Bitumen tape for pipe joints or pipeline
Product Description
Bitumen tape
Specification
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Product Style No.
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XUNDA T 500 XUNDA T 600 XUNDA T 700
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Storage life
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24 months
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Service life
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More than 30 years
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Storage temperature
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5 C - 50 C
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ⅠSystem description for bitumen tape
XUNDA bitumen tape is cold applied tape for both metallic pipelines and waterproofing works against outdoor bad weathers .
The bitumen tape shall be applied after the Liquid adhesive by hand or with a wrapping machine.
Ⅱ Bitumen tape’s Structures
The specification of the bitumen tape consists of three layers,
Adhesive layer: Butyl rubber Bituminous Compound
Backing : PP woven fabric cloth/Polyethylene/Aluminium foil
Interleaf:Antiadhesive Film Treated with Silicone
Ⅲ Features bitumen tape
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Waterproofing-
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Pipes protection
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-Cold applied.
-High resistance to bad weather environment
-Good performance itself to keep dry
-Easily application &installation.
-Suitable for a wide range of temperatures
- Compatible primers
-Safe,clean
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_ Cold applied
_ Excellent self adhesion to pipe
_ Flexibility provides extra protection at vulnerable areas
_ Excellent conformability and consistent uniform thickness
_ Easily applied with no special equipment
_ Compatible with common pipe coatings
_ Excellent resistance to cathodicdisbonding
_Wider service temperature range
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Physical Properties XUNDA Bitumen tape for XUNDA T 500 series
XUNDA-T 500 Series
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Item
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T 5100
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T 5130
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T 5150
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T 5165
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Total thickness (mil)
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40mils
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50mils
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60mils
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65mils
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Tensile Strength (lb/in)
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30(5kg/cm)
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35(6.3kg/cm)
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39(7kg/cm)
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42(7.5kg/cm)
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Elongation (%)
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400
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400
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450
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500
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Length
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25mtrs
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20mtrs
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15mtrs
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10mtrs
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Width
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2“,4”,6”,9”,12’’
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Peeladhesion To primed pipe (oz/in)
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269(3kg/cm)
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296(3.3kg/cm)
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314 (3.5kg/cm)
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340(3.8kg/cm)
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To backing (oz/in)
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90(1kg/cm)
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90(1kg/cm)
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117(1.3kg/cm)
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135(1.5kg/cm)
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Dielectric Strength (KV/mm)
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42
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42.6
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43
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43.8
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Volume Resistivity (ohm·m)
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2.5 X 1012
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2.5 X 1012
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2.5 X 1012
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2.5 X 1012
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Water Vapor Transmission Rate (g/ m2/24h)
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0.06
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0.05
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0.03
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0.02
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Water Absorptivity (%)
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0.1
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0.1
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0.1
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0.1
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Application Temperature (°F)
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-31-+160 (-35-+70℃)
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Max service temperature (°F)
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-40-+250 (-40-+121℃)
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How to apply the bitumen tape?
Prepare surfaces by removing all loose scale, rust or other foreign matter by grit blasting or wire brush. Surface must be clean, dry and free of grease.Apply thin film of Butyl Primer to all surfaces to be wrapped and allow to dry. Peel back interleaving and apply adhesive side of the tape to the surface and press down. Apply the tape spirally with enough tension to make it conform. Remove interleaving as wrapping proceeds. Overlap each turn by at least 1" or 55% to achieve double thickness.
Irregular surfaces such as valves, flanges, etc.
