Sherwin Williams Macropoxy C123 - Formerly Leighs Epigrip C123

Part A: UN1263 (Class: 3, Pk Grp: III), Part B: UN3469 (Class: 3.8, Pk Grp: III)
A high solids 2 pack epoxy, pigmented with glass flakes and anti corrosives for use on steel. Network Rail Item 7.2.3. Highways Agency Item No.123
Available in 5 and 20 Litres
From £115.92 £96.60
In stock
Only %1 left
Product Description

Sherwin Williams Macropoxy C123 - Formerly Leighs Epigrip C123 is a high solids 2 pack epoxy, pigmented with glass flakes and anti corrosives for use on steel.

Best Uses

Macropoxy C123 is best suited for anti-corrosive protection of blast cleaned steel such as steel structures, bridges and infrastructure in aggressive atmospheric conditions. Endorsed for Network Rail Item 7.2.3 and Highways Agency Item No.123.


Blast clean to Sa2½ ( ISO 8501-1:2007 ). Average surface profile in the range 50-100 microns. Ensure surfaces to be coated are clean, dry and free from all surface contamination.

Macropoxy L574 or Macropoxy M111 should be specified where there is a requirement for a blast primer. Recommended application method via airless spray or brush for stripe coat or touch up only.

Recommended cleanser / thinner Sherwin Williams No2. Indefinitely self overcoatable provided the coating has been suitably cleaned. For optimum intercoat adhesion with other epoxy topcoats, overcoating should occur within 14 days. Where atmospheric exposure is required, overcoat with Acrolon C137V2 within 7 days at a minimum dft of 50 microns or in the case of Acrolon C750V2 overcoat within 4 days.

Technical Details


  • Network Rail Item 7.2.3
  • Highways Agency Item No. 123
  • Norsok M-501 System 7A (Pre Qualified)

Technical Info

Components: Two Pack
Type: Epoxy
Finish: Glass Flake
Stock Colours: Light Grey, Off White, Red Oxide
Tintable: Limited range. Please note, bespoke tints are non refundable / exchangeable
VOC Content: 131 gms/litre
Volume Solids: 83±4%
Suitable Substrates: Steel
Application Method: Brush, Airless Spray
Theoretical Coverage: 3.3m2
Wet Film Thickness (WFT): 301 microns
Dry Film Thickness (DFT): 250 microns
Induction Time: -
Pot Life: 1hour at 23°C
Touch Dry: 2½ hours at 23°C
Overcoatable: 2½ hours at 23°C
To Handle: 12 hours at 23°C
Cleaner / Thinner: Thinner No2
Shelf Life: 2 years from date of production unopened or 'use by' date where specified
Packaging: Available in 5 Litres and 20 Litres

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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