Dy-Mark Zinc Guard Etch Primer 325g

Dy-Mark Zinc Guard Etch Primer 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 strong adhesion
• Creates a tough barrier that helps stop rust before it starts
• Touch dry in 10 minutes, ready to recoat after 2 hours for same-day turnarounds
• Clean spray pattern with an adjustable fan nozzle for even coverage and minimal overspray
• Australian made by Dy-Mark in a convenient 325 g aerosol

Specifications

• Pack size: 325 g aerosol
• Colours: matt grey, matt black
• Coverage: up to 2 m2 per can
• Touch dry: 10 minutes at 25C
• Recoat window: after 2 hours
• Ideal application temperature: 10-35C
• Finish: matt
• VOC: below 680 g/L
• Shelf life: 4 years unopened

Simple Three-Step Application

Prepare the surface by removing rust, oil and salts, abrading shiny metal and wiping with acetone. Shake the can vigorously for 45 seconds after the ball rattles, hold it 20-25 cm from the surface and apply several light coats until the colour is uniform. After a minimum of two hours, finish with Dy-Mark Zinc Guard Quick Dry or another compatible top coat for colour and gloss.

Applications

• Etch-priming aluminium flashings and gutters before top-coating
• Preparing galvanised iron, stainless and ZINCALUME surfaces for paint
• Steel gates, brass fittings and other difficult-to-coat metals
• Spot repairs where a quick, corrosion-resistant key coat is needed

What You Need To Complete The Job

Finish the primed metal with Dy-Mark Zinc Guard Silver Zinc for corrosion protection, and touch up scratches with Bond Cover Touch-Up. For a bulk liquid metal primer use RGL Metal Primer. Browse the full Paint range for the complete system.

Frequently Asked Questions

What metals does it etch?

It etches aluminium, galvanised iron, stainless steel, ZINCALUME, copper and brass. That covers the metals ordinary primers struggle to hold onto, especially the shiny or zinc-coated ones.

Why use an etch primer?

Smooth and galvanised metals give paint a poor surface to grip. The etch primer bites into the metal, seals the pores and lays down a corrosion-resistant key coat so the topcoat bonds and lasts.

How fast can I top-coat it?

It is touch dry in 10 minutes and ready to recoat after a minimum of 2 hours, so a small metal job can be primed and finished the same day.

Which finish is this pack?

This listing is code 230732001 in matt grey, the general-purpose shade for most metal substrates. A matt black version is available for components that need a darker base.

Can I order for delivery or pickup?

Yes. You can order online and choose Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. Delivery windows depend on your postcode, and we send a confirmation once your order is ready. For any questions call (03) 93941400 or email orders@singhroofingsupplies.com.au.