Cut Sheet

IMCSN
Medium Wall Heat Shrink Tubing
Product Description
3M
™
IMCSN Medium Wall Heat Shrink Tubing is
designed to provide reliable performance for electrical
splices, connections, and terminations, as well as
mechanical and environmental protection. IMCSN is
fabricated from cross-linked polyolefin. The tubing is
highly split resistant, and fast-shrinking to provide
rapid installation. The tubing comes standard with a
factory-applied adhesive/sealant.
Product Features
• Fast and easy installation
• Resists puncture and abrasion damage
• Complete environmental protection
• Versatile, a minimum number of sizes cover the
entire range of applications
• Shrink ratio 3:1
• Resists acids and alkalies
• Bonds to a wide variety of substrates
• Reliable and proven
• UV resistant
Applications
• Primary electrical insulation for solid dielectric
wire and cable rated to 1000 volts
• For indoor, outdoor or overhead use
• Direct buried or submersible
• Insulating secondary splices
• Physical protection and moisture sealing of high
voltage air insulated connectors and lugs, such as
lug connections to bus bars
• Relocation of service
• Dig-in repairs
Product Selection
Selecting 3M IMCSN tubing is easy and
straightforward. The largest tubing that provides a
tight fit when fully recovered will produce the
maximum wall thickness. Final wall thickness is
proportional to the degree of tubing recovery.
Physical and Electrical Typical Properties
Property Requirement* Test Results
Continuous Operating -55°C to 110°C -55°C to 110°C
Temperature Range
Color Black Black
Longitudinal Change + 1%, - 10% Pass
Low Temperature Flexibility No Cracking Pass
(4 hours @ -55°C)
Heat Shock No Cracking, Flowing Pass
(4 hours @ 255°C) or Dripping
2% Secant Modulus 25,000 psi min. 14,000psi
Color Stability Remain Stable Pass
(24 hours @ 175°C)
Tensile Strength 1,200 psi min. 2,400 psi
Ultimate Elongation 200% min. 475%
Dielectric Strength (V/ mil) 200 min. 5 0 0
Volume Resistivity (ohm-cm) 1 0
1 3
m i n . 1 0
1 4
* Based on MIL-I-23053/15A Class 2
Fluid Resistance / MIL-I-23053
• Minimum tensile strength, 750 psi
• Minimum dielectric strength, 200 V/mil
• Twenty-four hours at 25°C
Fluids Tensile Strength Dielectric Strength
Hydraulic Fluid Pass Pass
JP-4 Fuel Pass Pass
Lube Oil Pass Pass
5% NaCl Solution Pass Pass
Deicing Fluid Pass Pass
Engineering/Architectural Specifications
The tubing must be usable both indoors and outdoors,
in overhead, direct-buried, or submerged applications
on cables rated up to 1000 volts. It is not adversely
affected by moisture, mild acids and alkalies, fuels,
oils, ozone, or ultraviolet light. It must be compatible
with and adhere to all types of cable jackets, including
rubber, plastic, or lead. It must conform to the
requirements of UL 486 D and sections 3.4 and 4.3 of
ANSI C119.1 1986.