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Pipeline Coatings | WaterWrap

Supplier: Petro Coating Systems Pty Ltd

Pipeline Coatings, WaterWrap with PCI (Permanent Change Indicator) is a 2-layer field-joint coating system designed for corrosion protection of buried large diameter water pipelines operating at ambient temperature.

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Pipeline Coatings | WaterWrap

Product description

  • Construction: 2-layer system:
  • First layer: Visco-elastic low preheat adhesive sealant.
  • Second layer: Thick-walled, radiation cross-linked, high density polyethylene with PCI (Permanent Change Indicator)large radius bends

WaterWrap System-B is designed to be applied with a minimum preheating and is ideal for large diameter pipe. The installation is carried out directly on the cleaned and dried (pre-heated) pipe surface. The use of the 939 filler is required when the step down on the weld bead is >= 1/4".

The filler 939 is a thick mastic-like butyl rubber designed to fill and smooth transition areas. The semi-tacky composition remains flexible and easily moulded in place to conform around irregular shapes. During installation, the heat-shrinkable sleeve is wrapped around the pipe and heat is applied.

The heat activated backing contracts to form a tight fit around the joint eliminating entrapped air and filling the smallest of crevices with a high quality, corrosion inhibiting Visco-elastic adhesive sealant. The permanently cross-linked polyolefin outer layer forms a tough barrier against mechanical damage and moisture.

Product Features / Benefits

  • Contains no asphalt
    • Does not off-gas toxic vapors.
    • Safe to use.
  • Offers two Permanent Change Indicators (PCI)
    • Underheat Indicator - Ensures correct application heat to entire sleeve.
    • Overheat Indicator - Ensures no excess heat.
    • Result - Reliable installation and full inspectability at any time after installation.
  •  High modulus of elasticity backing
    • Greater soil stress resistance.
    • Better overall performance.
  • High impact and penetration resistance
    • Tough, but flexible throughout.
  • High shrink force
    • Optimizes flow & fill of visco-elastic adhesive sealant.
    • Greater, long term protection.
  • Low application preheat
    • Makes installation fast and easy.
    • Keeps installation costs low.
  • No special equipment or skills required
    • Easy to install.
    • Saves time

Product selection guide

  • Max operating temperature
    • 50°C (122°F)
  • Compatible line coatings
    • PE, FBE, Coal Tar, Tape & Asphalt
  • Min preheat temperature
    • 20°C(68°F)
  • Surface preparation
    • SP 2 or SP 3 Ref. AWWA C216
  • Performance
    • AWWA C216-00

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