Heat shrinkable tape has a two-layer structure (polyethylene backing and hot-melt adhesive). When the tape is being heat, the backing of the tape shrinks, the adhesive layer softens and fills in all the irregularities to constitute a uniform coating and provide with excellent peel and dielectric strength of the coating.

The tape is delivered in 30, 40 or 50 running meter rolls, and the thickness is usually in 1.2mm-2.5mm.

Specification

NO.

Item

Unit

Typical

Test Method

A

base Material of the Heat-Shrinkable Sleeve

1

Tensile Strength

MPa

22.7

GB/T 1040

2

Elongation at Break 23 oc

%

630

GB/T 1040

3

Weika Softening Point

oc

91

GB/T 1040

4

Brittle Temperature

oC

<-65

GB/T 1633

5

Dielectric Strength

MV/m

30.4

GB/T 1408

6

Volume Resistivity 2oc

Ω@m

6.2×1013

GB/T 1410

7

Stess Failure F50

h

No crack after 1000 hours

GB/T 1842

8

Corrosion Protection Against Chemist Medium (Marinate 7 days)10%HCl
10%NaOH
10%NaCl

%

98
94
98

GB/T 1040

9

Thermal Ageing Protection(150oc,168h)
Tensile Strength
Elongation

MPa
%

21.3
620

GB/T 1040

B

Heat-Melt Adhesive

10

Softening Stength

oc

105

GB/T 4507

11

Shearing Strength

MPa

2.9

SY/T 0041

12

Brittle Strength

oc

<-15

ASTM D2671C

13

Peel Strength (PE/Steel)

25oc

N/cm

120
62

GB/T 2792

50oc

14

Peel Strength (PE/FBE)

25oc

N/cm

100
48

GB/T 2792

50oc

15

Peel Strength (PE/PE)

25oc

N/cm

83
35

GB/T 2792

Application

Packing & Delivery