Dy-Mark Zinc Guard Silver Zinc 400g

Dy-Mark Zinc Guard Silver Zinc is a high-performance, fast-drying cold galvanising spray that provides an exceptional protective coating on steel and iron surfaces. It is infused with pure zinc particles that form a galvanic barrier against rust and corrosion, replicating the protection of hot-dip galvanising but in a convenient spray can. It is made for roofing contractors, metal fabricators and maintenance crews working on gutters, flashings, structural steel and fencing.

Key Features and Benefits

• Cathodic protection by acting as a sacrificial anode against rust
• Fast drying with a smooth, metallic silver finish that resists chalking and cracking
• Excellent adhesion on bare metal, galvanised iron, zincalume, stainless steel and previously painted surfaces
• Resists weathering, salt spray and industrial pollution for coastal and industrial use
• Aerosol format for easy application on small or hard-to-reach areas
• Compatible as a primer under most topcoats

Specifications

• Pack size: 400 g aerosol
• Colour: silver metallic
• Dry time: touch dry in 15 minutes
• Recoat time: 2 hours
• Coverage: approximately 2 m2 per can
• Application temperature: 10-35C
• Finish: metallic silver, matt
• VOC: below 650 g/L
• Shelf life: 3 years unopened

Application Guide

Remove loose rust, grease, dirt and contaminants, and clean the surface with a wire brush and degreaser for best results. Shake the can vigorously for at least one minute to disperse the zinc particles, then hold it 20-30 cm from the surface and apply in even light coats, allowing each to dry before the next to avoid runs. Once dry, finish with compatible topcoats for enhanced protection and aesthetics.

Applications

• Touch-up and repair of gutters, flashings and downpipes
• Protecting structural steel, brackets and fencing
• Repairing scratched or damaged galvanised coatings
• Marine and industrial areas needing salt-spray resistance

What You Need To Complete The Job

Etch-prime the bare metal first with Zinc Guard Etch Primer, then top-coat with this Silver Zinc spray, 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 is cold galvanising?

It is a zinc-rich coating applied cold from a spray can that provides galvanic protection like hot-dip galvanising. The zinc particles act as a sacrificial anode, so the coating corrodes instead of the steel beneath it.

Where should I use Silver Zinc?

Use it on steel and iron surfaces that need corrosion protection, such as gutters, flashings, structural steel, brackets and fencing, especially in coastal and industrial environments.

Do I need a primer first?

For best results on bare metal, etch-prime first with Zinc Guard Etch Primer, then apply Silver Zinc. On already-galvanised or previously painted surfaces in good condition, it can be applied directly after cleaning.

How fast does it dry?

It is touch dry in about 15 minutes and ready to recoat after 2 hours, so a repair can be completed quickly.

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.