| WSS Heat Shrinkable Wrap-around Sleeve |
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For corrosion protection of girth weld joint of buried steel pipeline
Especially for 3PE/3PP/ FBE factory coating pipeline
Product description:
Construction: Three-layer system
• First layer: Liquid epoxy primer CP-1, solvent-free two-component
• Second layer: High shear strength hot-melt copolymer adhesive
• Third layer: Radiation cross-linked, high density polyethylene backing,
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| Product features/benefits: |
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• Excellent multifunctional adhesive allow for lower installation pre-heat temperature and super bonding to PE, PP and FBE, offer fully resistant to shear forces induced by soil and thermal movements.
• Superior cathodic disbondment and hot water immersion resistance offers the optimum barrier long term protection against corrosion.
• Saves time & cost by lower preheat temperature, wet epoxy primer application.
• Pattern backing provides a “heating temperature indicator” for application of heat, ensures correct applic-ation heating.
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WSS 50(Mastic)
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WSS 60
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WSS 80
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Standard reference
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EN 12068 Class
C50
ISO21809-3
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EN 12068 Class C50
NACE RP0303
ISO/DIS 21809-3
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EN 12068 Class C HT UV
NACE RP0303
ISO/DIS 21809-3
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Compatible line coatings
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PE, FBE, Coal Tar,
AE
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FBE, PE, PP
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FBE, PE, PP
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Soil stress restriction
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None
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None
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None
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Max operating temperature
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60°C
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60°C
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80°C
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Preheat temperature
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50 - 60°C
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50 - 70°C
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60 - 80°C
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Recommended pipe preparation
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SA 2½ or ST 3.0
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SA 2½ or ST 3.0
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SA 2½
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Property
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Test method
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Typical value
WWS50(mastic)
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Typical value
(WSS60)
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Typical value
(WSS80)
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Epoxy primer
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Solid content %
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GB/T1728
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99.5
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3\99.5
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99.5
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Cathodic disbondment
(65℃, 48h) mm
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Q/SY GJX0113-2007
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8
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8
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8
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Backing
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Tensile strength Mpa
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GB/T1040-92
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21
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24
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24
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Elongation %
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GB/T1040-92
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550
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550
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550
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Density
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ASTM D792
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0.93
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0.94
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0.94
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Adhesive
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Softening point
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GB/T4507-85
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78
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113
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120
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Shear strength Mpa
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ASTM D1002-05
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0.8
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0.8
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1.0
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Sleeve
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Peel to steel N/cm
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GB/T2792-98
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90
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160
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140
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Peel to PE N/cm
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GB/T2792-98
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85
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110
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95
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Cathodic disbondment
(70℃, 30d) mm
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SY/T0413-2002 |
/
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18
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18
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Water absorption
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ASTMD570
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0.001%
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0.001%
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0.001%
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Ordering information:
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WSS type products are available:
• as cut piece (pre-cut sleeve with separate closure patch)
• as a roll (closure patches to be ordered separately)
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Example:
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WSS60Φ559-1.5/1.0
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WSS
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Product type
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60
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Operating temperature 60°C
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Φ559
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Outside pipe diameter
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1.5
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Backing thickness
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1.0
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Adhesive thickness
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Product thickness (mm)
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Adhesive
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Total thickness
(as supplied)
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Total thickness
(recovered on pipe)
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1.0
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1.8
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2.0
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1.2
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2.2
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2.4
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1.5
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2.5
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2.8
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1.5
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2.7
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3.0
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1.7
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3.2
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3.5
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* Other sleeve thickness (1.4~3.5mm) are available
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| All information contained in this technical data sheet is to be used as a guide and is subject to change without notice. Products can be produced according to given specification. Please contact us for further information and confirmation. |
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