3M Heat Shrink Tubing EPS-400
Adhesive-Lined, 4:1, Semi-Rigid, Polyolefin
Data Sheet
Description
™
September 2015
3M Heat Shrink Tubing EPS-400 is a medium-wall, semi-rigid tubing offering the
advantages of integral, adhesive-lined construction. The tubing is made from flame-
retardant, flexible polyolefin with an internal layer of special thermoplastic adhesive.
The heat-shrinkable outer wall is selectively cross-linked, while the adhesive
maintains high flow and excellent adhesion characteristics.
When heated in excess of 121ºC (250ºF), EPS-400 tubing rapidly shrinks to a
skintight fit, forcing the melted adhesive to flow and cover the substrate. Upon
cooling, the adhesive solidifies, forming a permanent, non-drying, flexible and water
resistant barrier. Adhesive reflow will occur at temperatures above 80ºC (176ºF).
Agency Approvals &
Self Certifications
Meets requirements of:
UL Recognized, UL File E-157227 at 600 Volts and 125 ºC maximum
CSA Recognized, CSA File LR38227
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.
EPS-400 tubing has a 4:1 shrink ratio. When fully recovered, the tubing will shrink
25% of its as-supplied diameter. The recovered wall thickness of the tubing is
proportional to the degree of recovery.
The operating temperature range is from -55ºC (-67ºF) to 110 ºC (230ºF), with a
shrink temperature minimum of 121ºC (250 ºF).
Shrink Ratio
Standard Sizes and
Dimensions
Ordering
Size
(Nominal)
.300
.350
.450
.700
Expanded I.D.
(Minimum)
In.
(mm)
.300 (7,62)
.350 (8,89)
.450 (11,43)
.700 (17,78)
Recovered I.D.
(Maximum
In.
.060
.080
.105
.175
(mm)
(1,52)
(2,03)
(2,67)
(4,45)
Total Recovered
Wall Thickness
(Nominal)
In.
.033
.038
.043
.060
(mm)
(0,84)
(0,97)
(1,09)
(1,52)
Meltable
Recovered Wall
Thickness
In.
.028
.033
.053
.055
(mm)
(0,71)
(0,84)
(1,35)
(1,40)
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3M™ Heat Shrink Tubing EPS-400
Typical Properties
Not for specifications. Values are typical, not to be considered minimum or maximum.
Properties measured at room temperature 73°F (23°C) unless otherwise stated.
Physical Property
Color
Tensile Strength
Ultimate Elongation
Longitudinal Change
Secant Modulus
(2%)
Specific Gravity
Heat Aging
(outer wall only)
168 hrs @ 175ºC
Heat shock
(outer wall only)
4 hrs @ 250 ºC
Low Temperature Flexibility
(outer wall only)
4 hrs @ -55 ºC
Flammability
Typical Value
US units (metric)
Black and other color-
coded sizes
1900 PSI
400%
+1, -10%
33,000 PSI
1.25
Elongation 175%
No dripping, flowing,
cracking
No cracking
Self-extinguishing
Electrical Property (Test Method)
Dielectric Strength
Volume Resistivity
Typical Value
US units (metric)
700 V/mil
14
10 ohm/cm
Chemical Property (Test Method)
Corrosion Resistance
(Copper mirror)
Fungus Resistance
Water Absorption
Fluid Resistance
Typical Value
US units (metric)
Non-corrosive
Non-nutrient
0.3%
Excellent
Adhesive
Peel Strength, pli
Polyethylene
PVC
Lead
Aluminum
Corrosive Effect
(Copper mirror)
Typical Value
30
10
15
40
Non-corrosive
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3M™ Heat Shrink Tubing EPS-400
Shelf Life & Storage
3M Heat Shrink Tubing EPS-400
has a 10-year shelf life from date of manufacture
when stored in a humidity controlled storage (10°C/50°F to 27°C/80°F and <75% relative
humidity).
Availability
Standard Packaging
Four-foot lengths. Cut pieces are available subject to factory quotation.
Please contact your local distributor; available from 3M.com/electrical [Where to Buy] or call
1-800-676-8381.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information
believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must
evaluate it and determine if it is suitable for your intended application. You assume all risks and liability
associated with such use. Any statements related to the product, which are not contained in 3M’s current
publications, or any contrary statements contained on your purchase order, shall have no force or effect unless
expressly agreed upon, in writing, by an authorized officer of 3M.
This product will be free from defects in material and manufacture at the time of purchase.
3M MAKES NO
OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
If this product is defective within the
warranty period stated above, your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product
or refund the purchase price of the 3M product.
Except where prohibited by law, 3M will not be liable for any
direct, indirect, special, incidental or consequential loss or damage arising from this 3M product,
regardless of the legal theory asserted.
Warranty; Limited
Remedy; Limited
Liability
3M is a trademark of 3M Company.
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Electrical Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000
800 676.8381
FAX: 800 828.9329
www.3M.com/oem
Please recycle
© 3M 2015 All rights reserved
78-8129-9269-7 Rev B
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