HLD T500 PP tape
The PP bitumen tape shall be applied after the Liquid adhesive by hand or with a wrapping machine.
Structures
The specification of the tape consists of three layers,
Adhesive layer: Butyl rubber Bituminous Compound
Backing : PP woven fabric cloth
Interleaf: Antiadhesive Film Treated with Silicone
Features
_ 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 cathodic disbanding
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Item |
Parameter |
Standards to follow |
|
base membrane material |
PP mesh reinforced woven fiber |
SY/T0414-2007 Steel piping PP adhesive tape Standard for corrosion layer technology
Urban Gas Piping Corrosion Prevention Control Specification American National Standard Association
American Hydraulic Society Standard ANSI/AWWA C209-00
National Association of Corrosion Engineers standard NACE MR0274-95 |
|
base membrane color |
Black |
|
|
base membrane thickness |
0.30±0.05mm |
|
|
Composition of corrosion layer |
butyl rubber improved asphalt |
|
|
Tape integral thickness spec |
1.1-1.8mm |
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|
base membrane extension strength |
≥25Mpa |
|
|
Peeling strength to painted steel |
≥45N/cm |
|
|
Peeling strength to back strap |
≥25N/cm |
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Insulation voltage |
≥15KV |
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Bulk resistance rate (Ω · m) |
≥1×10¹² |
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Water absorption rate (%) |
≤0.2 |
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Vapor infiltration rate (mg/24/h.cm2) |
≤0.45 |
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Fungus resistance |
Good |
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Bacterial resistance |
Good |
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Each tape length |
20 or 25m |
|
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Tape width |
50,75,100,150,200,300 and 350mm |
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|
Storage temp. |
-20°C-+35°C |
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Operation temp. |
-5°C-+50°C |
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Use temp. |
-34°C-+75°C |
