Cut Sheet

17
3
Heat Shrink Tubing EPS-400
Adhesive-Lined Semi-Rigid Polyolen; Shrink-Ratio 4:1
Physical
Tensile Strength 1900 PSI
Ultimate Elongation 400%
Longitudinal Change +1, –10%
Secant Modulus (2%) 33,000 PSI
Specic Gravity 1.25
*Heat Aging Elongation 175%
(168 hrs. @ 175°C)
*Heat Shock No dripping,
(4 hrs. @ 225°C) owing,
cracking
*Low Temperature Flexibility
(4 hrs. @ –55°C) No cracking
Flammability Self-extinguish
Electrical
Dielectric Strength 700 V/mil
Volume Resistivity 10
14
ohm-cm
Chemical
Corrosion Resistance
(Copper mirror) Non-corrosive
Fungus Resistance Non-nutrient
Water Absorption 0.3%
Fluid Resistance Excellent
Adhesive
Peel Strength, pli
Polyethylene 30
PVC 10
Lead 15
Aluminum 40
Corrosive Effect
(Copper mirror) Non-corrosive
Typical PropertiesStandard Sizes and Dimensions
Material testing performed to MIL-DTL-23053/4. Technical
information provided consists of typical product data and should
not be used for specication purposes. Unless otherwise noted, all
tests are performed at room temperature.
Recovered Recovered
Ordering Expanded I.D. Recovered I.D. Melt Wall Outer Wall
Size (Minimum) (Maximum) (Nominal) (Minimum)
in. in. (mm) in. (mm) in. (mm) in. (mm)
.300 .300 (7,62) .060 (1,52) .033 (0,84) .028 (0,71)
.350 .350 (8,89) .080 (2,03) .038 (0,97) .033 (0,84)
.450 .450 (11,43) .105 (2,67) .043 (1,09) .053 (1,35)
.700 .700 (17,78) .175 (4,45) .060 (1,52) .055 (1,40)
* Outer wall only.
Applicable Specication
UL File E-157227; CSA LR38227
Note: Dimensions in inches are approximate.
Product description
3M™ Heat Shrink Tubing EPS-400 is a
semi-rigid tubing offering the advantages
of integral, adhesive-lined construction.
The tubing is made from ame-retardant,
exible polyolen with an internal layer
of special thermoplastic adhesive. The
heat-shrinkable outer wall is selectively
cross-linked, while the adhesive maintains
high ow and excellent adhesion
characteristics.
When heated in excess of 121°C
(250°F), EPS-400 tubing rapidly shrinks
to a skintight t, forcing the melted
adhesive to ow and cover the substrate.
Upon cooling, the adhesive solidies,
forming a durable, non-drying, exible
and water resistant barrier. EPS-400
tubing is rated for operation at –55°C
(–67°F) to 110°C (230°F). Adhesive
reow will occur at temperatures
above 80°C (176°F).
Typical applications
EPS-400 tubing offers excellent
environmental protection for electronic
components, wire splices, wire bundles
and harness breakouts. Automotive,
truck and marine wire splices and
harness breakouts are also quickly
and easily protected from a variety
of harsh environments.
Shrink ratio
EPS-400 tubing has a 4:1 shrink ratio.
When freely recovered, the tubing will
shrink to 25% of its as-supplied diameter.
The recovered wall thickness of the
tubing is proportional to the degree
of recovery.
Standard color
Black.
Standard packaging
Four-foot lengths. Cut pieces are available
subject to factory quotation.
Ordering information
Order EPS-400 tubing by product name,
size equivalent to the expanded inside
diameter, package type and color. Always
order the largest size that will shrink
snugly over the item to be covered.
Example: EPS-400 tubing, .300", 4 ft.,
black.