Quadrios 25CA500 Heat Shrink Tubing with Adhesive, Transparent, 25 mm to 8 mm, 3:1, 500 mm

Electricians and maintenance technicians rely on Quadrios 25CA500 heat shrink tubing to seal and insulate cable splices in demanding environments. The transparent cross-linked polyolefin sleeve shrinks from 25 mm down to 8 mm, while the inner adhesive lining melts during heating to create a waterproof, strain-relieved seal. Whether bundling wires under the hood of a vehicle or protecting outdoor connections from moisture, this 500 mm length provides ample coverage for multiple joints.

Key specifications

• Initial diameter: 25 mm
• Shrunk diameter: 8 mm
• Shrink ratio: 3:1
• Length: 500 mm
• Material: cross-linked polyolefin with adhesive lining
• Colour: transparent
• Operating temperature: -55°C to +125°C
• Minimum shrink temperature: 110°C
• Dielectric strength: >15 kV/mm
• Tensile strength: >10.4 MPa
• Flammability rating: UL224 VW-1 (self-extinguishing)

Why choose it

The adhesive lining provides a robust environmental seal, protecting against moisture, chemicals, and abrasion. Its 3:1 shrink ratio allows it to fit over connectors with large diameter differences, while the transparent finish lets you inspect the connection after shrinking. The tubing remains flexible at low temperatures and resists common automotive fluids.

Ideal use cases

• Insulating and sealing electrical splices in automotive wiring
• Strain relief for cable entry points in industrial equipment
• Bundling and protecting cables in outdoor installations
• Repairing damaged insulation on low-voltage cables

Good to know

For best results, use a heat gun set to at least 110°C and apply heat evenly until the tubing conforms tightly and adhesive flows from the ends. The tubing is UV resistant and suitable for outdoor use.