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Factory Grade™ 3LPP Field-Applied Coating System

Launched in 2000, the GTS-PP 3LPP coating system remains the world’s leading joint coating for 3LPP coated pipelines.

Its patented design uses Factory Grade™ polypropylene materials to deliver equivalent performance to, and fusion to, the factory applied 3LPP coating with low installation temperatures and a proven and controlled application process.

Factory Grade™ 3LPP Coating Technology

  • Polypropylene (PP) top coat delivers mechanical protection and resistance to moisture absorption critical for high temperature and deepwater pipelines
  • High temperature liquid epoxy or fusion bonded on steel provides Factory Grade™ resistance to cathodic disbondment and allows for low installation temperatures
  • PP copolymer layer bonds the PP top coat to the epoxy and fuses to the factory-applied coating to eliminate the possibility of moisture ingress

Proven Compatibility and Fusion

  • Proven to provide consistent fusion to the factory-applied 3LPP coating with efficient installation

Easy to Install with Process Control

  • Factory Grade™ performance achieved with low installation temperatures using uniform induction pre-heating technology
  • Can be installed directly by contractors, supported by Canusa-CPS’ industry leading field service team
  • Can be combined with the patented IntelliCOAT™ systems, providing a fully automated, efficient and safe installation

Engineered for Maximum Efficiency

  • Patented Reduced Edge Thickness design enhances installation efficiency and allows for elevated thickness applications
  • Automated tube welding eliminates overlap/closure system typical of traditional sleeve systems, allowing for uniform thickness and cycle time reduction

Product Properties

Sleeve Operating Characteristics Test Method Typical Values
Pipeline Operating Temp Up to 140°C (284°F)*
Minimum Installation Temp. 175°C (347°F)
Main Line Coating Compatibility 3LPP, FBE
PP Copolymer Properties
Melting Point ASTM D3418 147°C
Lap Shear @ 23°C EN 12068 > 600 N/cm2
Lap Shear @ 110°C EN 12068 > 100 N/cm2
PP Top Coat (Backing) Properties
Tensile Strength ASTM D638 28 MPa
Elongation ASTM D638 > 400%
Hardness ASTM D2240 65 Shore D
Volume Resistivity ASTM D257 2 x 1017 ohm-cm
GTs-PP 3LPP Coating System Properties
Impact Resistance ISO 21809-1 10 J/mm
Indentation Resistance @ 110°C DIN 30678 0.4 mm
Adhesion Strength @ 23°C ISO 21809-1 > 250N/cm
Adhesion Strength @ 110°C ISO 21809-1 > 60N/cm
Cathodic Disbondment @ 23°C, 28 days ISO 21809-1 < 3 mm
Cathodic Disbondment @ 95°C, 28 days ISO 21809-1 < 7 mm
Hot Water Immersion @ 95°C, 28 days ISO 21809-1 pass, no disbondment
Total System Thickness Supplied Typical Applied
Standard Product 2.8 mm > 3.0 mm

Applications / Assets

  • Gas Pipelines
  • Offshore, Reel, J & S Lay
  • Oil Pipelines


Last Updated: 12/18/2017 3:43:16 PM
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