3M™ Heat Shrink Tubing EPS-300
Adhesive-Lined, 3:1, Flexible, Polyolefin
Data Sheet
Description
November 2018
3M™ Heat Shrink Tubing EPS-300 is a 3:1 thin-wall, flexible tubing offering the
advantages of integral, adhesive-lined construction. The tubing is made from flameretardant, flexible polyolefin with an internal layer of special thermoplastic adhesive.
The heat-shrinkable outer wall is selectively cross-linked, while maintaining the high
flow and excellent adhesion of the inner sealant liner.
When heated in excess of 121ºC (250ºF), 3M EPS-300 tubing rapidly shrinks to a
skintight fit, forcing the melted adhesive lining to flow and cover the substrate. The
adhesive forms a flexible bond with a wide variety of rubbers, plastics and metals.
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
• UL Recognized (all colors except clear), UL File E-157227 at 600 Volts and 125ºC
maximum
• CSA Recognized, CSA File LR38227
• For RoHS and REACH information, please visit www.3M.com/regs
Applications
3M EPS-300 tubing offers excellent environmental protection for electronic
components, wire splices, wire bundles and harness breakouts. Automotive, truck
and marine wiring splices and harness breakouts are quickly and easily protected
from harsh environments.
Shrink Ratio
3M EPS-300 tubing has a 3:1 shrink ratio. When freely recovered, the tubing will
shrink 33% 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 110ºC (230ºF), with a
shrinking temperature minimum of 121ºC (250ºF).
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3M™ Heat Shrink Tubing EPS-300
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
Typical Value
US units (metric)
Tensile Strength
2100 PSI
Ultimate Elongation
450%
Longitudinal Change
+1, -15%
Secant Modulus (2%)
17,000 PSI
Specific Gravity
1.3
Heat Aging (outer wall only)
168 hrs @ 175ºC
Heat shock (outer wall only)
4 hrs @ 225 ºC
Low Temperature Flexibility (outer wall only)
4 hrs @ -55 ºC
Elongation 175%
No dripping, flowing,
cracking
No cracking
Flammability
Self-extinguishing, meets
UL224 All-Tubing Flame
Test (jacket)
Electrical Property (Test Method)
Typical Value
US units (metric)
Dielectric Strength
700 V/mil
Volume Resistivity
1014 ohm/cm
Chemical Property (Test Method)
Typical Value
US units (metric)
Corrosion Resistance (Copper mirror)
Non-corrosive
Fungus Resistance
Non-nutrient
Water Absorption
0.3%
Fluid Resistance
Excellent
Adhesive
Typical Value
Peel Strength, pli
Polyethylene
PVC
Lead
Aluminum
30
10
15
40
Corrosive Effect (Copper mirror)
Non-corrosive
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3M™ Heat Shrink Tubing EPS-300
Standard Sizes and
Dimensions
Standard Colors
Ordering
Size
(Nominal)
Expanded I.D.
(Minimum)
In.
(mm)
1/8
3/16
1/4
3/8
1/2
3/4
1
1-1/2
.125
(3,18)
.187
(4,75)
.250
(6,35
.375
(9,53)
.500
(12,70)
.750
(19,05)
1.000 (25,40)
1,500 (38,10)
Recovered I.D.
(Maximum
In.
(mm)
.040
.062
.080
.120
.160
.250
.320
.510
(1,02)
(1,57)
(2,03)
(3,05)
(4,06)
(6,35)
(8,13)
(12,95)
Total Recovered
Wall Thickness
(Nominal)
In.
(mm)
.040
(1,02)
.040
(1,02)
.040
(1,02)
.055
(1,40)
.070
(1,78)
.085
(2,16)
.100
(2,54)
.100
(2,54)
Meltable
Recovered Wall
Thickness
In.
(mm)
.020
(0,51)
.020
(0,51)
.020
(0,51)
.025
.030
.035
.040
.040
(0,62)
(0,76)
(0,89)
(1,02)
(1,02)
Black, Red
Also available in Clear, White and Yellow. Price, MOQ and Lead Time will vary for
these colors. Please contact Local Sales Representative or Customer Service
Representative for more information.
NOTE: The clear tubing is not flame retardant or UL listed.
Shelf Life & Storage
3M™ Heat Shrink Tubing EPS-300 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
