HEMPEL – Hempafire Pro 400 Fast Dry Intumescent Coating for Steel

Hempafire Pro 400 – High-Performance Intumescent Coating for Structural Steel

Hempafire Pro 400 is a one-component, solvent-borne intumescent coating designed to deliver passive fire protection for structural steel exposed to cellulosic fires. Its physically drying formula provides excellent performance for both in-shop and on-site applications, making it a versatile solution for construction and industrial projects requiring R90 fire protection, with potential for up to R120 depending on project specifications.

Key Features and Benefits

• Certified fire protection for up to 120 minutes, tested to BS 476-21 and Applus+ Fire Safety Mark (APF-1825).

• Reduced paint consumption and fewer coats needed thanks to highly efficient loading levels.

• Fast application and drying times, improving productivity and project turnaround.

• Smooth, professional finish ideal for visible steelwork.

• Versatile performance – suitable for I-beams, H-columns, hollow sections, and cellular beams.

• Durable protection with up to 1600 microns DFT per coat, providing reliable coverage with fewer layers.

• Weather resistant for up to 12 months without a topcoat (under correct conditions).

• VOC-compliant formulation meeting EU Directive 2004/42/EC for reduced environmental impact.

Recommended Use

Designed for intumescent fire protection of structural steel in interior and exterior environments up to C4 conditions (ISO 12944-2).
Ideal for:

• Industrial, commercial, and infrastructure steel structures.

• Both new applications and touch-up or repair of freshly applied Hempafire Pro 400 coatings.

Technical Details

• Product Code: 43490

• Colour: White (10000)

• Finish: Flat

• Volume Solids: 75 ± 3%

• Specific Gravity: 1.3 kg/L

• Flash Point: 23°C

• VOC Content: 320–345 g/L (depending on region)

• Maximum DFT per coat: 1600 microns

Certifications and Compliance

• Applus+ Fire Safety Mark (APF-1825) – Certified up to 120 minutes fire resistance.

• BS 476-21 Approved – Fire resistance of structural steel.

• Complies with EU Directive 2004/42/EC (VOC limitations).

• CE Marked and third-party tested for quality and safety assurance.

Hempafire Pro 400 offers reliable, efficient, and certified fire protection for structural steel, combining durability, ease of application, and a smooth finish that meets the demands of modern construction projects.

For full application instructions, contact us on 01752 690997 or [email protected]

IMPORTANT INFORMATION ON PURCHASING OF PASSIVE FIRE PROTECTION PRODUCTS NOTICE:

The information displayed about the products on this website is to be used for guidance ONLY. We advise that all customers contact our technical department to obtain a free no obligation specification and quotation before purchasing goods directly from the website.

Products purchased directly from our website without specification will NOT qualify for certification.

Please be aware that any negligence caused by failure to obtain the relevant advice, or availment of our specification and estimation service, will absolve International Passive Fire Ltd from any liability should Passive Fire Protection Products prepared, or used, by the purchaser, or any other parties, result in damage to property or human life, or for any monetary costs incurred due to incorrect usage.