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3 Ply double sided tape with polyethylene backing for pipeline
3 Ply double sided tape with polyethylene backing for pipeline

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1.Double coated tape
2.Self adhesive tape
3.PE backing with butyl rubber adhesive
4.Cold applied
5.Anti corrosion tape

3 Ply double sided tape with polyethylene backing for pipeline 

Coating System for pipelines-Inner Layer

Maiqiang 3 PLY tape is a three-ply cold applied tape with polyethylene backing and butyl rubber adhesive layers on both sides. It is also used as inner-layer tape. It shall be applied by hand or with a wrapping machine
The 3 Ply tape shall be applied after the Liquid adhesive and before the outer-layer tape by hand or with a wrapping machine.

 

 

 

 

Features
Excellent bonding between adhesive and carrier film via co-extruded intermediate layer.
Mechanically highly resistant tape system.
Practically impermeable to water vapour and oxygen.
Resistant to soil bacterial and soil electrolyte.
Compatible with coating from PE,PP,FBE,PU,CTE and Bitumen and ext… .
A Total Coating System with:
High adhesion and shear resistance
Resistance to corrosion disbondment
High electrical resistance
High dielectric strength
High corrosion protection for steel substrates

 

Phisical Properties

 

Test Method

T4762-30

T4813-32

Metric

Englishi

Metric

Englishi

Total Thickness

ASTM D 1000

0.770mm

30 mils

0.830mm

32 mils

Adhesive Thickness(External)

ASTM D 1000

0.250mm

10 mils

0.160mm

6 mils

Adhesive Thickness(Internal)

ASTM D 1000

0.260mm

10 mils

0.360mm

14 mils

Backing Thickness

ASTM D 1000

0.260mm

10 mils

0.310mm

12 mils

Tensile Strenght

DIN 30672/1

64.5 N/cm

36.3 lbs/in

72 N/cm

41.2 lbs/in

Elongation

DIN 30672/1

510%

510%

570%

570%

Shear Resistance

At 23 ºC

DIN 30672/1

0.054 N/mm2

125 oz/sqin

0.060 N/mm2

139 oz/sqin

Peel strength to Primed Steel at (180 º)

At 23 ºC

DIN 30672/1

18 N/cm

165 oz/in

20 N/cm

183 oz/in

At 50 ºC

DIN 30672/1

2.4 N/cm

22 oz/in

2.7 N/cm

25 oz/in

Peel strength outer to inner(180 º)

At 23 ºC

DIN 30672/1

36 N/cm

329 oz/in

45 N/cm

411 oz/in

At 50 ºC

DIN 30672/1

4.8 N/cm

44 oz/in

6.0 N/cm

55 oz/in

Water Absorption(1)

ASTM D 570

0.06%

0.06%

0.05%

0.05%

Water Vapor Transmission Rate (24h)

ASTM E 96

0.13g/m2·24h

0.083g/100sq in/24

0.075g/m2·24h

0.005g/100sq in/24h

Insulation Resistance

ASTM D 257

108 Mohm

10E 8 Mohm

1010 Mohm

10 E10Mohm

Dielectric Strenght

ASTM D 1000

41 KV/mm

41 KV/mm

43 KV/mm

43 KV/mm

Impact Resistance

DIN 30672/1

15.3 N·m

15.3 Joules

15.5 N·m

15.5 Joules

Color

Black

Tape width in inches

50mm(2″),101mm(4″),152mm(6″),228mm(9″),305mm(12″),457mm(18″),

610mm(24″),750mm(29.5″)

Tape roll length in feet

15m(50ft),25m(82ft),30m(98ft),50m(164ft),61m(200ft),122m(400ft),

183m(600ft),244m(800ft)

Core size

38mm(1.5″),76mm(3″) core of paper or hard plastic

Application Temperature

-34 ºC to +85 ºC  ( -29 ºF to 185 ºF )

Operating Temperature

+85 ºC            ( 185 ºF )

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