Dy-Mark Zinc Guard Silver Zinc 400g – premium cold galvanising spray for superior corrosion protection

Dy-Mark Zinc Guard Silver Zinc 400g is a high-performance, fast-drying cold galvanising spray designed to provide an exceptional protective coating on steel and iron surfaces. Infused with pure zinc particles, this silver zinc aerosol forms a galvanic barrier that combats rust and corrosion effectively, replicating the protection of hot-dip galvanising but in a convenient spray can.

Ideal for roofing contractors, metal fabricators, and maintenance professionals, Zinc Guard Silver Zinc offers long-lasting durability for outdoor metal structures, repairs, and touch-ups. It bonds to bare or prepared metals and withstands harsh weather conditions, helping extend the life of metal components such as gutters, flashings, structural steel, and fencing.

Key features and benefits

Provides 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, ideal for coastal and industrial environments.
Aerosol format enables easy application on small or hard-to-reach areas with controlled spray pattern.
Compatible as a primer under most topcoats for enhanced durability and finish options.

Technical specifications

Property	Data
Pack size	400 g aerosol
Colour	Silver metallic
Dry time	Touch dry: 15 mins
Recoat time	2 hours
Coverage	Approx. 2 m² per can*
Application temp.	10–35 °C
Finish	Metallic silver, matt
VOC	< 650 g/L
Shelf life	3 years unopened

*Coverage depends on surface texture and thickness applied.

Application guide

Surface preparation – Remove loose rust, grease, dirt, and contaminants. For best results, clean surface with a wire brush and degrease.
Shake well – Shake the can vigorously for at least one minute to evenly disperse zinc particles.
Spray – Hold the can 20–30 cm from the surface and apply in even light coats, allowing each to dry before the next to avoid runs.
Topcoat (optional) – Once dry, finish with compatible topcoats for enhanced protection and aesthetics.

Variations available at Singh Roofing Supplies

Product Code	Finish	Usage
230734001	Silver Zinc	Premium galvanising spray for metal protection

Durability, ease of use, and professional-grade protection make Dy-Mark Zinc Guard Silver Zinc 400g an essential product for any roofing or metal maintenance project. Its cold galvanising technology ensures that your metal assets remain rust-free and visually appealing for years, even in demanding environments.