Dy-Mark Zinc Guard Etch Primer 325 g – superior key coat for tricky metals

Dy-Mark Zinc Guard Etch Primer 325 g is a fast-dry aerosol formulated to etch and bond to metals that ordinary primers struggle with. Whether you are top-coating aluminium flashings, galvanised iron gutters, new steel gates or brass fittings, this matt etch primer bites into the surface, seals pores and lays down a corrosion-resistant foundation for any Zinc Guard enamel or other quality finish coat. The result is longer paint life, better colour hold and fewer callbacks.

Why roofing professionals choose it

Etches aluminium, galvanised iron, stainless, ZINCALUME, copper and brass for unbeatable adhesion.
Creates a tough barrier that helps stop rust before it starts.
Touch dry in 10 minutes, ready to recoat after 2 hours – ideal for same-day turnarounds.
Clean spray pattern with adjustable fan nozzle for even coverage and minimal overspray.
Australian made by Dy-Mark and packaged in a convenient 325 g aerosol for grab-and-go efficiency.

Technical details

Property	Data
Pack size	325 g aerosol
Colours	Matt Grey, Matt Black
Coverage	Up to 2 m² per can*
Touch dry	10 min at 25 °C
Recoat window	After 2 h
Ideal application temperature	10 – 35 °C
Finish	Matt
VOC	< 680 g/L
Shelf life	4 years (unopened)

*Coverage varies with surface profile and spray technique.

Simple three-step application

Prepare – remove rust, oil and salts; abrade shiny metal and wipe with acetone.
Prime – shake vigorously for 45 seconds after the ball rattles, hold 20-25 cm from the surface and apply several light coats until colour is uniform.
Top-coat – after a minimum of two hours, finish with Dy-Mark Zinc Guard Quick Dry or other compatible top coat for colour and gloss.

Pack variations stocked by Singh Roofing Supplies

Code	Colour	Finish	Typical use
230732001	Grey	Matt	General metal substrates
230732002	Black	Matt	Components requiring a darker base

With rapid drying, outstanding adhesion and reliable anti-corrosion performance, Dy-Mark Zinc Guard Etch Primer 325 g is the indispensable first step towards a flawless, long-lasting paint system on any difficult-to-coat metal surface. Keep a couple of cans in the van and tackle every flashing, bracket and gutter with confidence.