BKL Electronic 074294 Termorretrátil 3:1 Preto 12mm/4mm 25m

Protect and insulate electrical connections with reliable heat shrink tubing. The BKL Electronic 074294 provides a durable, flame-retardant polyolefin sleeve that shrinks to 33% of its original diameter when heated, creating a tight, professional seal for cables and connectors.

Who is it for

Electricians, technicians, and DIY enthusiasts who need to bundle wires, repair insulation, or add strain relief in automotive, marine, or general electrical projects.

Main features

• 3:1 shrink ratio for a secure fit over irregular shapes
• Black polyolefin material offers flexibility and abrasion resistance
• 25-metre length for multiple applications
• Operating temperature range from -55°C to 125°C
• Flame retardant for added safety

Specifications

• Initial inner diameter: 12 mm
• Shrunk inner diameter: 4 mm
• Shrink ratio: 3:1
• Length: 25 m
• Material: Polyolefin
• Colour: Black
• Dielectric strength: 15 kV/mm
• Voltage rating: 600 V
• Minimum shrink temperature: 70°C
• Full recovery temperature: 110°C

Tips

Use a heat gun at the recommended temperature and move it evenly around the tubing to achieve uniform shrinkage. Avoid overheating to prevent damage.