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polyethylene outer tape
1. It is consist of Polyethylene backing and Butyl rubber adhesive.
2. The color can be black, white, yellow and gray.
Outer tape:
(Protection Tape, Protective Tape) is for protection of pipe and the surface of Inner Tape from damages.
Features:
1) The specification of the tape consists of two layers, adhesive and film
2) Inner layer: butyl rubber
3) Outer layer: polyethylene
4) Thickness: 0.40 - 1.30mm
5) Width: 50mm, 75mm, 100mm, 150mm, 230mm, 300mm
6) Length: 30 - 300m
Protective tape (outer tape) it is used as the base material which is coated by the liquid butyl rubber film, both of which are pressed and compounded. The film of protective tape is thicker and higher in intensity. Protective tape will protect the pipe and its anti-corrosion tape surface from damage.
Outer wrap tape:
Measurement | US Value | Metric Value | Test Method |
Backing thickness | 15 mil | 0.375mm | PSTC-33 |
Adhesive thickness | 17 mil | 0.425mm | PSTC-33 |
Adhesion to Steel | 28oz/in | 31.4g/mm | ASTM-D-3330 |
Elongation | 500% | 500% | ASTM-D-1000 |
Dielectric breakdown | 40 Kv/mm | 40 Kv/mm | ASTM-D-1000 |
Insulation resistance | 108Ohm.m2 | 108Ohm.m2 | ASTM-D-1000 |
Water absorption | <0.1% | <0.1% | ASTM-D-570 |
Maximum Temperature | 190ºF | 88ºC |
|
Tensile | 10lb/in | .18kg/mm | ASTM-D-3759 |
Color | White /Black | White /Black |
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