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3LPP Hybrid Coating System

The GTS-PP-65 system is a hybrid system combining a Polypropylene backing with a mastic adhesive.

This combination results in a product with the mechanical protection of polypropylene with the ease of installation of a traditional adhesive. This also allows for a lower preheat temperature and faster application then found with traditional 3LPP systems.

Superior Mechanical Protection

  • The GTS-PP-65 sleeve has superior impact and shear resistance by virtue of its polypropylene backing. The sleeve is engineered for use in offshore applications where mechanical resistance is required and the rapid cooling of polypropylene allows better resistance to offshore laying rollers

Unique Adhesive Technology

  • Allows for lower installation pre-heat temperatures and superior bonding to PP, PE, FBE, AE and CTE coatings
  • The adhesive has been formulated to bond directly to the steel and mainline coating

Flexible installation

  • For added flexibility, the sleeve can be supplied as either pre-cut to the required pipe sizes or as bulk rolls

Long Term Corrosion Protection

  • Provides a protective coating with the structural integrity of a seamless tube, providing excellent resistance to cathodic disbondment and excellent durability against abrasion and chemical attack

Saves time and Money

  • Lower pre-heat means less time heating and a faster installation
  • Excellent quenching properties allow for faster cycle times during offshore installations

Product Properties

Sleeve Operating Characteristics Test Method Typical Values  
Offshore Pipeline Operating Temp.   Up to 65°C (149°F)*  
Minimum Installation Temp.   75°C (167°F)  
Rapid Quenching Ability   Excellent  
Main Line Coating Compatibility   PE, PP, FBE, AE & CTE  
Adhesive Properties
Softening Point ASTM E28 102°C  
Lap Shear @ 23°C EN 12068 15 N/cm2  
Backing Properties
Tensile Strength ASTM D638 28 MPa  
Elongation ASTM D638 425%  
Hardness ASTM D2240 65 Shore D  
Volume Resistivity ASTM D257 2 x 1017 ohm-cm  
Sleeve Properties
Adhesion Strength @ 23°C EN 12068 15 N/cm  
Impact Resistance EN 12068 >20 J  
Indentation Resistance EN 12068 Pass  
Cathodic Disbondment @ 23°C, 28 days ASTM G8 < 8 mm rad  
Bending Resistance GBE/CW6 Pass  
Thickness T L S
Backing (nominal thickness as supplied) 0.9 mm
0.9 mm
1.1 mm
Adhesive (nominal thickness as supplied) 0.9 mm
1.4 mm
1.5 mm

* Actual temperature rating is dependant on specific project requirements and conditions. Please consult your local Canusa representative

Applications / Assets

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


Last Updated: 2/22/2018 9:23:45 PM
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