Sherwin-Williams Kem-Kromik 255


Kem-Kromik M255 (formerly known as Sherwin-Williams M255 or Leighs M255) is a single pack quick drying acrylic modified alkyd anti-corrosive protective finish. 

  • Available in 400+ colours, including RAL and BS

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  • 250 char. max
Colour Group
£94.55(ex. VAT)
£113.46 (inc. VAT)
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Available for Delivery (See Delivery Options Below)


Kem-Kromik M255 (formerly known as Sherwin-Williams M255 or Leighs M255) is a single pack quick drying acrylic modified alkyd anti-corrosive protective finish, used as a single coat shop applied protective finish for structural steel that will not normally require further site coats. Suitable for use as a single coat system on internal or external steel, applying by airless spray and using a brush only for small areas or touching up.

Recommended Primers/Topcoats

Not normally required but may be overcoated with a wide range of materials. Please refer to our technical team for additional information.

Surface Preparation

Blast clean to Sa2½ BS EN ISO 8501-1:2007. Average surface profi le in the range 50-75 microns. Ensure surfaces to be coated are clean, dry and free from all surface contamination.

Typical Thickness and Coverage

Dry film thickness

100 microns

Wet film thickness

185 microns

Theoretical coverage

5.4 m² /ltr*

*This figure makes no allowance for surface profile, uneven application, overspray or losses in containers and equipment. Film thickness will vary depending on actual use and specification.

Practical Application Rates

Microns per coat

Airless Spray Brush
Dry 100* 100
Wet 185 185

* Maximum sag tolerance typically 231μm wet (125μm dry) by airless spray

Average Drying Times

5°C 15°C 23°C
To touch 90 minutes 1 hour 30 minutes
To handle 30 hours 24 hours 8 hours

These figures are given as a guide only. Factors such as air movement and humidity must also be considered.

Product Details

Data sheet

For Use On
Application Method
Brush, Spray
Fully Tintable
Single, Two or Three Pack
Pack Size
5L, 20L
Brush, Spray
5.4m² per litre
Touch Dry
30 minutes
UN Number

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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