Structural Fire Protection

Protecting the structural frame of a building from fire allows more time for evacuation and limits the damage to the building.

We fit the following generic products and systems which prevent the temperature of steel rising to a critical level, all supported and documented by thickness checks and certification in accordance with Firas installer schemes.


We supply and apply thin film intumescent coatings from most major manufacturers and offer decorative finishes between 30-120 minutes fire protection. All our applications are followed up with in-house Quality Assurance inspections and Dry Film Thickness (DFT) checks completed in accordance with industry standards and our FIRAS third party accreditation requirements.

We apply both solvent and water based paints, with water based paints being our first option where possible to limit the release of VOCs (volatile organic compounds) to control our impact on the environment.


We supply and apply cementitious and gypsum vermiculite sprays to provide up to 240 minutes fire protection to structural steel and concrete frames/slabs.

We are approved applicators of Promat products, an industry leader in passive fire protection. We also own and maintain the latest spray pumps both electric and diesel powered to facilitate projects of all size.

Our excellent technical knowledge combined with years of experience in spray applications enables us to calculate thickness requirements to upgrade various existing slab constructions to improve fire resistance.


Although fibre spray is no longer a commonly used material in new builds, there are often requirements to repair and/or maintain existing installations/applications. We are one of the few companies with the capability and spray equipment to carry out this work.

We are approved applicators of Promat fibre sprays and often hold these products in stock avoiding long lead in times for repairs.


Board is commonly used where intumescent paint is not suitable or cost effective. Our knowledge of available boards allows us to propose the most suitable and cost efficient specification, from an extensive range of products, to suit each project.

We install a full range of boards from all the leading manufacturers including Promat, British Gypsum, Rockwool and Knauf.

intumescent structural steel fire protection

Whatever your needs – paint, spray or board – we’re here to help. Get in touch to discuss your options

The Golden Thread

Recognising the need and demand for such expert services, Golden Thread Fire Delay provide a complete menu of fire compliance installation and consultancy services from surveying and inspections to installation and maintenance of fire compartmentation.

We are market-leading specialist installers of Passive Fire Protection (PFP) which includes fire doors, firestopping systems, intumescent coatings, sprayed cementitious and thermal coatings, all types of fire protection board, and soffit fire, thermal and acoustic lining systems.

Our works are backed by third-party accredited certification, included as part of a comprehensive operations and maintenance manual package handed over on completion.