Metallic Zinc and Bituminous-Coated Pipe

Product description
A ductile iron pipe protected externally by a thermally sprayed metallic zinc layer and a bituminous finishing coat. This system provides electrochemical protection against soil and environmental corrosion.

Key features

• Metallic zinc provides cathodic and electrochemical protection
• Self-repairing protection mechanism at minor damaged areas
• Bituminous finishing layer protects the zinc surface
• Suitable for underground installation
• Improved resistance against soil moisture
• Increased resistance to aggressive environments
• Uniform external protective surface
• Enhanced long-term corrosion performance

Technical values stated in the catalogue

• Metallic zinc application: 200 g/m²
• Zinc-wire purity: 99.99%
• Application method: thermal spraying
• Minimum bituminous finishing thickness: 70 microns

Standard

• External coating according to ISO 8179

Enhanced option for harsh conditions

• Zinc–aluminium alloy coating: Zn–15% Al
• Bituminous–aluminium finishing layer: maximum 20% Al
• Recommended according to EN 545 for highly corrosive environments and UV exposure