*Sherwin Williams Firetex FX13381-1 SB Intumescent

This product is now discontinued. See Sherwin Williams FX1003 as a potential alternative.
In stock
Product Description

Please note, this product is now discontinued. See Sherwin Williams FX1003 as a potential alternative.

Sherwin Williams Firetex FX13381-1 is a single pack thin film intumescent coating to provide 120 minute of fire resistance to structural steel.

Best Uses

FIRETEX FX13381/1 is designed for site application by airless spray, to provide fire resistance for up to 120 minutes on structural steel. For use without topcoat in dry internal areas - category Z2 as defined in ETAG 018-2. For use with topcoat in internal areas with high humidity, semi exposed areas and in fully exposed areas - categories Z1, X and Y as defined in ETAG 018-2.

FIRETEX FX13381/1 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.


Recommended application via airless spray. Recommended thinner no2. For certain dry, internal situations where the final colour/ appearance is not critical, then FIRETEX FX13381/1 may remain un-topcoated. For externally exposed steelwork 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, Acrolon C137V2 or Acrolon C237 as appropriate. FIRETEX FX13381/1 is designed for use over a suitably prepared and primed substrate. Ensure surfaces to be coated are clean, dry and free from all surface contamination. Under certain circumstances it may be possible to apply FIRETEX FX13381/1 directly to steel blast cleaned to a minimum standard of Sa2½ BS EN ISO 8501-1:2007, surface profile in the range 50-100 microns.

IMPORTANT INTUMESCENT PRODUCT NOTE: Always contact Promain’s technical team prior to purchase to obtain a tailored project specification and the advice necessary. The information displayed on this website should only be used as a guide. Promain UK Limited will not be held liable for any resulting damage to property, human life or monetary costs incurred due to incorrect specification, preparation, application or maintenance that has occurred due to negligence by either the purchaser or applicator. This includes your failure to have contacted us to obtain the relevant advice/specification.

Technical Details


  • Tested and assessed to EN13381-8:2010
  • Tested to BS EN 13823:2002

Technical Info

Components: Single Pack
Type: Solvent Based Intumescent
Finish: -
Stock Colours: White
Tintable: No
VOC Content: 286 gms/litre
Volume Solids: 75± 4%
Suitable Substrates: Structural Steel
Application Method: Airless Spray
Theoretical Coverage: See separate sheet of FX13381/1 loading requirements.
Wet Film Thickness (WFT): 1867 microns
Dry Film Thickness (DFT): 1400 microns
Induction Time: -
Pot Life: -
Touch Dry: 30 minutes at 15°C
Overcoatable: 4 hours at 15°C
Fully Cured: -
Cleaner / Thinner: Cleanser/Thinner: No 2 (for thinning)
Shelf Life: 2 years from date of production unopened or 'use by' date where specified
Packaging: Available in 20 Litres

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