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9.5mm — 3:1 Adhesive-Lined Waterproof Heat Shrink
Imperial Size
3/8"
Metric
9.5mm
Roll Length
60 ft
Shrink Ratio
3:1
AWG Fit
6–8 AWG
Voltage
600V
Amazon ASIN: B0D63ZBT1B — This listing is specific to the 3/8" (9.5mm) size only
Technical Data
Compatible Wire Gauge
FITS 6–8 AWG WIRE
Alternator wires, high-current battery feeds, winch cables
Imperial Size
3/8"
Metric Size
9.5mm
Roll Length
60 ft
Shrink Ratio
3:1
Construction
Dual Wall
Inner Layer
Hot Melt Adhesive
Voltage Rating
600V
Temp Rating
-55°C to +125°C
Shrink Temp
120°C (248°F)
Full Recovery
175°C (347°F)
Material
Polyolefin
Flammability
Self-extinguishing
Color
Black
Standards
MIL-DTL-23053/4
UV Resistance
Yes
Waterproof
Yes — adhesive seal
Applications
Marine bilge pump and navigation light wiring
Automotive engine bay harness connectors
Outdoor electrical junction protection
Battery tender and charging cable terminations
Typical Wire Types for 3/8"
Alternator wires, high-current battery feeds, winch cables
Why Adhesive-Lined
Medium-gauge wire in the 6–12 AWG range is where a lot of automotive and marine installations get into trouble. These conductors carry enough current that a corroded joint means real heat — and real heat turns a bad connection into a failed one. The adhesive in dual wall tubing displaces any existing moisture at installation and creates a sealed cavity that saltwater, fuel vapors, and engine-bay grime cannot penetrate. For bilge pumps, trailer harnesses, and outdoor junction boxes, the adhesive seal is the difference between a connection that lasts a season and one that lasts a decade.
The hot-melt adhesive flows at 120°C and fills every void, bonding to the wire jacket and connector body to block moisture ingress.
600V rated polyolefin outer wall. Prevents insulation breakdown from vibration, abrasion, and UV exposure over years of service.
Rated from -55°C to +125°C continuous. Does not crack, harden, or delaminate in engine bay heat cycles or cold-weather operation.
Full Range
All 13 sizes available on Amazon. Recovered diameter is approximately 1/3 of the supplied size.
Ready to Order?
Ships from the USA via Amazon. Prime eligible. The 3/8" (9.5mm) dual wall heat shrink tubing is in stock and ready to ship — fits 6–8 AWG wire.