Nullifire SC801 On-Site Water-Based Intumescent Basecoat
  • Nullifire SC801 On-Site Water-Based Intumescent Basecoat

Nullifire SC801 On-Site Water-Based Intumescent Basecoat


Nullifire SC801 On-Site Water-Based Intumescent Basecoat is a water-based, white, thin film intumescent coating for the protection of internal structural steelwork, providing up to 120 minutes fire resistance.

Please Note: We strongly recommend Tricomb Plastic Wet Film Gauges are used to help ensure correct film thicknesses are achieved during application

£204.34(ex. VAT)
£245.21 (inc. VAT)
Please choose your colour
In Stock and Available for Delivery (See Delivery Options Below)


Nullifire SC801 On-Site Water-Based Intumescent Basecoat SC801-120 can be applied to a smooth matt finish. A compatible top-seal can be applied if a decorative finish is required. 

Features & Benefits

  • Water based intumescent coating suitable for internal use on structural steelwork for up to 120 minute fire resistance
  • Easier to apply product for greater efficency on site with improved smooth matt finish
  • Compatible with a full range of Nullifire primers and top seals
  • Very low VOC

Surface Preparation & Priming

  • SC801-120 should be applied onto a clean, undamaged, dry and primed steel surface.
  • Certain types of primers can cause char adhesion problems in a fire. In particular, thermoplastic primers must be avoided.
  • Nullifire recommend and have tested PM015, PM019 and PM020 primers- see website for details.
  • Nullifire have carried out compatibility testing on a wide range of primers. Contact our technical team for details on compatibility.
  • SC801-120 should not be applied directly to galvanised surfaces or zinc rich primer.
  • The primer must be applied in accordance with the manufacturer’s instructions.
  • Nullifire should be consulted for technical advice when zinc rich primers or the overcoating of existing paints are specified for use.

Application Conditions

  • Nullifire SC801-120 is recommended for application and use on dry protected structural steel only.
  • If the basecoat is allowed to get wet, it is likely to be damaged – blistering and wrinkling may occur.
  • SC801-120 should only be applied when the air and steel temperatures are above 5°C. Relative humidity should be below 80% for successful application. Steel surface temperature should be a minimum of 3°C above the dew point.
  • Ensure the steel is dry and free from contact with rain or condensation during the application and drying of SC801-120.

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.

Product Details

Data sheet

Interior / Exterior Use
Interior Use
Single, Two or Three Pack
Brush, Roller, Spray
2,050 g/m² based on an applied 1.00 mm dry lm thickness
Base Type
Suitable For Use On
Structural Steel
Application Method
Application Method
Application Method
Product Type
Fastest Delivery
Next Working Day
Colour Family

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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Nullifire SC801 On-Site Water-Based Intumescent Basecoat is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT

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