





1/2" ID Heat Shrink Tubing - 3:1 Ratio - Dual Wall Adhesive - 12" Length - 4 or 12 Pack
This 1/2" ID 3:1 dual wall adhesive-lined heat shrink tubing is designed for 8–4 AWG wire insulation and environmental sealing. Its flexible polyolefin outer layer and internal thermoplastic adhesive form a tight, weather-resistant seal when heated, making it ideal for protecting splices, breakouts, and terminals in harsh automotive and marine environments.
Specifications & Features
- Wire Compatibility: 8–4 AWG
- Shrink Ratio: 3:1
- Pre-shrink Inner Diameter: 1/2"
- Recovered Inner Diameter: 0.160"
- Wall Type: Dual wall with internal thermoplastic adhesive lining
- Material: Flame-retardant polyolefin (outer) with adhesive (inner)
- Length: 12" per piece
- Available Colors: Black, Red, Clear
- Adhesive lining melts when heated to seal out water and contaminants
- Highly flexible tubing conforms to complex wire shapes and junctions
- Recommended for marine wiring, vehicle harnesses, and electronic repairs
Original: $7.49
-65%$7.49
$2.62Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
This 1/2" ID 3:1 dual wall adhesive-lined heat shrink tubing is designed for 8–4 AWG wire insulation and environmental sealing. Its flexible polyolefin outer layer and internal thermoplastic adhesive form a tight, weather-resistant seal when heated, making it ideal for protecting splices, breakouts, and terminals in harsh automotive and marine environments.
Specifications & Features
- Wire Compatibility: 8–4 AWG
- Shrink Ratio: 3:1
- Pre-shrink Inner Diameter: 1/2"
- Recovered Inner Diameter: 0.160"
- Wall Type: Dual wall with internal thermoplastic adhesive lining
- Material: Flame-retardant polyolefin (outer) with adhesive (inner)
- Length: 12" per piece
- Available Colors: Black, Red, Clear
- Adhesive lining melts when heated to seal out water and contaminants
- Highly flexible tubing conforms to complex wire shapes and junctions
- Recommended for marine wiring, vehicle harnesses, and electronic repairs














