• Sherwin-Williams Epigrip C400W

Sherwin-Williams Macropoxy C400W


We no longer stock this product, but can recommend Sherwin Williams Fast-Clad 7220 as a great alternative.

Product not available
This Product has been Discontinued


Sherwin-Williams Macropoxy C400W (formerly known as Epigrip C400W) is a multi-functional epoxy zinc phosphate coating specified for use as a primer on blast cleaned structural steel for internal and external environments. Sherwin-Williams Macropoxy C400W may also be used as a high build intermediate coat as well as the final coat where a low sheen industrial and functional finish is required (not for immersion service).

Recommended Use

Specified for use as a primer for structural steel on blast cleaned steel for internal and external environments, it may also be used as a high build intermediate coat as well as the final coat where a low sheen industrial and functional finish is required.

Not for immersion service.

Where good colour and gloss retention is required in an external environment, or a full decorative finish is required in an internal environment, one of our topcoats designed specifically for this role should be chosen. A selection of available topcoats is listed in this data sheet under Recommended Topcoats.

C400W may be applied between 75 and 275 microns DFT in one coat depending on specification requirement. 

Recommended Topcoats

Indefinitely overcoatable with epoxy systems provided the surfaces to be coated have been suitably cleaned. Where a high degree of gloss and colour retention is required overcoat with Acrolon C137V2, Acrolon C237, Acrolon 1850 and Acrolon 7300 within 7 days at a minimum dft of 50 microns or in the case of Acrolon C750V2 overcoat within 4 days. These overcoating times refer to achievement of optimum adhesion @ 23°C and will vary with temperature.

Application Conditions & Overcoating

This material should preferably be applied at temperatures in excess of 5oC. Relative humidity should not exceed 90% and in these conditions good ventilation is essential.

Substrate temperature shall be at least 3oC above the dew point and always above 0°C.

In order to achieve optimum water and chemical resistance, temperature needs to be maintained above 5oC during curing.

Product Details

Data sheet

Water / Solvent Based
For Use On
Application Method
Airless Spray, Spray, Brush, Roller
Standard / Ready Mixed
Single, Two or Three Pack
Pack Size
5L, 20L
9.2m² per litre
Touch Dry
45 mins
UN Number (Activator)
UN Number (Base)

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 keith watson on 2020-04-09 08:41:09

Please can you confirm the likely thickness of paint if applied with brush/roller. Thanks

Answer from Rawlins’ Technical Team: 

Practical application rates for brush in microns are dry - 65 wet - 94.

Practical application rates for roller in microns are dry - 60 wet - 87.

Question about the product

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Sherwin-Williams Macropoxy C400W 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