This product is now discontinued. Please see Sherwin Williams Fast Clad 7220 as a potential alternative.
Sherwin Williams Macropoxy C400W is a multifunctional epoxy zinc phosphate primer / intermediate coating for the protection of structural steel in both internal and external environments.
Macropoxy C400W is 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. C400W may be applied between 75 and 275 microns DFT in one coat depending on specification requirement. As many projects will differ in terms of client requirements and exposure environments, detailed project specifications are available from Sherwin-Williams separately.
Recommended application via airless spray, conventional spray, brush or roller. Recommended thinner no2, use no9 or no13 for cleaning. 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.
- Pot Life: 2 hours at 5°c, 45 minutes at 23°C
- Dry Film Thickness: 75 microns
- Theoretical Coverage: 9.2m2 per litre
- Available in a limited colour range including MIO shades
- Available in 5 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.