Cotran Brand T28-thin waterseal mastic tape is a new generation made from EPR and butyl rubber. T28-thin is produced according To a new improved formula of COTRAN, which is a fusion of all advice from the base station staff. It inherits all the KC80 good features, and also has the new characteristics of being light&thin and easy to be operated.
Applications
◆ Use for insulating, filling and moisture sealing in splices of all types of power cables and optical telecommunication cables;
◆ Use for insulation and moisture sealing irregular shaped bus bar bolted connections;
◆ Use for moisture sealing high or low voltage junction boxes and irregular splices;
◆ Moisture seal for power cable and wire connections;
◆ Moisture seal for service drops;
◆ Moisture seal for ground wire and rod connections;
|
No. |
Test Item |
Result |
Test Method |
|
1 |
Dimension |
45mmx1mmx10m |
ASTM D4325 |
|
2 |
Tensile Strength |
0.74MPa |
ASTM D4325 |
|
3 |
Elongation at Break |
906% |
|
|
4 |
DielectricStrength |
20kV/mm |
|
|
5 |
Adhesion (180° Steel plate) |
29.6N/50mm |
ASTM D1000 |
|
6 |
Ozone Resistance |
Pass |
ASTM D4388 |
|
7 |
UV Resistance |
Pass |
ASTM D4388 |
|
8 |
Xenon-arc Exposure |
Pass |
ASTM D4388 |
Installation
Cotran Brand T28-thin waterseal mastic tape should be applied in half–lapped layers until desired insulation build up is reached.
Step 1 Wipe off the dusts on the splice area before wrapping.
Step 2 Remove the liner and stretch the tape to 1 to 2 times of its original length, apply the tape in 50%-lapped with mastic side toward area to the wrapped. Stretching the tape to 4 times of its original length is not recommended.
Step 3 Make sure there is 30mm to 50mm wrapping tape above both sides of the splice area.
Step 4 After T28-thin waterseal mastic tape is applied, overwrapping COTRAN PVC insulation tape is recommended, apply 3 layers of COTRAN PVC insulation tape in a 50% overlapping with no tension. Make sure not to overstretch the PVC tape during installation.
