Heat Shrinking Sleeve for Corrosion Protection of Pipeline Field Weld Joint

The pipeline heat shrink sleeve is a radiation cross linked sleeve designed for corrosion protection of straight pipes, fittings, bends, elbows and other irregular configurations. When heated the backing layer shrinks and the adhesive flows and forms a reliable corrosion...

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Product Details

System  Description


The pipeline heat shrink sleeve is a radiation cross linked sleeve designed for corrosion protection of straight pipes, fittings, bends, elbows and other irregular configurations. 


When heated the backing layer shrinks and the adhesive flows and forms a reliable corrosion protection seal onto metal and adjacent coating surfaces.


The epoxy primer should applied to the prepared pipe surface then heat shrink sleeve is immediately wrapped around the joint over the wet epoxy primer.


Product  Composition


The pipeline heat shrink sleeve consists of three layers, primer layer, adhesive layer, film backing.

Primer: Liquid epoxy,  solvent free two component.

Adhesive: High shear strength copolymer adhesive

Film backing: Radiation cross linked. High density polyethylene 


Product  Features


Excellent resistance to cathodic disbondment.

Long term corrosion protection.

Non hardening and non cracking.

Mechanical protection and moisture resistance. 

Excellent chemical resistance

Excellent resistance to shear forces

Fast application and high performance.


Product  Properties


Backing

Property

Typical Value

Test Method

Tensile Strength

20MPa(2900 psi)

ASTM D-638

Elongation at Break

550%

ASTM D-638

Specific Gravity

0.95

ASTM D-792

Hardness, Shore D

48

ASTM D-2240

Dielectric Strength

20 kv/mm

ASTM D-149

Water Absorption

0.05%

ASTM D-570

Shrink Force

240KPA(35 psi)

ASTM D-638

Volume Resistivity

1.0 x 1016 ohm.cm

ASTM D-257

Adhesive

Property

Typical Value

Test Method

Softening Point

85℃

ASTM E-28

Lap Shear

40 psi

ASTM D-1002

Heat shrinkable Sleeve

Property

Typical Value

Test Method

Peel to Steel

35N/cm

ASTM D-4541

Low Temperature Flexibility

-20℃

ASTM D-2671

Cathodic Disbondment

10mm radius

ASTM G8,30days,@23℃

Impact Resistance

Pass

DIN EN 12068

Indentation Resistance

Pass

DIN EN 12068

Dielectric Breakdown

35kv

ASTM D-149


Ordering Information


Xunda pipeline heat shrink sleeves are available in pieces.


Product Type

Standard Ordering Options

Sleeve Thickness

2.0mm、2.5mm or others

Sleeve Width

450mm、600mm、900mm or others

Sleeve Length

Φ273mm、Φ510mm、Φ711mm or others

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