Ensure the surface has thoroughly dried prior to application.

Pre-painted metal surfaces:
Scrape off all loose and flaking paint. Sand all surfaces to a flat finish. Dust off. If previously painted surface is in good condition than no primer is required. Treat any bare metal as below.

Aged or lightly rusted surfaces:
Remove any rust by scraping, sanding or wire brushing. Wipe surface with Metalshield® Brush Thinner to remove any residual grease, oils and dirt. Once dry, apply one coat of Metalshield® Etch Primer Spraypak.

New bare steel and wrought iron:
Wipe surface with Metalshield® Brush Thinner to remove any residual grease, oils and dirt. For maximum protection apply 1 coat of Metalshield® Etch Primer Spraypak first. Galvanised iron and ZINCALUME®: Clean surface with sugar soap and a Scotch-Brite® Pad to remove any grease, oils and dirt. Rinse with clean water. Once dry, apply one coat of Metalshield®.

Before spraying: Shake can for at least three minutes before use and regularly during use. Lower temperatures and high humidity will slow the drying and affect the gloss level. Avoid spraying when air or surface temperature is below 10°C or above 30°C.

Spray application: Hold can upright 15 to 25cm from the surface. To ensure surface compatibility, test spray on an inconspicuous area. Spray with smooth, even strokes parallel to the surface. Apply with several light mist coats rather than one heavy coat, which can cause running and sagging.
Note: Dulux Duramax Metal Primer can be wet sanded after two hours.

After spraying: Prevent blocking by turning the can upside down and spraying until clear gas emerges. Also wipe front of nozzle clean. Clean up overspray while it is still wet with mineral turpentine.