Protective coating Fred

steelfoamtimber

Product overview
Fred by Intelligent Membranes is an advanced intumescent, fire-retardant thermal barrier coating designed to protect spray foam insulation and timber structures. Formulated to deliver fire resistance while preserving structural integrity, FRED is suitable for new-build and retrofit projects where documented fire protection performance is required.

Key Features and Benefits

• Fire-Resistant Protection for Spray Foam: Provides effective fire resistance when applied over spray polyurethane foam to reduce flame spread.
• Ideal for Timber Structures: Forms a protective intumescent char on timber elements to reduce risk of fire damage and support regulatory compliance.
• Simple Application: Liquid-applied; can be spray-applied for seamless coverage (spray application requires an intumescent spray machine).
• Non-Toxic and Low VOC: Low/zero VOC formulations suitable for projects with strict emissions requirements, including Net Zero and Passivhaus targets.
• Tested and Certified: Certified to Class A2‑S1, D0 and supported by fire test reports to recognised standards.

Spray foam thermal barrier – the Class B build-up
Exposed spray foam is combustible and typically classifies as Euroclass E. FRED is intended as the intumescent thermal barrier when applied as a build-up of: spray foam → Supergrip FR fire-rated primer → FRED. This system can bring exposed foam to a Class B reaction to fire, while FRED itself is certified Class A2‑S1, D0.

Testing and Performance
FRED achieved a 25-minute Warrington fire test rating when applied to a load-bearing timber frame wall under an 8 kN per l/m load (tested to BS EN 1365-1:2012 + corr 2013). FRED exhibits low to zero ignitability, low heat release and forms an intumescent char that increases barrier capacity under fire exposure.

Application Guidance

• Intended for internal use. For external applications FRED should be overcoated with a suitable fire-retarding flexible coating or used in accordance with local building regulations.
• If spray-applied, use an intumescent spray machine; a TriTech T5 or machine with similar specifications is recommended.
• Suitable substrates include timber, spray polyurethane foam, concrete, steel and timber sheeting. No primer is required on most surfaces (use Supergrip FR primer where specified for the spray-foam build-up).
• Dries quickly; typical formulations are low-VOC / solvent-free.

Related guides (titles)

• Spray Foam Fire Protection: How Foam, Primer and FRED Achieve Class B
• Intumescent Paint Explained: How Fire Retardant Coatings Protect Timber and Spray Foam
• Fire Protection for Timber Frame and Spray Foam
• Understanding Our Certifications and What They Mean for You

Quality assurance
Installation and QA record sign-off procedures are provided by Intelligent Membranes as part of the product quality assurance documentation.

Technical specifications

• Product name: FRED (intumescent fire-retardant thermal barrier)
• Certification: Class A2‑S1, D0
• Warrington fire test rating: 25 minutes (load-bearing timber frame to BS EN 1365-1:2012 + corr 2013 with 8 kN per l/m load)
• Intended substrates: timber, spray polyurethane foam, concrete, steel, timber sheeting
• Typical application methods: spray (requires intumescent spray machine), roller or brush where appropriate
• Primer: Supergrip FR specified as part of spray-foam Class B build-up where required
• VOC: low / solvent-free formulation
• Use: internal; external use requires overcoating with an appropriate fire-retarding flexible coating or compliance with local regulations
• Recommended spray equipment: TriTech T5 or similar for spray application