Product Description
3MFP-301 Tubing offers an outstanding
balance of electrical, physical and
chemical properties for a wide variety of
industrial and military applications. Rated
for 135°C continuous operation, all
FP-301 Tubing is split resistant,
mechanically tough, easily marked and
resists cold flow.
FP-301 Tubing meets MIL-DTL-23053/5
Class 1 & 2 and AMS-3636, AMS-3637
requirements. It is ULRecognized and
CSACertified at 600 volts @ 125°C (UL
File Nos. E-39100 and E-69751; CSANo.
38227).
FP-301 Tubing is rated for continuous
operation from –55°C (–67°F) to 135°C
(275°F) and withstands elevated
temperatures to 300°C (572°F) for short
periods. Minimum shrink temperature for
all FP-301 Tubing is 100°C (212°F).
FP-301 Tubing
Flexible Polyolefin
Data Sheet
Standard Sizes and Dimensions
Ordering Expanded ID Recoverd ID Recoverd Wall
Size Minimum Maximum Thickness
(Nominal)
in. (mm) in. (mm) in. (mm)
3 / 6 4 . 0 4 6 ( 1 , 1 7 ) . 0 2 3 ( 0 , 5 8 ) . 0 1 6 ( 0 , 4 1 )
1 / 1 6 . 0 6 3 ( 1 , 6 0 ) . 0 3 1 ( 0 , 7 9 ) . 0 1 7 ( 0 , 4 3 )
3 / 3 2 . 0 9 3 ( 2 , 3 6 ) . 0 4 6 ( 1 , 1 7 ) . 0 2 0 ( 0 , 5 1 )
1 / 8 . 1 2 5 ( 3 , 1 8 ) . 0 6 2 ( 1 , 5 7 ) . 0 2 0 ( 0 , 5 1 )
3 / 1 6 . 1 8 7 ( 4 , 7 5 ) . 0 9 3 ( 2 , 3 6 ) . 0 2 0 ( 0 , 5 1 )
1 / 4 . 2 5 0 ( 6 , 3 5 ) . 1 2 5 ( 3 , 1 8 ) . 0 2 5 ( 0 , 6 4 )
3 / 8 . 3 7 5 ( 9 , 5 3 ) . 1 8 7 ( 4 , 7 5 ) . 0 2 5 ( 0 , 6 4 )
1 / 2 . 5 0 0 ( 1 2 , 7 0 ) . 2 5 0 ( 6 , 3 5 ) . 0 2 5 ( 0 , 6 4 )
3 / 4 . 7 5 0 ( 1 9 , 0 5 ) . 3 7 5 ( 9 , 5 3 ) . 0 3 0 ( 0 , 7 6 )
11 . 0 0 0 ( 2 5 , 4 0 ) . 5 0 0 ( 1 2 , 7 0 ) . 0 3 5 ( 0 , 8 9 )
1 - 1 / 2 1 . 5 0 0 ( 3 8 , 1 0 ) . 7 5 0 ( 1 9 , 0 5 ) . 0 4 0 ( 1 , 0 2 )
22 . 0 0 0 ( 5 0 , 8 0 ) 1 . 0 0 0 ( 2 5 , 4 0 ) . 0 4 5 ( 1 , 1 4 )
33 . 0 0 0 ( 7 6 , 2 0 ) 1 . 5 0 0 ( 3 8 , 1 0 ) . 0 5 0 ( 1 , 2 7 )
44 . 0 0 0 ( 1 0 1 , 6 0 ) 2 . 0 0 0 ( 5 0 , 8 0 ) . 0 5 5 ( 1 , 4 0 )
Typical Applications
FP-301 Tubing is typically used as a
shrink-fit electrical insulation over cable
splices and terminations. It is also used for
lightweight wire harness covering, wire
marking, wire bundling, component
packaging and fire-resistant covering.
Shrink Ratio
FP-301 polyolefin tubing has a 2:1 shrink
ratio. When freely recovered, the tubing
will shrink to 50% of its as-supplied
internal diameter. The recovered wall
thickness of the tubing is proportional to
the degree of recovery.
High expansion-ratio FP-301 Tubing
meeting MIL-DTL-23053/5 Class 1
requirements for overexpansion is
available subject to factory quotation.
Standard Colors
FP-301, Class 1 (flame retardant)–black,
white, red, blue, green (1/16 "-1" green
only) and yellow. FP-301, Class 2 (non-
flame retardant)–clear. Other colors
available subject to factory quotation.
Standard Packaging
Four-foot lengths, large spools
(21" diameter) and small spools
(8-1/2" diameter).
Ordering Information
Order FP-301 by product name, size
equivalent to expanded inside diameter,
package type and color. Always order the
largest size that will shrink snugly over the
item to be covered.
Example: FP-301, 1/4", 4 ft., white.
P h y s i c a l
Tensile Strength 2400 PSI
Ultimate Elongation 4 0 0 %
Longitudinal Change ± 5 %
Secant Modulus
( 2 % ) 13,000 PSI
Specific Gravity 1 . 3( B l a c k )
.93 (Clear)
Heat Aging E l o n g a t i o n
(336 hrs. @ 175°C) 1 7 5 %
Heat Shock No dripping,
(4 hrs. @ 250°C) cracking,
passes mandrel
wrap test
Low Temperature Flexibility
(4 hrs. @ –55°C) No cracking
F l a m m a b i l i t y S e l f - e x t i n g u i s h
meets UL2 2 4
A l l - Tu b i n g
Flame Te s t
(Class 1 only)
E l e c t r i c a l
Dielectric Strength 900 V/mil
Volume Resistivity 1 01 5 o h m - c m
C h e m i c a l
Corrosive Eff e c t N o n - c o r r o s i v e
Solvent Resistance
Tensile Strength 1000 PSI
Dielectric Strength 400 V/mil
Water A b s o r p t i o n 0 . 2 %
Fungus Resistance N o n - n u t r i e n t
Typical Properties
Technical information provided consists of typical product data and
should not be used for specification purposes. Unless otherwise
noted, all tests are performed at room temperature.
Applicable Specification
MIL-DTL-23053/5, Class 1, 2; AMS-3636, A M S - 3 6 3 7 ;
U L File E-39100, E-69751; CSALR38227; A B S