Würth
Würth Zinc Spray
Würth Zinc Spray
Key Features
- Provides long-term corrosion protection and repair for metallic surfaces.
- Active metal protection -coating continues to protect even with minor surface damage.
- Delivers over 300 hours of salt spray resistance (DIN EN ISO 9227).
- Excellent adhesion to bare and zinc-plated metals.
- Spot-weldable for use in automotive and industrial applications.
- High zinc content: 80% in the dry film.
- Temperature resistant up to 300°C.
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Description
High-Performance Zinc-Rich Coating
Würth Zinc Spray is a zinc-rich acrylic resin coating designed for the long-term protection, repair, and visual enhancement of metallic surfaces. Containing 80% zinc in the dry film, it provides strong cathodic protection to steel, preventing rust formation even when the surface is scratched or exposed to harsh conditions.
Corrosion Protection and Resistance
The coating has been tested to deliver more than 300 hours of salt spray resistance (DIN EN ISO 9227), ensuring reliable performance in demanding industrial and automotive environments.
Adhesion and Weldability
Würth Zinc Spray demonstrates excellent adhesion on bare steel and zinc-plated surfaces. The coating is also spot-weldable, making it suitable for use during fabrication and repair processes.
Limitations
This product is not suitable as a primer for PU, MS polymer, or hybrid sealing compounds, and it should not be painted over with other paints unless preliminary testing confirms compatibility.
Technical Information
Specifications
Contents: 400 ml
Chemical Basis: Acrylic resin
Colour: Silver grey
Zinc Content in Dry Film: 80 %
Coating Thickness: 40 µm
Dry Layer Thickness (first pass): 3.5 µm
Density: (not provided) at 20 °C
Spraying Distance: Standard aerosol spray distance (approx. 20–30 cm)
Dust-Drying Time: 10 min (at 20 °C)
Minimum Curing Time: 24 h (at 20 °C)
Salt Spray Resistance: 300 h (DIN EN ISO 9227)
Cross-Cut Test: MAN 0–1 (ISO 2409)
Temperature Resistance (max.): 300 °C
Shelf Life: 36 months from production (stored at 5–30 °C, max. 60% RH)
Adhesion Substrates: Ferrous metals, zinc-plated surfaces
Recoatable/Paintable: Conditional, preliminary testing required
Spot-Weldable: Yes
Documents
Application Instructions
- Ensure surfaces are clean, dry, and free from rust, dust, grease, and old coatings.
- Shake the can vigorously before use.
- Maintain an application temperature of 15-25°C.
- Spray evenly at the recommended distance, applying in thin coats.
- Allow approx. 10 minutes dust-dry time at 20°C before handling.
- Minimum curing time: 24 hours at 20°C for full hardening.
- Apply to a recommended coating thickness of approx. 40 µm.
Usage Notes
- Not suitable as a primer for PU, MS polymer, or hybrid sealing compounds.
- Not designed to be overpainted; only conditionally recoatable after testing.
- Store between 5-30°C at max. 60% relative humidity.
- Shelf life: 36 months from production.