IMPORTANT - Please Note:
All enquiry must complete the specification form so the correct product/products/ quantities can be specified, BEFORE making the order online. These forms align with building control and are essential for fire certification requests. Please send the filled specification form to [email protected] and we will guide you through the next steps
Thermoguard Thermocoat S is a high-performance, solvent-based intumescent paint system providing robust fire resistance to structural steel and cast iron. This advanced intumescent coating is engineered to protect load-bearing steel for up to 90 minutes, safeguarding the structural integrity of buildings during a fire. When the intense heat of a fire triggers a catalytic reaction, Thermocoat S swells to create a dense, insulating char layer up to 50 times the paint thickness. This char layer effectively keeps the steel below its critical temperature, preventing collapse and allowing more time for safe evacuation.
Key Features
- 90 Minute Fire Resistance: Provides up to 90 minutes fire resistance to load bearing steel and cast iron structures.
- Certified Performance: Holds Egolf fire test laboratory certification to BS 476 Part 21 – Fire Resistance, ensuring compliance with safety standards.
- Intumescent Protection: The intumescent paint system creates a highly effective insulating barrier against fire and heat.
- Aesthetic Finish: When used with a compatible decorative overcoat system, it ensures the system will enhance the building’s architectural and design features without compromising on safety.
- Complete System: Forms part of a comprehensive paint system providing fire resistance, including a recommended anti-corrosive primer and a durable topcoat.
Intended Use: Thermocoat S is optimised to protect shaped steel and hollow bracing
Applications
- Coverage: Prior to application the contractor should contact us and obtain a basecoat application schedule or follow on can guidance. Do not overspread as this will compromise the system and result in non-compliance and a failure to be certified
- Primer: Steel must be primed with a good quality anti-corrosive primer compatible with intumescent paints. We recommend one good coat of Thermoguard Steel Fire Paint Primer to 75 microns DFT. Alternatively, a zinc phosphate or other primer confirmed as compatible can be used.
- Basecoat: Apply Thermocoat S in accordance with the project-specific Thermoguard film thickness schedule. To receive this schedule, contact our technical department. The minimum number of coats will be specified to achieve the required fire rating.
IMPORTANT: PASSIVE FIRE PROTECTION NOTICE
Guidance Only: Product information on this website is for guidance ONLY. We strongly recommend contacting our technical department for a specification and quotation prior to purchase.
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No Certification: Products purchased without a formal specification will NOT qualify for certification.
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Liability Waiver: Failure to obtain professional advice or a formal specification absolves Chase Insulations Ltd (T/A Buy Insulation Online) of all liability. We are not responsible for property damage, loss of life, or financial costs resulting from incorrect product selection or application.
Important - Please Note:
All enquiries must complete the specification form so the correct product/products/ quantities can be specified BEFORE making the order online. These forms will align with building control and fire certification requests. Please send the filled form to [email protected]
- Thermocoat S is a solvent based intumescent coating.
- It provides up to 90 mins fire resistance to structural steel and cast iron, requires minimum coats.
- Available in 2.5Kg, 5Kg and 20Kg packs.
| Product Type | Solvent-Based Paint |
| Product Code | Thermocoat S |
| Brand | Thermoguard |
| Pack Size | 2.5KG, 10KG, 20KG |
| Fire Rating | 90 Minutes |
| Application Method | Brush, roller, or airless spray. |
| Dry to Recoat | Brush: min. 6 hours/ Spray: min. 12 hours |
| Water / Solvent Based | Solvent |
| Order Value | Delivery Charges | ||
|---|---|---|---|
| Up to £370.00 | £12 | ||
| Above £370 | Free Delivery | ||
| Delivery charges are dependent on the distance from our factory in Derbyshire. | |||
Returns And Refunds
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You may cancel your order at any time before it is dispatched or before we provide an estimated delivery date via email.
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Once the order is confirmed and dispatched, it becomes non-returnable. Products are shipped directly from the manufacturer, and we do not accept returns.
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Please inspect the product upon delivery and report any damage to the driver immediately. If the product arrives damaged, contact us immediately

