Waterproof Insulation Waterseal Mastic Tape KC80

◆ Continuous waterproofing.
◆ Highly self-fusing tape.
◆ Suitable for irregular shapes cable.
◆ Resistance to high/low temperature.
◆ Resistance to corrosion.
◆ Resistance to ozone, UV, xenon exposure.
◆ New formulation for insulation.
◆ Operation and installation easily.
◆ Excellent adhesion to copper, aluminum and cable jacket.

Cotran Brand KC80 waterseal mastic tape is a conformable self-fusing rubber electrical insulating and sealing tape. KC80 consists of ethylene propylene rubber (EPR) and butyl mastic adhesive. It has strong adhesion to copper, aluminum, and cable jackets. It provides excellent waterproofing performance and temperature stability at 90℃,and withstanding of overload temperature up to 130℃. 

Insulation Mastic Tape


Applications

◆ Use for insulating, filling and moisture sealing in splices of all types of power cables and optical telecommunication cables. For primary insulation up to 1000 volts.
◆ 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


Test Parameters

No.

Test Item

Result

Test Method

1

Width

51mm

ASTM D4325

2

Thickness

1.65mm

ASTM D4325

3

Tensile Strength

1.29MPa

ASTM D4325

4

Elongation at Break

970%

ASTM D4325

5

Water absorption

0.16%

ASTM D570

6

DielectricStrength

26.5kV/mm

ASTM D1000

7

Volume resistivity

8.9x1015Ω.cm

ASTM D257

8

Adhesion (180° Steel plate)

78.4N/50mm

ASTM D1000

9

Heat exposure

Pass, 130°C

ASTM D4388

10

Ozone ageing

Pass

ASTM D4388

11

UV ageing

Pass

ASTM D4388

12

Xenon ageing

Pass

ASTM D4388


Installation

Cotran Brand KC80 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 KC80 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.

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