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 specifi cations 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