Heat Shrinkable Semi-conductive/insulation Tube

Heat Shrinkable Semi-conductive/insulation Tube
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Our composite heat shrink tubing is extruded, irradiated, and expanded to form a dual-wall structure of conductive and insulation materials. The red insulation layer guarantees insulation strength, while the black semi-conductive layer restores electronic shielding. It is suitable for electronic systems up to 42kV.

Dimensions
As Supplied (mm) After Recovery (mm)
Inside Diameter Wall Thickness Inside Diameter Wall Thickness
Ø30/12 ≥30 2.8±0.3 ≤12 5.8±0.3
Ø35/13 ≥35 2.5±0.3 ≤13 5.8±0.3
Ø45/16 ≥45 2.3±0.3 ≤16 5.8±0.3
Ø50/16 ≥50 2.0±0.3 ≤16 5.8±0.3
Ø55/21 ≥55 2.2±0.3 ≤21 5.8±0.3
Ø60/21 ≥60 2.0±0.3 ≤21 5.8±0.3
Ø65/26 ≥65 2.3±0.3 ≤26 5.8±0.3
Ø70/29 ≥70 2.9±0.3 ≤29 7.2±0.3
Ø75/29 ≥75 2.8±0.3 ≤29 7.2±0.3
Ø80/29 ≥80 2.7±0.3 ≤29 7.2±0.3
Ø85/29 ≥85 2.7±0.3 ≤29 7.2±0.3
Ø90/29 ≥88 2.5±0.3 ≤29 7.2±0.3
Ø100/38 ≥100 2.9±0.3 ≤38 7.2±0.3
Ø120/45 ≥120 2.9±0.3 ≤45 7.2±0.3
Technical Data of Insulation Layer
Properties Test Method Performance
Tensile strength GB1040 ≥12MPa
Ultimate elongation GB1040 ≥400%
Tensile strength after aging (heat aging 130℃, 168h) GB7141/130℃,168hrs ±20%
Ultimate elongation after aging (heat aging 130℃, 168h) GB7141/130℃,168hrs ±20%
Volume resistivity GB1410 ≥1013 Ω·cm
Dielectric strength GB1408 ≥25kV/mm
Technical Data of Semi-conductive Layer
Properties Test Method Performance
Tensile strength GB1040 ≥10MPa
Ultimate elongation GB1040 ≥300%
Tensile strength after aging (heat aging 130℃, 168h) GB7141/130℃,168hrs ±20%
Ultimate elongation after aging (heat aging 130℃, 168h) GB7141/130℃,168hrs ±20%
Volume resistivity GB1410 ≤103 Ω·cm
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