Excellent adhesion to inner-layer tape and self
Resistant to UV
Can be applied over a wide temperature range
Good conformabi
Coating System for pipelines-Outer Layer
Maiqiang T-200 series are 2-Ply polyethylene (PE) anticorrosive adhesive tapes. It is Cold wrap tape coating system for Corrosion Protection of Water, Oil and Gas Pipelines.
The outer-layer tape backing shall be compounded so that it will be resistance to outdoor weathering.
Type | T-250 | T-265 | T-280 |
Total thickness | 0.51mm | 0.65mm | 0.80mm |
Polyethylene Film | 0.38mm | 0.51mm | 0.63mm |
Synthetic Adhesive | 0.13mm | 0.14mm | 0.17mm |
Elongation at break | ≥400% | ||
Tensile Strength | 45.3 N/cm | 50.8 N/cm | 60.1N/cm |
Yield Strength | 35.9 N/cm | 43.4 N/cm | 45.8 N/cm |
Dielectric Strength | 32.9 KV/mm | 43.5kv/mm | 45.2 kv/mm |
Cathodic Disbandment | 0.24 in radius 6.4mm | ||
Volume Resistivity | 2.5X1012 ohm.m | ||
Water Vapor Transmission ate | ≤0.08gm/m2/24h | ||
Water Absorption Rate | <0.07% | ||
Recommended Application Temperature | -5 ºC to +60 ºC | ||
Max Serve Temperature | -40 ºC to +80 ºC | ||
Color | White | ||
Available Roll Size(width * length) | 2” to 9” X 50 to 800 feet | ||
Physical Properties | Test Method | Typical Value | |
English | Metric | ||
Total thickness | ASTM D 1000 | 25.0 mil | 0.64mm |
Backing thickness | ASTM | 16.0 mil | 0.40mm |
Adhesive thickness | ASTM | 9.0 mil | 0.24mm |
Width | - | 2”-32” | 50-800mm |
Length | - | 100”-800” | 30-240m |
Backing color | - | White, Yellow or other |
|
Tensile strength | ASTM | 29.1lbs/in | 52N/cm |
Elongation | ASTM | 400% |
|
Peel Adhesion to primed steel pipe | ASTM | 45 oz/in | 5 N/cm |
Cathodic Disbandment | ASTMG8 | 0.25 in radius 6.4mm |
|
Dielectric Strength | ASTM D 149 | 40 Kv |
|
Volume Resistivity | ASTM D 257 | 2.2×1012 ohm.cm |
|
Water Absorptivity | ASTM D 570 | 0.067% |
|
Water Vapor Transmissioin Rate (24h) | ASTM F1249 | 0.01g/100sq in/24h | 0.1g/100sq mm/24h |
Application Temperature |
| 14ºF to 140 ºF | -10ºC to 60 ºC |
Max Service Temperature |
| -40ºF to 176 ºF | -40ºC to 80 ºC |
Features
Excellent adhesion to inner-layer tape and self
Resistant to UV
Can be applied over a wide temperature range
Good conformability and consistent uniform thickness
Easily applied with no special equipment
Compatible with common pipe coatings
Excellent resistance to cathodic disbonding
Meets ASTM D 1000 StandardCold applied
