XLPE Heat Shrink Tube

‌Halogen-Free High-Temp Flame-Retardant Heat-Shrink Tubing ‌1. Performance Indicators‌PropertySpecificationTest Standard‌Halogen Content‌‌Br 50 ppm, Cl 50 ppm, F 100 ppm‌IEC 624

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Description

‌Halogen-Free High-Temp Flame-Retardant Heat-Shrink Tubing

‌1. Performance Indicators‌

Property	Specification	Test Standard
‌Halogen Content‌	‌Br ≤ 50 ppm, Cl ≤ 50 ppm, F ≤ 100 ppm‌	IEC 62474 / IPC-4101
‌Flame Retardancy‌	‌VW-1‌ (UL) • ‌IEC 60695-11-10 V-0‌ • Self-extinguishing ‌≤15 sec‌	UL 224 • IEC 60695
‌Temperature Range‌	‌-55°C to +200°C‌ continuous • ‌Peak 260°C‌ (short-term)	UL 224 • IEC 216
‌Smoke Density‌	‌≤15 Ds‌ (NBS smoke chamber) • Toxicity: ‌NO HCl/HBr/F emissions‌	NFPA 269 • EN 45545-2
‌Dielectric Strength‌	‌≥35 kV/mm‌ (post-recovery)	IEC 60243-1
‌Environmental Sealing‌	Waterproof: ‌IP68‌ • Salt spray: ‌1000+ hrs‌	ISO 20653 • ASTM B117
‌UV/Ozone Resistance‌	‌>2000 hrs‌ (Xenon arc) • ‌Zero cracking‌ @ 0.1 ppm ozone	ASTM G154 • ASTM D1149
‌Shrink Efficiency‌	Recovery rate: ‌≥95%‌ @ 150°C/90s	ASTM D2671

‌2. Technical Parameters‌

Parameter	Range	Tolerance
‌Material System‌	Radiation-crosslinked polyolefin + metal hydroxide flame retardants	-
‌Shrink Ratio‌	‌2:1‌ • ‌3:1‌ • ‌4:1‌	±5%
‌Pre-Shrink ID‌	1.0 mm – 120 mm	±0.2 mm (≤30mm) / ±0.7% (>30mm)
‌Wall Thickness‌	0.4 mm – 4.0 mm (post-shrink)	+15% / -10%
‌Recovery Temperature‌	‌125°C‌ (initiation) • ‌175°C‌ (full recovery)	-
‌Adhesive Liner‌	Thermoplastic sealant: ‌≤0.3 mm melt-flow thickness‌ (optional)	-
‌Colors‌	Black (standard) • Red • Yellow • Green • Custom	RAL/Pantone
‌Certifications‌	UL 224 • RoHS III • REACH • EN 45545 HL3/R22 • IMO FTP Code Part 8	-

‌3. Technical Data Sheet‌

Characteristic	Value	Unit
Tensile Strength	≥15.0	MPa
Elongation at Break	≥350	%
Volume Resistivity	≥10¹⁵	Ω·cm
Comparative Tracking Index (CTI)	≥600	V
Oxygen Index (LOI)	≥35	%
Linear Shrinkage (260°C/4h)	≤1.0	%
Thermal Conductivity	0.25 – 0.35	W/m·K

‌4. Critical Applications‌

Industry	Application	Compliance Requirement
‌Rail Transportation‌	• High-voltage traction cables • Control wiring insulation • Connector sealing	EN 45545 HL3/R22 • DIN 5510-2
‌Electric Vehicles‌	• Battery module isolation • 800V busbar insulation • Charging port protection	LV 214-2 • ISO 6722-1
‌Aerospace‌	• Engine compartment wiring • Avionic harnesses • Thermal protection sleeves	AS23053 • ABD 0031
‌Marine/Offshore‌	• Shipboard cables • Explosion-proof equipment sealing • Subsea connectors	IMO FTP Code • DNVGL-RU-SHIP
‌Nuclear Power‌	• Radiation-resistant cable bundling • Safety system components • Emergency circuits	IEEE 383 • RCC-E

‌5. Performance Comparison‌

Feature	Halogen-Free FR Tubing	PVC Heat-Shrink	Fluoropolymer
‌Halogen Content‌	‌< 100 ppm‌	≥30% Cl	None
‌Flame Smoke Toxicity‌	‌Non-toxic smoke‌ • Low opacity	Toxic HCl gas • Dense smoke	Low smoke • May emit HF
‌Continuous Temp‌	‌+200°C‌	+105°C	+200°C
‌Environmental Impact‌	Eco-friendly disposal	Hazardous waste	PFAS concerns
‌Dielectric @ 150°C‌	‌≥25 kV/mm‌	Degrades above 100°C	≥30 kV/mm

‌6. Compliance & Certifications‌

‌Fire Safety‌: UL VW-1 • IEC 60695 V-0 • NFPA 130 • EN 45545 HL3
‌Railway‌: EN 50306 • BS 6853 • NF F 16-101
‌Automotive‌: LV 214-2 • GMW 3191 • ISO 19642
‌Marine‌: IMO FTP Code Part 8 • MED 96/98/EC
‌Environmental‌: RoHS III • REACH SVHC-free • TSCA

‌Operational Guidelines‌

⚠️ ‌Critical Limitations‌:

‌Never exceed 260°C‌ during recovery (irreversible polymer degradation)
Avoid hydrocarbon solvents (toluene/xylene) – use IPA for cleaning only
Max substrate temp during install: ‌60°C‌

‌Installation Protocol‌:

‌Substrate Prep‌: Grit-blast metal surfaces • Degrease with IPA
‌Heating Equipment‌: Hot air gun (300–400°C nozzle temp) • Focused IR heater
‌Shrink Process‌:
- Axial shrinkage control: ‌≤8%‌
- Heating direction: ‌Proximal-to-distal‌
- Optimal rate: ‌4–6°C/sec‌
‌Adhesive Activation‌ (Lined Tubes): Maintain ‌130–150°C‌ for ‌120 sec‌ post-shrink

‌Customization Options‌

‌EMI/RFI Shielding‌: Copper/nickel foil laminate (90 dB attenuation @ 1 GHz)
‌High-Pressure‌: Aramid/fiberglass braid reinforcement (burst pressure >40 bar)
‌Chemical-Resistant‌: FEP/PFA inner liner for acid/solvent exposure
‌Identification‌: Pre-printed markings (UL-recognized white ink)

‌Validation Support‌:

Fire test reports (E84 Class A, IMO FTP)
Halogen content certificates (IEC 62474)
Long-term thermal aging data (IEC 60216)