With their very heavy wall, adhesive lining, and high voltage rating, Heat Shrink End Caps are a great way to seal the ends of power and communications cables. They are used to form a pressure-tight seal on the end of the cable, and can be applied quickly and easily using a heat gun, or a flameless torch.
The ideal heat shrink temperature for our heat shrink end caps is around 275°F (135°C). To apply the end cap follow these instructions:
1) make sure the cable lead or wire is clean and free of debris
2) Place the end cap over the wire end, and start heating it from the closed end.
3) Work your way towards the open end, evenly shrinking all around the cap.
4) Continue until the adhesive lining begins to seep out the open end.
Features:
- Dual wall end cap, with internal wall of hot-melt adhesive provides excellent bonding to plastic and metals.
- Forms pressure-tight seal on ends of communication and power cables
- Shrink temperature of 120-135C
- Continuous use temperature of up to 110C
- 15 kV/mm (381 V/mil) minimum electric strength (e.g. 0.12"=120 mil=45kV)
- 3 to 1 shrink ratio, so only 6 sizes are needed to cover a range of 0.16" to 5"
- Adhesive lining will prevent moisture penetration, allowing for long term storage of cable

Heat Shrink End Caps - Ordering Information
Contact us for Bulk OEM Pricing
| Description |
Size before shrinking |
Size after shrinking |
Ordering Information |
| Nominal |
ID Min |
Length |
ID Max |
Wall Thickness |
Price each |
Add to Cart |
| 1/8" Raychem PD end cap |
1/8 inch |
0.125 |
0.87 |
0.023 |
0.048 |
$0.35 |
|
| 3/16" Raychem PD end cap |
3/16" |
0.187 |
1.00 |
0.060 |
0.062 |
$0.42 |
|
| 1/4" Raychem PD end cap |
1/4" |
0.250 |
1.12 |
0.080 |
0.078 |
$0.45 |
|
| 3/8" heat shrink end cap |
3/8" |
0.39 |
1.34 |
0.16 |
0.08 |
$0.65 |
|
| 1/2" heat shrink end cap |
1/2" |
0.55 |
1.77 |
0.18 |
0.08 |
$0.78 |
|
| 1" heat shrink end cap |
1 inch |
1.00 |
2.76 |
0.31 |
0.09 |
$1.12 |
|
| 1 1/2" heat shrink end cap |
1 1/2" |
1.38 |
3.35 |
0.59 |
0.12 |
$1.25 |
|
| 2" heat shrink end cap |
2" |
2.17 |
4.33 |
1.00 |
0.13 |
$1.98 |
|
| 3" heat shrink end cap |
3" |
2.95 |
5.12 |
1.38 |
0.14 |
$2.15 |
|
| 4" heat shrink end cap |
4" |
3.94 |
6.10 |
1.97 |
0.16 |
$2.80 |
|
| 5" heat shrink end cap |
5" |
4.72 |
6.10 |
2.36 |
0.16 |
$3.60 |
|
For $35 extra you can get our economy model heat gun. It has two air speeds, and a temperature control dial for temperatures ranging from 250° to 1100°F
Properties
| PROPERTY |
TEST METHOD |
VALUES |
| Operating Temperature Range |
n/a |
-55C to 110C |
| Shrink Temperature |
n/a |
120C |
| Tensile Strength |
ISO 37 |
14 Mpa minimum |
| Ultimate Elongation |
ISO 37 |
400% minimum |
| Specific Gravity |
ISO 1183 |
1.95 maximum |
| Electric Strength |
IEC 243 |
15KV/mm minimum |
| Corrosion(Copper Contact and Copper Mirror) |
ASTM D2671 |
no corrosion |
| Water Absorption |
ISO 62 |
0.5% maximum |
|
Fluid Resistance
Gasoline
Lubricating Oil
Hydraulic Fluid
Water
|
>ISO 1817
|
no degradation
|
| Fungus Resistance |
ISO 846 |
no fungal growth |
Other Items
Related Items |