Skip to main content

SeaRox® FB 6050

Choose ROCKWOOL® SeaRox FB 6050 for lightweight, certified insulation offering firesafe, thermal, and acoustic protection for steel and aluminium constructions.

3D-image, product, Slabs, marine, offshore, SeaRox
Slab, facing, SeaRox®, naked, white glass cloth GW200, alu, product, RW-TI, 3D-image
installation, application, SeaRox, hybrid solutions, board, mat, FB 6000 range, FM 6000 range
3D, illustration, application, product, SeaRox FB 6050, SeaRox, marine
luxury cruise ship, open ocean, aerial drone panoramic photo

1/5

  • Marine Equipment Directive Certification
  • MER Certification

Industry and product areas

  • Explore by product range
  • SeaRox®
  • Marine & Offshore
  • Lightweight
  • Fire protection

About SeaRox® FB 6050

ROCKWOOL SeaRox FB 6050 insulation boards offer firesafe protection for A-class steel and aluminium constructions. They deliver maximum fire safety without excessive weight, ensuring you stay compliant and competitive in today’s complex market. Manufactured from natural volcanic rock, FB 6050 boards also deliver excellent thermal and acoustic insulation performance. Reinforced aluminium foil or glass cloth facings are available on request.

  • Lightweight to support lower fuel costs
  • Resists water absorption to deliver long-term durability
  • Tailored for fire-rated constructions
  • Excellent acoustic performance for noise control
  • Uniform appearance – easy to handle and cut-to-size on site

Application

SeaRox FB 6050 boards are designed to insulate fire-rated steel and aluminium A-class divisions where low weight is a factor, such as onboard passenger ships, naval vessels, and offshore supply vessels.

Available dimensions

Standard dimension for SeaRox FB 6050 is 600x1000mm, in thicknesses 30mm and 75mm. 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?

Cruiseship, SeaRox, Marine

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.

Windmill park with clouds and a blue sky, windmill park in the ocean aerial view with wind turbine Flevoland Netherlands Ijsselmeer. Green Energy production in the Netherlands on a sunny day

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 160270
Water absorptionkg/m²EN 1609≤ 1
Sound absorption (directly mounted)ISO 354t=30mm unfaced: αw = 0,55 acc. to ISO 354 (evaluated after ISO 11654)
Reaction to fireIMO 2010 FTPCNon-combustible
Low flame-spread properties
Approved for A-class constructions

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 FB 6050

SeaRox FB 6050

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® A-class brochure

SeaRox® A-class brochure

A-class stone wool insulation for marine and offshore applications.

SeaRox facings brochure

SeaRox facings brochure

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

rockprice, pricing, pricing system, tool, rockwool technical insulation, marine, offshore, industrial

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.

Learn more
employee, RW-TI, Industrial

Looking for answers?

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