RLA Zinc Primer is a one-pack, zinc-rich epoxy primer with sacrificial zinc pigment for long-term protection of external steel surfaces against rust and corrosion. It can be used as a finished coat or top coated with suitable decorative finishes.
RLA Zinc Primer provides a highly durable, matte grey protective finish with outstanding adhesion properties. Its dry film contains 85% zinc and is suitable for harsh environments and severe corrosion-inducing conditions. Uses include roofs, handrails and balustrading, gates, wrought iron, welding touch-ups, and touch-ups to galvanised iron and Zincalume.
Surfaces should be free of rust, scale, dirt, dust, oils, grease, existing coatings and loose particles. Remove rust by grinding, sanding, grit blasting or wire brushing, treat remaining rust with a suitable deoxidiser or chemical rust remover, and clean the surface with a solvent degreaser.
Stir well before use. Apply directly to the bare, prepared metal surface by brush, roller or spray, ensuring full coverage. For brush and roller application, use the product neat. For spray application, it can be thinned 30–40% with mineral turps and applied with a conventional spray gun at 350–400 kPa. After thinning, occasionally shake the spray-gun contents to reincorporate settled zinc pigments.
It is designed to protect external steel surfaces against rust and corrosion. Uses include roofs, handrails and balustrading, gates, wrought iron, welding touch-ups, and touch-ups to galvanised iron and Zincalume.
Yes. It can be used as a finished coat or top coated with suitable decorative finishes.
For a standalone protective coating, apply 2–4 coats to form a total dry film thickness of 75 microns. When top coating with decorative finishes, apply a minimum of 2 coats at a total dry film thickness of 25 microns.
It is touch dry in 30 minutes at 23°C and 50% RH, can be recoated after 4 hours and top coated after 24 hours. Drying times may vary with ambient and surface temperatures and humidity.
No. The product must not be applied over rust converters or any other coating; it is applied directly to bare, prepared metal.
| Application | Why it fits |
|---|---|
| Roofs | Provides long-term protection to external steel surfaces against rust and corrosion. |
| Handrails and balustrading | Provides a highly durable finish with outstanding adhesion properties. |
| Gates and wrought iron | Suitable for harsh environments and severe corrosion-inducing conditions. |
| Galvanised iron and Zincalume touch-ups | Specifically listed for touch-up applications. |
| Welding touch-ups | Specifically listed for welding touch-up applications. |
Dry times: Touch dry in 30 minutes at 23°C and 50% RH, recoat after 4 hours and top coat after 24 hours. Drying times may vary with ambient and surface temperatures and humidity.
| Property | Value |
|---|---|
| Product Type | One pack, zinc rich epoxy primer |
| Form | Thin liquid |
| Colour | Grey |
| Finish | Matte |
| Zinc Content | 85% of dry film |
| VOC Content | <250grams/litre |
| Container Size | 1litre |
| Application Methods | Brush, roller or spray |
| Spray Thinning | 30-40% with mineral turps |
| Spray Air Pressure | 350-400 kPa |
| Standalone Protective Coating | 2-4 coats to form a total dry film thickness of 75 microns |
| Decorative Topcoat Preparation | Minimum 2 coats at total dry film thickness 25 microns |
| Coverage At 75 Microns | 1litre/5.5m² |
| Coverage At 50 Microns | 1litre/8.2m² |
| Coverage At 25 Microns | 1litre/16.5m² |
| Touch Dry | 30 minutes @ 23°C, 50% RH |
| Recoat | 4 hours |
| Top Coat | 24 hours |
| Application Temperature | Above 10°C and below 30°C ambient temperature |
| Shelf Life | 12 months when stored in original unopened packaging |
Here are some common examples on where RLA Zinc Primer used by our customers.
