This document provides information on the FS370 fire protection coating. It is a solvent-based intumescent coating that can be applied to interior or exterior structural steel. It offers up to 120 minutes of fire resistance when applied at a very thin dry film thickness, allowing architectural designs to be maintained. It is spray-applied and intended for use in commercial, industrial, and residential buildings to provide fire protection and aesthetic appeal to steel structures.

1. FIRE SECURITY SYSTEMS
Steel Fire Protection
FS370 Indoor / Outdoor
ExcellenceinFireTechnology
Solvent based thin-film intumescent coating
optimised for 120 minutes fire resistance to
structural steelwork

2. DESCRIPTION
Fire Security Systems FS370 is a Solvent
based intumescent coating for exterior and
interior structural steel. Unlike ordinary
fireproofing, FS370 is applied at minimum
thickness and requires no reinforcement.
With its incredibly THIN Dry Film Thickness
it represents a breakthrough in interior fire
protection, design and technology.
FS370 is spray applied and offers up to 120
minutes fire protection under BS476: Part 21
FS370 has been designed to allow fireproof-
ing without compromising aesthetic appeal.
FS370 protects open and closed steel
sections against loss of bearing capacity for
up to 120 minutes. The major appeal for the
FS370 is the external application ability
where architects and engineers want to view
their steelwork designs.
WHERE TO USE FS370
FS370 can be applied in commercial, indus-
trial and residential applications, exterior and
interior where architectural designs call for a
thin-film, aesthetic, highly decorative finish.
WHY USE FS370?
FS370 gives you Fire Protection with
Aesthetic Appeal.
FS370 has been designed to allow fireproof-
ing without compromising the look of the
structure:
- Competitive dry film thicknesses,
- Applied as a thin layer that does not com-
promise intricate designs and shapes
created from the structural steel,
- Easy over coating with a wide range of
coloured (RAL) finishes,
- 2 Hour Protoection for interior and exterior
applications.
FS370 Provides intumescent fire protection to exterior and
interior structural steelwork while maintaining architectural
aesthetics for commercial infrastructure, assets including:
- Airports
- Stadiums and Leisure Facilities
- Office Buildings
- Retail Complexes
- Cinemas
- Residential low and Highrise Apartments
- Atriums
FS370 Provides intumescent fire prote
TYPICAL APPLICATIONS

3. Primer
FS370
Topcoat
STANDARD APPLICATION
THE WINNING ADVANTAGE
- Exterior and Interior application
- Recognized as the Lowest DFT’s on the market
- Classified for up to 2 hours to BS476: Part 21.
- Market Leader
- Solvent based
- Lightweight, thin-film application.
- Maintains contour of substrate.
- Architectural, decorative finish.
- Single component (stir and spray).
- Cost effective due to low film thicknesses.
REQUIRED DATA
Product Fire Rating (minutes)
FS370 Indoor 30 / 60
FS370 Outdoor 90 / 120
Approvals
BS476: Part 21
Transport / Storage
- Transport and store free from frost- preferably at a
minimum of +5oC to a maximum of +30oC.
- shelf-life of unopened pails: 12 month from date of manu-
facture.
- Opened pails must be re-sealed.
Packaging
- 25 kg net weight (19 litres or 5 gallons)
- Plastic pails
- Other sizes on request
Surface Preparation
Please refer to the Technical Data Sheet
Application
Please refer to the Technical Data Sheet
Drying Time
Please refer to the Technical Data Sheet
Top Coats
Please refer to the Technical Data Sheet
Safety and the Environment
Please refer to the Technical Data Sheet

4. FIRE SECURITY SYSTEMS
Norway :
Skibåsen 20b -4636 Kristiansand Norway
Tel:+ 47 95 47 80 00 Fax: +47 38 02 15 31
norway@fire-security.net
Canada:
PO Box 21096, Coquitlam BC V3E 3P9 Canada
Tel:+1 604 941 1001 Fax: +1 604 648 9311
mail@fire-security.net
www.Fire-Security.net
Disclaimer: The above data, particularly the recommendations for the application and use of Fire Security products are based on the manufacturer's
knowledge and experience. Due to different materials and conditions of application, which are beyond our control, we recommend in any case to carry
out sufficient tests in order to ensure that Fire Security products are suitable for the intended purpose and applications. Therefore, any liability for such
recommendations or any oral advice is expressly excluded unless we have acted willfully or by gross negligence. It is always the responsibility of the
installer / purchaser to guarantee correct preparation, DFT (Fire Security Coatings) and thickness (Fire Security Firestop Products) of all Fire Security
products. Fire Security Systems is not liable for installation or faulty installation. It is always the responsibility of the installer / purchaser to guarantee
and certify the installation of materials.
UAE :
PO Box 40068
Ajman - United Arab Emirates
Tel: +971 6 7478842 Fax: +971 6 7478843
UAE@fire-security.net