Sherwin-Williams Firetex FX1003


    Sherwin-Williams Firetex FX1003 is a single pack, thin film intumescent coating, designed for site application by airless spray, to provide fire resistance for up to 120 minutes on structural steel.

    £311.10(ex. VAT)
    £373.32 (inc. VAT)
    Please choose your colour
    In Stock and Available for Delivery (See Delivery Options Below)


    After appropriate drying, Firetex FX1003 specifications can be exposed to the weather for up to 6 months provided that the specific use does not lead to ponding water due to rainfall, condensation or other site circumstances.

    Sherwin-Williams Firetex FX1003 can resist normal weather conditions for up to 6 months without topcoat provided it has had appropriate drying prior to exposure. Once an approved topcoat has been applied as appropriate to the prevailing conditions, then durability will be substantially enhanced. If the specific use or storage could lead to prolonged contact with water due to rainfall, condensation, or other site/transportation/storage circumstances, then a recommended topcoat must be used to prevent damage to the basecoat.

    Please note that this product should not be used without first receiving an application schedule from our Technical Department. Please download and complete the 'FIRETEX Intumescent Support Request Form' and return by email to [email protected]

    If you have any questions regarding this process consult our technical department on 0113 2455450 (option 2).


    Certifire Approved – Certificate CF5077

    This product has been assessed in accordance with the Criteria of Acceptability given in the ASFP/BCF “Industry Guidance Document”. This product has been tested and assessed in accordance with the ASFP fi retesting protocol for cellular beam protection. See Section 6.3 from ASFP “Yellow Book” 4th Edition.

    Recommended Primers

    Several primers have been approved for use under Sherwin-Williams Firetex FX1003. For more information please consult our technical team.

    Recommended Topcoats

    For certain dry, internal situations where the final colour/ appearance is not critical, then Firetex FX1003 may remain un-topcoated.

    For externally exposed steelwork up to C4 and severe internal environments Acrolon C137V2 or Acrolon C237 must be used as a topcoat.

    For other internal environments where a topcoat is required then Firetex M71V2 or Sher-Cryl M770 should be used. In all instances for subsequent re-decoration, use Firetex M71V2, Sher-Cryl M770, Acrolon C137V2 or Acrolon C237 as appropriate. 

    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

    For Use By
    Industrial Use
    Interior / Exterior Use
    Interior & Exterior
    Brush, Spray
    Touch Dry
    30 minutes
    Base Type
    Suitable For Use On
    Structural Steel
    Application Method
    Application Method
    Product Type
    Product Range
    Colour Family
    Fire Rating
    60 Minutes
    Fire Rating
    120 Minutes
    Fire Rating
    30 Minutes
    Fire Rating
    90 Minutes
    Site Application

    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.

    questions david simpson on 2021-03-06 17:23:37

    can Firetex fx1003 be applied over steelwork with a existing coat of Acrolon C137V2 on it ?

    Answer from Rawlins’ Technical Team: 

    No this can only be applied to a compatible primer, please contact our technical team and we can assist with a specification.

    questions andrew melvin on 2020-12-09 15:52:47

    what is the m2 cover on the firetex fx1003 per litre

    Answer from Rawlins’ Technical Team: 

    There is no coverage rate per m² for this product.

    The Intumescent must be applied at the specified WFT.

    If you require assistance with a specification please contact our Technical Team on 0113 2545450 option 2.

    questions natalie on 2019-09-02 10:58:37

    Can I spray an eggshell paint over the FX1003 as a internal decorative ceiling colour in an industrial unit where only smoke detection is required and no sprinklers? Thanks

    Answer from Rawlins’ Technical Team: 

    Sherwin-Williams Firetex FX1003 should only be over coated with an approved Sherwin-Williams topcoat. Assuming an internal C1/C2 environment, as an example Sherwin-Williams Firetex M71V2 could be used over Sherwin-Williams Firetex FX1003 and provides a decorative sheen finish topcoat in almost any RAL or BS colour. 

    questions Clive Rowe on 2019-07-17 11:54:58

    What are the coverages recommended to attain 30 minutes fire rating on structural steel for FX1003?

    Answer from Rawlins’ Technical Team: 

    In order to answer this question we would need you to provide our technical team ([email protected]) with as much of the following information as possible;

    • Level of fire protection required (i.e. 30, 60, 90min, etc.)
    • Each steel section dimension (i.e. 254x146x37 UB)
    • Quantity and length of each section (or overall meterage for each section)
    • Orientation (horizontal or vertical)
    • Number of sides to be painted (all sides, 3 sides, 1 flange, etc.)
    • Environment (internal, external, car park, chemical exposure, etc.)
    • Application on site or in shop

    Alternatively you can just forward us drawings, fabrication/cutting lists and we'll extract the information from them but in that instance we'd need some guidance as to what to allow for i.e. all steels on first floor, etc.

    questions eric french on 2019-01-21 11:08:58

    what are the appropriate thinners/cleaner for FX1003 and C137V2 ?

    Answer from Rawlins’ Technical Team: 

    Sherwin-Williams recommend Firetex FX1003 is thinned/cleaned with Sherwin-Williams Cleanser/Thinner No.2Sherwin-Williams Acrolon C137V2 is recommended to be thinned with Sherwin-Williams Cleanser/Thinner No.15 and cleaned with Sherwin-Williams Cleanser/Thinner No.5.


    Question about the product

    * Required fields


    Sherwin-Williams Firetex FX1003 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

    You might also like

    Sherwin-Williams Cleanser/Thinner No.2

    Sherwin-Williams Cleanser/Thinner No.2 is a specially formulated blend of solvents designed to mix with its compatible Sherwin-Williams products to create an optimal consistency for application whether it be for Brush, Roller or Spray. It can also be used for cleaning of surfaces and application equipment. More Information Delivery Info

    Price £37.25 (ex. VAT)
    In Stock and Available for Delivery

    Sherwin-Williams Acrolon C137V2

    A high performance, fast drying acrylic urethane gloss finish in 450+ colours for use where long term exterior gloss and colour retention characteristics are required.Suitable for use as a final coat(s) in conjunction with epoxy or polyurethane based protective systems for new construction or maintenance purposes Please note: Also...

    Price £83.77 (ex. VAT)
    In Stock and Available for Delivery

    Sherwin-Williams Acrolon C237

    Sherwin-Williams Acrolon C237 (formerly Resistex C237) is a high performance fast drying acrylic urethane sheen finish for use where long term exterior colour retention characteristics are required. It is suitable for use as final coat or coats in conjunction with epoxy or polyurethane based protective systems for new construction or...

    Price £120.77 (ex. VAT)
    In Stock and Available for Delivery

    Sherwin-Williams Firetex M71V2

    Sherwin-Williams Firetex M71V2 is a sheen decorative topcoat for the Firetex range of single pack intumescent coatings and also provides protection when used in internal semi-controlled conditions where condensation may occur (Category C2 as defined in ISO 12944-2).Available in 450+ colours Please note: Also available in Ready Mixed...

    Price £79.88 (ex. VAT)
    In Stock and Available for Delivery

    Sherwin-Williams Sher-Cryl M770

    Sherwin-Williams Sher-Cryl M770 (formerly known as Envirogard M770) is a water based quick drying gloss finish or sealercoat for the entire Sherwin-Williams FX product range.Also available in 500+ RAL and British Standard coloursPlease see Sherwin-Williams Sher-Cryl M770 - Special ColoursPlease note: This product is subject to a...

    Price £119.16 (ex. VAT)
    In Stock and Available for Delivery

    Surface Preparation Kits for Steel

    These surface preparation kits for steel have been created to help provide customers with an easily accessible bundle of tools to aid in the preparation of steel surfaces in accordance with ISO 8501-1 (St2/3) and SSPC (SP 2/3). Please click here for important information about these kits. Kit Contents: SET 1 (Hand Tools)1 x Rust-Oleum...

    Price £17.22 (ex. VAT)
    In Stock and Available for Delivery