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GTS-65

Global Transmission Sleeve

The GTS-65 system provides superior corrosion protection and excellent bonding on pipelines operating up to 65°C.

GTS-65 has been designed with a unique adhesive technology that remains “open” longer than traditional adhesives. Also, special surface active agents allow bonding to lower surface energy coatings (such as polypropylene). As a result, lower preheat temperatures are required to attain true adhesive wet-out and superior bonding to PE, PP and FBE surfaces is achieved.

Superior Force Cured Epoxy

  • Proven method of force curing the liquid epoxy to the steel allows the installer to “pre-inspect” the joint prior to sleeve application
  • Force cured epoxy cannot be displaced during the aligning and shrinking stages of the sleeve installation

Unique Adhesive Technology

  • Allows for lower installation pre-heat temperatures and superior bonding to PE, PP and FBE coatings
  • Adhesive has been formulated to bond directly to the main line coating; epoxy is applied to the steel only

Flexible Installation

  • GTS-65 can be used as either a 2-layer or 3-layer sleeve system with the same low pre-heat temperature
  • For added flexibility, the sleeve can be supplied as bulk rolls or pre-cut to the required pipe size

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 & Money

  • Lower pre-heat means less time heating

Product Properties

Sleeve Operating Characteristics Test Method Typical Values
Pipeline Operating Temp. Up to 65°C (150°F)*
Minimum Installation Temp. 90°C (195°F)
Main Line Coating Compatibility PE, HPPC, PP, FBE
Adhesive Properties
Softening Point ASTM E28 94°C
Lap Shear @ 23°C ISO 21809-3 245 N/cm2
Lap Shear @ 60°C ISO 21809-3 8 N/cm2
Backing Properties
Tensile Strength ASTM D638 24 MPa
Elongation ASTM D638 600%
Hardness ASTM D2240 55 Shore D
Volume Resistivity ASTM D257 1017 ohm-cm
Sleeve Properties
Adhesion Strength @ 23°C ISO 21809-3 >70 N/cm
Impact Resistance ISO 21809-3 >15 J
Indentation Resistance ISO 21809-3 0.65 mm (pass)
Cathodic Disbondment @ 23°C, 28 days
ASTM G8 3 mm rad
Low Temp. Flexibility ASTM D2671-C >-32°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")
1.3 mm
(0.050")
1.5 mm
(0.060")

* Actual temperature rating is dependant on specific project requirements and conditions.

† As a 3-layer system

Epoxy usage can be referenced on the Liquid Epoxy Product Data Sheet.

Applications / Assets

  • Gas Pipelines
  • Large Diameter Pipelines
  • Oil Pipelines
  • Small Diameter Pipelines

Documentation

Last Updated: 12/18/2017 3:41:25 PM
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