3:1 Heat Shrink Technical Specifications

Minimum Shrink Temperature: 248° F [120° C]

cross section of heat shrink tubing

Size Expanded Recovered
Internal Diameter Minimum (D) Internal Diameter Maximum (d) Minimum Total Wall Thickness (t)
in. mm in. mm in. mm
1/16" [1.5mm] 0.059 1.5 0.020 0.5 0.0157 0.40
1/8" [3mm] 0.118 3.0 0.039 1.0 0.0120 0.50
3/16" [4.5mm] 0.177 4.5 0.059 1.5 0.0212 0.54
1/4" [6mm] 0.235 6.0 0.078 2.0 0.0232 0.59
3/8" [9mm] 0.354 9.0 0.118 3.0 0.0268 0.68
1/2" [12mm] 0.472 12.0 0.157 4.0 0.0268 0.68
3/4" [18mm] 0.708 18.8 0.236 6.0 0.0303 0.77
1" [24mm] 0.945 24.0 0.315 8.0 0.0354 0.90
1-1/2" [38mm] 1.496 38.0 0.512 13.0 0.0409 1.04

 

PHYSICAL PROPERTY TEST METHOD TYPICAL VALUE
Tensile Strength (psi) ASTM D 638 1500 min.
Elongation (%) ASTM D 638 200 min.
Specific Gravity ASTM D 792 1.35 max.
Low Temperature Flexibility -55°C MIL-DTL-23053 no cracking
Heat Shock 4 hours at 250°C MIL-DTL-23053 no cracking
Heat Resistance (175°C, 168 hrs.)
Elongation (%)
ASTM D638 100 min.
Secant Modulus (psi) ASTM D 882 2.5 x 10,000 max.
Longitudinal Change (%) MIL-DTL-23053 +-5
Electrical
Dielectric Strength ASTM D 876 500 min.
Volume Resistivity ASTM D 876 1.0 x 10,000 min.
Chemical
Corrosion (175°C, 16hrs) MIL-DTL-23053 no corrosion
Water Absorption (%) ASTM D 570 0.5 max.
Fluid Resistance (23°C, 24 hrs.)
Tensile Strength (psi)
MIL-I-23053 1000 min.
Flammability UL 224 VW-1 pass
Shrink Temperature, Nominal   90°C

 

Application (Typical) General Purpose Over Expanded
Recovery Temperature 90°C
Flame Retardant YES
Continuous Operating Temperature -55° to 135° C
Flexibility Excellent
Abrasion Resistance Good
Solvent Resistance Good
Standard Colors Black, White, Red, Yellow, Blue
UL Rating & File No. (Subject 224) 125°C, 600V
VW-1 (Jacket only for dual wall)
E48762
UL Catalog No. 826 Suffix 3X

Specification reference:
MIL-I-23053/5 Class 1 and Class 3. MIL-R-46846, Type V
°C, 600 V, VW-1 File E48762 YDPU2

VW-1 flame test


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