4:1 Heat Shrink Technical Specifications


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
Dielectric Strength ASTM D 876 500 min.
Volume Resistivity ASTM D 876 1.0 x 10,000 min.
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


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
UL Rating & File No. (Subject 224) 125°C, 600V
VW-1 (Jacket only for dual wall)
UL Catalog No. 826 Suffix 3X

Specification reference:
MIL-I-23053/5 Class 1 and Class 3. MIL-R-46846, Type V
UL 224 125°C, 600 V, VW-1 File E48762 YDPU2

VW-1 flame test

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