3M EC-1, EC-2, EC-3, EC-4 Data Sheet

Page 1 of 1

Cold Shrink
EC-Series End Caps

Data Sheet

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Product Description

3M Cold Shrink End Caps environmentally seal and
mechanically protect exposed cable ends using no tools,
mastics or tapes. They are close-ended, tubular rubber
sleeves that are factory expanded and loaded onto a
removable core. When positioned over the end of a

Removal

Once installed, the 3M Cold Shrink End Caps can be
easily removed from the cable. Simply lift the edge of
the end cap, slice the material with a utility knife and the
end cap comes off cleanly, leaving no adhesive residue

or grease.
cable, or other cylindrical object, the core is removed to
provide a reliable seal which protects your cable ends
from environmental damage. They are easily installed
and cleanly removable. Whether in transit from the
manufacturer, stored in the cable yard, or in process in a

Maintenance

3M Cold Shrink EC-Series End Caps are stable under

normal storage conditions. Normal storage and stock

rotation are recommended.
trench, your cable ends are protected from exposure to
moisture, contamination and corrosion. Four different

Properties

end caps are available to accommodate a wide range of
sizes.

Test Methods Typical Value

Colour Black

Features

Simple and fast installation, no tools required.


 Accommodates size ranges from 11.6mm – 84.3mm.

Good abrasion resistance.


 Seals tight, retains resiliency and pressure even after

prolonged years of ageing and exposure.
Water-resistant.



No mastic or tape required.


 No torches or heat required.

Resists fungus.



Resists acids and alkalis.


 Resists ozone.

Easily removed.



No training required for installation.



Applications

The 3M Cold Shrink EC-Series End Caps protect cables,
pipes and other cylindrical objects from exposure to
moisture, contamination, corrosion, ozone, ultra-violet
radiation, physical contact and other environmental
hazards.

Installation

The 3M Cold Shrink EC-Series End caps install quickly
and cleanly without flame or grease. Cold Shrink end
caps are factory expanded on removable inner­supporting plastic cores. Once the end cap is positioned
for installation around the end of a cable, the supporting
core is unwound and removed. With the core removed,
the live-memory action of the specially formulated
material shrinks the end cap into position. The constant
radial pressure of the Cold Shrink material ensures a
durable environmental seal. The Cold Shrink material

300% Modulus (ASTM D-412-75) 480 psi
Ultimate Tensile (ASTM D-412-75)

1400 psi
Original
Ultimate Elongation (ASTM D-412-

750%

75) Original
Die C tear (ASTM D-624C-73)

150 pli
Original
Fungus Resistance (ASTM G-21) 28

No Growth
days exposure
Moisture Absorption 7 days @90°C
in H

O

2

1.8% wt. Gain

Selection Chart

Product Number Use Range (mm)

EC-1 11.6 – 20.9
EC-2 15.9 – 30.1
EC-3 26.0 – 49.2
EC-4 45.5 – 84.3

Important Notice

Technical information provided by 3M is based on experience and/or tests
believed to be reliable, but their accuracy is not guaranteed and the results may
not be relevant to every user’s application. For this reason 3M does not accept
responsibility or liability, direct or consequential, arising from reliance upon any
information provided and the user should determine the suitability of the products
for their intended use. Nothing in this statement will be deemed to exclude or
restrict 3M’s liability for death or personal injury arising from its negligence. All
questions of liability relating to 3M products are governed by the seller’s terms of
sale subject where applicable to the prevailing law. If any goods supplied or
processed by or on behalf of 3M prove on inspection to be defective in material
or workmanship, 3M will (at its option) replace the same or refund to the Buyer
the price paid for the goods or services. Except as set our above, all warranties
and conditions, whether express or implied, statutory or otherwise are excluded to
the fullest extent permissible at law. 3M is a trademark of the 3M Company.
Printed in the UK. © 3M United Kingdom PLC, 2001

resists abrasion, fungus, acids or alkalis, and retains its
resiliency for years. Freezing or overheating due to
ambient temperatures encountered during shipping or
storage does not impair the end caps.

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Electrical Products Sales Office Sales Office

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