ⅠSystem description:
The XUNDA-T200 series is Cold applied tape coating system for corrosion protection of Oil, Gas, Petrochemical, and Waste Water underground or overhead pipelines. The outer-layer tape backing shall be compounded so that it will be resistance to outdoor weathering.
The outer-layer tape shall be applied after the inner-layer tape by hand or with a wrapping machine
ⅡStructure:
The specification of the tape consists of two layers, adhesive layer and film backing
Adhesive: butyl rubber
Film backingr: Special blend of stabilized polyethylene
Ⅲ 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 Standard
Cold applied
ⅣPhysical Properties:
|
Physical Properties
|
Test Method
|
Typical Value
|
|
English
|
Metric
|
|
Total thickness
|
ASTM D 1000
|
20.0 mil
|
0.50mm
|
|
Backing thickness
|
ASTM D 1000
|
13.0 mil
|
0.32 mm
|
|
Adhesive thickness
|
ASTM D 1000
|
7.0 mil
|
0.18 mm
|
|
Width
|
-
|
2’’- 32 ‘’
|
50 -800 mm
|
|
Length
|
-
|
100’ -800 ‘
|
30 -240 m
|
|
Backing colour
|
-
|
White,Yellow or orthers
|
|
Tensile strength
|
ASTM D 1000
|
29.0 lbs/in
|
50 N/ cm
|
|
Elongation
|
ASTM D 1000
|
400 %
|
|
Peel Adhesion to inner-layer tape
|
ASTM D 1000
|
45 oz/in
|
5 N/cm
|
|
Cathodic Disbandment
|
ASTM G8
|
0.25 in radius 6.4 mm
|
|
Dielectric Strength
|
ASTM D 149
|
35 Kv
|
|
Volume Resistivity
|
ASTM D 257
|
2.0x1012 ohm.cm
|
|
Water Absorptivity
|
ASTM D 570
|
0.06 %
|
|
Water Vapor Transmission Rate （24h）
|
ASTM F1249
|
0.01g/100sq in/24h
|
0.1g/100sq mm/24h
|
|
UV resistance
|
-
|
Excellent
|
|
Application Temperature
|
-
|
14℉-140℉
|
-10 ℃ - 60 ℃
|
|
Max Service Temperature
|
-
|
-40℉-176℉
|
- 40 ℃ - 80℃
|
