Hempafire Extreme 550

Description

Hempafire Extreme 550 is a two component epoxy solvent-free, chemically curing intumescent coating for passive fire protection of structural steel against cellulosic fires. It is optimized from R30 to R120 fire durations and for in-shop applications. Fire protection at R180 and R240 may be possible depending on the project. On-site applications may be possible depending on the equipment and set up.
  • Features
    Very competitive thicknesses resulting in reduced paint consumption and less coats to apply. Wide coverage of protectable Hp/A, allowing the use of light steel sections for higher fire ratings. Fire protection up to 4 hours. Optimized for the range of R30 to R120. Excellent durability towards mechanical damages, chemical resistance and weather exposure. Weather resistant and up to C5 conditions without topcoat. Topcoat only needed for aesthetic purposes. Smooth surface and compatible with a wide range of topcoats, allowing the desired Aesthetic finish of the steel. Reduced application costs and Fast process time, combining high DFT/coat with a reduced total PFP thicknesses to apply. Protection achieved in less coats. One product for most common steel sections to reduce complexity in application and specification. It has been approved and 3rd party certified according to EN13381-8 and BS 476-21. It has ETA with CE mark and ApplusFire approvals. Can be applied up to 3-5 mm [118-196 mils] dry film thickness per coat (depending on the set up), thus providing the required protection in less coats. Optimized to maximize throughput and DFT/coat with plural feed application equipment. Application with single leg equipment also possible for touch ups / small areas. Solvent free / 100% solids, product has very low VOC. Environmental Product Declaration with third-party certification is ongoing (Type III EPD, acc. to ISO 14025, EN 15804). Product can contribute to EPD credits for LEED and BREEAM projects. Complies with EU Directive 2004/42/EC, The Paints Directive on the limitation of volatile organic compounds: subcategory i.
  • Recommended use
    As intumescent fire protection for structural steel in interior and exterior service conditions, up to Type X (EAD350402-00-1106 / EN 16623) and C5 conditions (ISO 12944-2). Suitable for I section beams, H columns, hollow sections and cellular beams. As a repair and touch-up coating for damaged areas of Hempafire Extreme 550.
  • Markets and application
    Styled Buttons

Market-leading epoxy PFP protection – reliable and versatile for any project.

Hempafire Extreme 550 is an advanced epoxy intumescent coating that delivers up to 4 hours of fire protection with up to 40% lower paint consumption. It enables easier application, reduced process times, and superior durability — even in harsh industrial areas of high humidity, aggressive atmospheres, and inshore areas with high salinity. Its high mechanical strength minimises touch-ups after transport, while its solvent-free formula ensures a safer working environment. Whether for in-shop or on-site use, it simplifies fire protection, lowers costs, and meets top industry certifications.

All in all, Hempafire Extreme 550 is the most efficient and reliable choice in the market, ensuring your assets stand the test of time even in extreme conditions.

Take your fire protection to the highest standards 

Extended durability
Provides beyond 25 years of protection even in challenging C5 conditions, ensuring long-term asset safety and compliance with ISO 12944-6 and EAD 350402-00-1106.
Reduced paint consumption
Greater efficiency with fewer layers and lower paint thickness. Achieve the same fire protection while using up to 40% less paint, which reduces layers, process time, and overall costs.
More sustainable solution
Lower the CO₂ footprint of steel protection with reduced paint consumption and low embedded carbon values, ensuring greater efficiency and sustainability.

The trusted partner for fire protection and specification support

Explore our complete range of fire protection solutions
With Hempafire Extreme 550, we now have a complete range within Hempel offers a complete range of reliable PFP solutions
designed to maximise sustainability and durability,  optimising material use while extending asset durability.

Proven performance, certified protection

Hempafire Extreme 550 has been rigorously tested both internally and externally to meet all key international fire protection standards, ensuring reliability and compliance for any project worldwide.

Certificates and approvals

  • Tested and approved for cellular beams
  • CE marked and approved up to Type X conditions
  • Approved and third-party certified by ApplusFire
  • Environmental Product Declaration (EPD) according to EN 15084 - Type III

Brochure

Download the Hempafire Extreme 550 brochure

Explore key figures, tests, and insights on how Hempafire Extreme 550 optimises steel protection with less paint and lasting durability.
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