1.The Altene inner tape shall be applied after the primer and before the altene outer tape by hand or with a wrapping machine
2.The specification of the altene tape consists of two layers, adhesive layer and film backing
Adhesive: butyl rubber
Film backing: Special blend of stabilized polyethylene
3.Technical data.
|
Physical Properties
|
Test Method
|
Typical Value
|
|
English
|
Metric
|
|
Total thickness
|
ASTM D 1000
|
25.0 mil
|
0.64 mm
|
|
Backing thickness
|
ASTM D 1000
|
12.0 mil
|
0.30 mm
|
|
Adhesive thickness
|
ASTM D 1000
|
13.0 mil
|
0.34mm
|
|
Width
|
-
|
2’’- 32 ‘’
|
50 -800 mm
|
|
Length
|
-
|
100’ -800 ‘
|
30 -240 m
|
|
Backing colour
|
-
|
Black
|
|
Tensile strength
|
ASTM D 1000
|
28 lbs/in
|
48 N/ cm
|
|
Elongation
|
ASTM D 1000
|
400 %
|
|
Peel Adhesion to primed steel pipe
|
ASTM D 1000
|
256 oz/in
|
28 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
|
2.5x1012 ohm.cm
|
|
Water Absorptivity
|
ASTM D 570
|
0.05 %
|
|
Water Vapor Transmission Rate (24h)
|
ASTM F1249
|
0.01g/100sq in/24h
|
0.1g/100sq mm/24h
|
|
Application Temperature
|
|
14F-140F
|
-10 °C - 60 °C
|
|
Max Service Temperature
|
|
-40F-176F
|
- 40 °C - 80°C
|
XUNDA brand is similar with Altene brand. Please contact us to know more details.
