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#SM270 Daflex Shrink/Melt Irradiated Polyolefin Tubing (Shrink Ratio 3:1, MIL-I-23053/4 Class 3†† - UL 105°C)


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Daburn Catalog #:

Description: Daburn's dual wall polyolefin heat shrinkable tubing is designed to provide a tight moisture proof encapsulating seal. When 120°C/248°F is applied, the inner wall melts and flows, as the outer wall shrinks; forcing the melting wall to fill voids and interstices and to encapsulate the covered object. The result is a semi-rigid mass.

It is suitable as an end cap, strain relief, whip cord for ropes and may be used as a selective potting and/or molding compound over wires and cables.

Daflex SM270 series is ideal for covering splices, cable junctions and as a shield for coarse surfaces. SM270 is flame retardant. It resists oil, hydraulic fluids, acids and alkalis.

Meets or exceeds Mil-I-23053/4††, AMS3634, UL 224: 125°C, 600V, VW-1.

This series is RoHS compliant.

Daflex Shrink/Melt Irradiated Polyolefin Tubing Large Shrink Ratio
DABURN
Cat. No.
SizeI.D. As SuppliedRecovered (After Heating)Standard
Package
M23053/4
I.D. Max.Nom. Wall Thickness †
IN.MM.IN.MM.IN.MM.
SM270-1/8 1/8 0.125 3.2 0.038 1.0 0.038 0.96 100', 1000' 301
SM270-3/16 3/16 0.187 4.8 0.060 1.5 0.043 1.09 100', 1000' --
SM270-1/4 1/4 0.250 6.4 0.080 2.0 0.047 1.19 100', 1000' 302
SM270-3/8 3/8 0.375 9.5 0.120 3.1 0.050 1.27 100', 1000' --
SM270-1/2 1/2 0.500 12.7 0.157 4.0 0.055 1.40 100', 1000' 303
SM270-3/4 3/4 0.750 19.1 0.236 6.0 0.074 1.88 100', 1000' --
SM270-1" 1" 1.000 25.4 0.314 8.0 0.075 1.90 100', 1000' 304
SM270-1 1/2" 1 1/2" 1.575 40.0 0.512 13.0 0.093 2.36 100',1000' 305
† When full recovery is permitted.
†† Except for Longitudinal change.

Standard Color:
Black, Clear (not flame retardant) available to order.
Standard Length:
100', 1000' in 4 foot lengths. Additional lengths to order.
Properties
Operating Temperature:
-55°C to +110°C/-67°F to +230°F
Minimum Shrinkage Temperature:
120°C/248°F
Shrink Ratio:
3:1.
Longitudinal Change, Max.:
+5%/-15%

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