Key Features
- High-purity zinc (99.5%) provides effective sacrificial anode action
- Self-adhesive, cold-applied system eliminates the need for hot-dip galvanizing
- Excellent flexibility and conformability to irregular surfaces
- Strong adhesive bond ensures reliable electrical continuity
- Protects against saltwater, chemical, and atmospheric corrosion
- Easy to cut and apply, reducing labor time and cost
- Ideal for repairing damaged galvanized coatings and touch-up work
- Suitable for splash zones, tidal zones, and submerged applications
Technical Specifications
| Specification | Details |
|---|---|
| Zinc Content | 99.5%+ |
| Adhesive Type | Conductive acrylic (zinc-loaded) |
| Operating Temperature Range | -30°C to +90°C (-22°F to +194°F) |
| Application Temperature | +10°C to +40°C (+50°F to +104°F) |
| Tensile Strength | ≥ 150 N/cm (based on 1mm thickness) |
| Thickness | 0.5 mm / 1.0 mm / 1.5 mm |
| Width | 25 mm / 50 mm / 100 mm / 150 mm |
| Length per Roll | 10 m / 20 m (custom lengths available) |
| Salt Spray Resistance | ≥ 2000 hours (per ASTM B117) |
| Elongation at Break | ≥ 12% |
| Recommended Preparation | Surface must be clean, dry, and free of oil, grease, or rust |
| Standards | Conforms to ASTM B209 and MIL-DTL-18001L (general) |
Frequently Asked Questions
How does zinc tape protect metal from corrosion?
Zinc tape provides sacrificial cathodic protection. Because zinc is more electrochemically active than steel, it corrodes preferentially, protecting the underlying metal. This is the same principle as galvanizing, but applied as a simple adhesive tape.
Can the tape be applied to rusty or wet surfaces?
No. For optimal adhesion and corrosion protection, the surface must be cleaned to bare metal or an existing sound coating. It must be dry and free of oil, grease, salt, or loose rust. Proper surface preparation is essential for long-term performance.
What is the shelf life of adhesive zinc tape?
Typical shelf life is 2 years when stored in original packaging in a cool, dry environment (15-30°C) away from direct sunlight and humidity. Always check the specific batch documentation for exact expiry details.
Can the tape be used for submerged applications?
Yes. It is suitable for submerged marine environments, including splash zones and tidal areas. However, for aggressive cathodic protection in subsea applications, a qualified zinc anode system may be more appropriate. For most above-water and splash-zone uses, the tape is highly effective.
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