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High Performance Dual-Wall Heat Shrink Tubing

PRODUCTS > Adhesive-lined dual-wall heat shrink tubing > High Performance Dual-Wall Heat Shrink Tubing
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High Performance Dual-Wall Heat Shrink Tubing

High Performance Sealing, Waterproof & Anti-Corrosion

Application      

Wrapta-MG high performance dual-wall heat shrink tubing features a 3:1 shrink ratio and V-0 flame retardancy, offering reliable sealing, waterproofing, and corrosion protection for wire harnesses, marine cables, and metal pipes. With outstanding insulation and mechanical strength, Wrapta-MG ensures long-term safety and performance in demanding environments, making it the preferred solution for high-reliability applications.

     

Features and Benefits

• Shrink ratio 3:1

• V-0 flame retardant

• Excellent waterproof, moisture, and corrosion resistance, strong adhesive layer

• High strength and elongation, heat aging resistant, excellent insulation

• Suitable for wire harnesses, marine cables, and metal pipes


PropertyRequirementTest MethodTypical Data
Operating temperature//-55℃ to +135℃
Min. Shrink temperature//+80℃
Full recovery temperature//+110 ℃
Tensile strength≥10.4MPaGJB 7270-2011≥10.4MPa
Elongation at break≥300%GJB 7270-2011≥500%
Elongation at break after agingNo CrackingGJB 7270-2011No Cracking
Longitudinal shrink ratio-10%~+10%GJB 7270-2011-5%~+5%
Heat shockNo CrackingGJB 7270-2011(250℃/4 hrs)No Cracking
Low-temperature flexibilityNo CrackingGJB 7270-2011(-55℃/4 hrs)No Cracking
Dielectric voltage withstandNo BreakdownGJB 7270-2011(2500v, 60s)No Breakdown
Volume resistivity≥1012Ω·cmGB/T 7113.2-2005≥1012Ω·cm
FlammabilitySelf-Extinguishing within 60sGB/T 7113.2-2005Pass
Copper corrosionNo CorrosionGJB 7270-2011Pass
Salt sprayThe outer layer exhibits no cracks, seepage, or drippingGJB 150.11-1986Pass
Damp heatThe outer layer exhibits no cracks, seepage, or drippingGJB 150.11-1986Pass
MildewGrade ≥ 1GJB 150.11-1986Pass


Product Dimension

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Table A. Product Dimensions (Thick-Wall）
Shrink RatioPart No.Size (Φ mm)As supplied (mm)After recovered (mm)Standard length (m)
I.D. min (D)I.D. max (d)
3:1Wrapta-WG-3.2Φ3.23.20.40±0.081.00±0.20
Wrapta-WG-4.8Φ4.84.80.40±0.081.00±0.20
Wrapta-WG-6.4Φ6.46.40.40±0.101.00±0.20
Wrapta-WG-7.9Φ7.97.90.50±0.101.25±0.20
Wrapta-WG-9.5Φ9.59.50.52±0.101.40±0.20
Wrapta-WG-12.7Φ12.712.70.68±0.101.76±0.30
Wrapta-WG-15.4Φ15.415.40.70±0.101.80±0.30
Wrapta-WG-19. 1Φ19. 119. 10.80±0.102.20±0.30
Wrapta-WG-25.4Φ25.425.40.95±0.152.54±0.40
Wrapta-WG-31.8Φ31.831.80.95±0.152.54±0.40


Custom sizes and colors are available upon request. Technical specifications are subject to change without prior notice. Minimum order quantities (MOQ) may differ from standard packaging quantities.


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