marine and offshore manual

SeaRox® marine and offshore manual

This is a comprehensive technical guide to our SeaRox stone wool insulation.

SeaRox facings brochure

SeaRox facings brochure

Improve the performance and safety of your SeaRox insulation with specialist pre-applied facings

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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.

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Looking for answers?

If you have technical questions about products or need support for your projects, our technical experts are here to help you.