AWWA C 214 standard's Anti-corrosion inner layer tape (20 mil)
ⅠSystem description:
The XUNDA-T-100 series is Cold applied tape coating system for corrosion protection of Oil, Gas, Petrochemical, and Waste Water underground or overhead pipelines.
The anti-corrosion inner layer tape shall be applied after the Liquid adhesive and before the middle layer tape by wrapping machine
ⅡStructure：
The specification of the tape consists of two layers, adhesive layer and film backing
Adhesive: Butyl rubber
Film backing: Special blend of stabilized polyethylene
Physical Properties
XUNDA-T 150
|
Item
|
Unit
|
Typical value
|
Test method
|
|
Color
|
—
|
Black
|
Visual
|
|
Width Deviation
|
%
|
1
|
ASTM D1000
|
|
Total thickness
|
mm
|
0.51(20 mils)
|
ASTM D1000
|
|
Backing thickness
|
mm
|
0.28
|
ASTM D 1000
|
|
Adhesive thickness
|
mm
|
0.22
|
ASTM D 1000
|
|
Adhesion to primed steel
|
N/m
|
3,000
|
ASTM D 1000
|
|
Water absorption(24hr)
|
%
|
0.12
|
ASTM D 570
|
|
Water-Vapor transmission
|
perms
|
0.10
|
ASTM E 96
|
|
Dielectric strength
|
V
|
36,000
|
ASTM D 149
|
|
Insulation resistance
|
megohms
|
1.2X1012
|
ASTM D 1000
|
|
Tensile strength
|
N/m
|
5,500
|
ASTM D 1000
|
|
Elongation
|
%
|
400
|
ASTM D 1000
|
|
Impact Resistance
|
N.m
|
6
|
ASTM G 14
|
|
Nonpolyolefinic material,percent by weight
|
%
|
1.40
|
ASTM D 4218
|
|
Ratio of adhesive to total inner layer tape thickness
|
%
|
44
|
ASTM D 1000
|
|
Application temperature
|
℃
|
-10 - 60
|
|
Max Service temperature
|
℃
|
-40 - 80
|
