LJR Thin Wall Heat Shrink Tubing
Product Summary
GREMTUBE® G63 thin wall heat shrink tubing delivers reliable insulation and protection for wires and cables in demanding applications. With 2:1 and 3:1 shrink ratios, this flexible, flame-retardant polyolefin tubing meets stringent industry standards including UL 224 VW-1 rating at 600V and railway approval to EN 45545-2.
Applications
- Wire and cable insulation
- Strain relief
- Cable identification and bundling
- Environmental protection
- Electrical component insulation
Available Colours
- Standard: Black
- Additional: Red, Blue, Green, Yellow, White
Size Range
- 2:1 Ratio: 1.0mm to 120mm diameter
- 3:1 Ratio: 1.5mm to 100mm diameter
Key Features
- High Flexibility – Conforms easily to irregular shapes and tight spaces
- Flame Retardant – VW-1 rated for enhanced safety
- Wide Temperature Range – Operating temperature from -55°C to +135°C
- Multiple Shrink Ratios – Available in 2:1 and 3:1 ratios
- Halogen-Free – Environmentally friendly formulation
- RoHS & REACH Compliant – Meets environmental regulations
Physical Properties
- Material: Cross-linked polyolefin
- Operating Temperature: -55°C to +135°C
- Shrink Temperature: +90°C
- Longitudinal Change: ±8%
- Tensile Strength (Unaged): ≥ 10.4 MPa
- Elongation at Break: ≥ 200%
Electrical Properties
- Dielectric Strength: ≥ 19.7 kV/mm
- Dielectric Withstand: 60s @ 2500V (No Breakdown)
- Volume Resistivity: ≥ 10¹⁴ Ω.cm
Certifications
- UL 224: VW-1, 600V (AC), 125°C
- MIL-I-23053/5 Class 1 and 3, 135°C
- Railway Approved: EN 45545-2 (R24 – HL3)
- UL File: E328344
Why choose LJR Heat Shrink Tubing?
- UL Certified Quality: All products carry UL File: E328344 certification
- Extensive Inventory: Wide range of sizes and shrink ratios in stock
- Technical Expertise: Over decades of experience in protective solutions
- Global Standards Compliance: Meet MIL-SPEC, Railway EN 45545-2, and automotive standards
- Fast Delivery: Same-day shipping on in-stock items
How to Choose the Right Heat Shrink Tubing
- Wall Type
- Thin Wall: Choose when flexibility and space-saving are priorities
- Dual Wall: Select for environmental sealing and moisture protection
- Shrink Ratio
- 2:1: Standard protection for uniform diameter applications
- 3:1: Accommodates irregular shapes and connector transitions
- 4:1: Maximum coverage for complex geometries
- Operating Environment
- Temperature range requirements
- Chemical exposure
- UV resistance needs
- Moisture/water exposure
- Size Selection
- Measure the largest diameter to be covered
- Add 20-30% for proper fit
- Consider recovered wall thickness
- Industry Standards
- UL recognition for electrical applications
- MIL-SPEC for aerospace/defense
- Railway EN 45545-2 for transportation
Industries We Serve
Our heat shrink tubing solutions are trusted by professionals in:
- Automotive & Transportation: Wire harness protection, sensor cables
- Industrial Equipment: Motor leads, control wiring
- Marine & Offshore: Corrosion protection, splice sealing
- Rail & Mass Transit: EN 45545-2 compliant solutions
- Telecommunications: Fiber optic protection, cable management
- Renewable Energy: Solar installations, wind turbine applications
Quality Certifications
All LJR Electronics heat shrink products meet or exceed:
- UL 224 Recognition (File: E328344)
- MIL-I-23053/5 military specifications
- RoHS & REACH compliant
- Railway EN 45545-2 fire safety standards
- Halogen-Free formulations available
Need help selecting the right product?
Our technical team is ready to assist with product selection, custom solutions, and application guidance.
Contact Our Experts:
- Phone: +1 937-388-8551
- Email: ljr.sales@ljrelectronics.com
