Quadrios 25CA491 Adhesive-Lined Heat Shrink Tubing 3:1, White, 25.4 mm Diameter, 1.2 m Length

Exposed wire splices, connectors, and cable joints are vulnerable to moisture, corrosion, and mechanical stress. This adhesive-lined heat shrink tubing solves that by creating a sealed, insulated, and strain-relieved covering that locks out water and contaminants.

Who is it for

Electricians, automotive technicians, marine installers, and DIY enthusiasts who need a reliable waterproof seal for electrical connections in harsh environments. It suits both professional harness building and field repairs.

Main features

• 3:1 shrink ratio for tight, secure fit over irregular shapes
• Inner adhesive lining melts during shrinking to form a waterproof barrier
• Cross-linked polyolefin material offers excellent electrical insulation and chemical resistance
• Flame-retardant and self-extinguishing for enhanced safety
• Wide operating temperature range from -55°C to +125°C
• Halogen-free and RoHS compliant

Specifications

• Colour: White
• Inner diameter before shrinking: 25.4 mm
• Inner diameter after shrinking: 8.4 mm
• Length: 1.2 m
• Shrink ratio: 3:1
• Material: Cross-linked polyolefin
• Adhesive lined: Yes
• Minimum shrink temperature: +110°C
• Operating temperature range: -55°C to +125°C
• Dielectric strength: >15 kV/mm
• Voltage rating: 600 V
• Flame retardant: Yes (self-extinguishing)
• Waterproof seal: Yes
• Chemical resistant: Yes
• Halogen-free: Yes
• RoHS compliant: Yes

Tips

Use a heat gun set to at least 110°C and apply heat evenly, starting from the centre and moving outward to avoid air pockets. Ensure the tubing overlaps the insulation on both sides of the splice for a complete seal.