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Corrosion protective heat-shrinkable sleeve

The Canusa K-40 Wraparound sleeve is designed for corrosion protection of buried and exposed pipelines operating up to 40°C (104°F).

K-40 consists of a crosslinked polyolefin backing, coating with a technologically advanced corrosion protective adhesive, which effectively bonds to the steel substrate and common pipeline coatings including polyethylene and fusion bonded epoxy.

Rapid & Reliable Installation

  • K-40 has a patented one piece WrapidSleeve construction that incorporates a pre-attached closure strip. Because the closure is factory applied, a quick and reliable field installation is easily accomplished
  • K-40 is supplied with a yellow or black polyethylene backing, based on its intended usage

Long Term Corrosion Protection

  • K-40 provides excellent resistance to Cathodic Disbondment resulting in effective long term corrosion protection
  • Once installed, K-40 delivers the structural integrity of a seamless tube and provides the substrate with durable protection against abrasion and chemical attack

Saves Time & Money

  • Lower Pre-heat means less time heating and a faster installation
  • For added flexibility, the sleeve can be supplied as a bulk roll or pre-cut to the require pipe size

Product Properties

Sleeve Operating Characteristics Test Method Typical Values
Pipeline Operating Temp. Up to 40°C (104°F)*
Minimum Installation Temp. 60°C (140°F)
Mainline Coating Compatibility PE, PP, FBE, HPCC
Adhesive Properties
Softening Point ASTM E28 90°C
Lap Shear @ 23°C (50mm/min) ISO 21809-3 30 N/cm2
Backing Properties
Tensile Strength ASTM D638 20 MPa
Elongation ASTM D638 600%
Hardness ASTM D2240 46 Shore D
Volume Resistivity ASTM D257 1017 ohm-cm
Sleeve Properties
Adhesion Strength @ 23°C (100 mm/min) ISO 21809-3 50 N/cm
Impact Resistance ISO 21809-3 > 5 J/mm
Indentation Resistance ISO 21809-3 > 0.65mm (Pass)
Cathodic Disbondment @ 23°C, 28 days ISO 21809-3 6 mm
Low Temp. Flexibility ASTM D2671-C -7 °C
Thickness T L S
Backing (nominal thickness as supplied) 0.9 mm (0.035”) 0.9 mm (0.035”) 1.1 mm (0.045”)
Adhesive (nominal thickness as supplied) 0.9 mm (0.035”) 1.4 mm (0.055”) 1.5 mm (0.060”)
* Actual temperature rating is dependant on specific project requirements and conditions. Please consult your local Canusa representative.

Applications / Assets

  • Girth-Weld Joints
  • Pre-insulated pipe


Last Updated: 12/18/2017 3:42:03 PM
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