Product Info

Deteriorated heat shrink tubes can compromise electrical safety and production line stability. Regular inspection and timely replacement are the most cost-effective ways to prevent failures and downtime.

■ Importance of Heat Shrink Tubes
A heat shrink tube is a plastic sleeve that contracts when heated, used to cover wires, connectors, and signal cables. Its primary functions include:
・ Preventing short circuits
・ Protecting against moisture, dust, and contamination
・ Reducing impact and abrasion damage
・ Enhancing safety for operators

Though small in size, heat shrink tubes have a direct impact on electrical system reliability.

■ Common Signs of Deterioration
1. Cracks – From heat accumulation or long-term use
2. Fading or discoloration – Caused by UV exposure, heat, or chemicals
3. Hardening and brittleness – Loss of flexibility, prone to breakage
4. Loose or slack fit – Due to improper sizing or incomplete shrinking
5. Burn marks or burning smell – A critical warning of overheating or electrical leakage

■ Replacement Timeline
・ General use: Replace every 12–24 months
・ High-voltage / high-temperature use: Replace every 6–12 months
・ When abnormalities occur: Short circuits, hot spots, or insulation failure
・ Average lifespan: 3–5 years, depending on manufacturer specifications

■ Proper Inspection Methods
・ Visual inspection: Check for cracks, fading, or contamination
・ Flexibility test: Squeeze the tube; stiffness means deterioration
・ Thermal check: Use heat detectors to find abnormal hot spots
・ Maintenance records: Compare data across inspection cycles for early detection

■ Risks of Not Replacing on Time
・ Exposed electrical joints leading to corrosion and short circuits
・ Increased safety risks for workers
・ Potential damage to machinery and control systems
・ High repair costs and unexpected production stoppages

■ Recommended Product: Heat Shrink Tubes from Nissei Ushiyama (Thailand) Co., Ltd.
For industrial-grade safety and durability, Nissei Ushiyama (Thailand) offers premium heat shrink tubes designed for various applications.

Key Features
・ Excellent electrical insulation to prevent leakage
・ Waterproof and moisture-resistant for long-term protection
・ Resistant to chemicals and impact, ideal for factory environments
・ Easy installation with a standard hot air gun
・ Available in various sizes and colors for different wiring needs
・ Widely used in electronics, automotive, medical, and general manufacturing industries

■ Download the PDF for more details or contact us directly.

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