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Sponsored Ad - 1/4" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black

Sponsored Ad - 1/4" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black

Q: Air tight? Was thinking about using this to cover flare fittings on a mini-split hvac for support.

Hi, Yes, our heat shrink tubing is air tight. If you have any other questions, please feel free to send us a direct message.

Q: what size should i get to fit (3) 10AWG wires to make an extension cord ?

Depending on the type of wire and how thick the casing on the 10 gage wire. You might get away with 3/8 but I think it would be very tight, especially if long. So be safe and use 1/2 inch.. You will b fine. Look a the wire you are getting at its specs. It should tell you major dia. Add the 3 up. 2/3rds of you total will be bare minimum . But remeber if you make it to tight before shrinking. It will be hard to slide wire through.

Product ID: 432838204

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Details

Brand
Wirefy
Material
Polyolefin
Color
Black
Product Dimensions
600"L x 0.25"W
Maximum Pressure
10 Bars
Nominal Wall Thickness
[EO] 0.5

⚡UL certified, 600V electrical safety

📏4:1 shrink ratio for precision fit

🛡️Adhesive-lined for waterproof seal

Frequently Bought Together

Wirefy 1/4" Heat Shrink Tubing - 4:1 Ratio - Adhesive Lined - Marine Grade Heat Shrink - 50 Feet Roll - Black

Wirefy 1/8" Heat Shrink Tubing - 3:1 Ratio - Adhesive Lined - a resistant Heat Shrink - Black - 50 Feet Roll

Description

🔥 Seal it tight, shine professional ⚡

GENEROUS 50 FOOT ROLL - Enough tubing to power through multiple projects without constant reordering—stay ahead of the game.
MARINE GRADE DURABILITY - Built to withstand harsh environments—perfect for outdoor, automotive, and marine projects.
ADHESIVE LINED DUAL WALL - Inner glue activates with heat to lock moisture out, while the outer layer resists abrasion and wear.
PRECISION 4 1 SHRINK RATIO - Ensures a snug, professional-grade seal every time—no loose fits, no compromises.
UL CERTIFIED HIGH VOLTAGE RATED - Safety and reliability guaranteed with 600V rating, giving peace of mind for all your electrical needs.

Wirefy’s 1/4" black heat shrink tubing features a superior 4:1 shrink ratio and adhesive-lined dual walls for a waterproof, abrasion-resistant seal. UL certified and rated for 600 volts, this 50-foot marine-grade roll is engineered for durable, professional electrical insulation in demanding environments.

Specifications

Brand	Wirefy
Material	Polyolefin
Color	Black
Product Dimensions	600"L x 0.25"W
Maximum Pressure	10 Bars
Nominal Wall Thickness	[EO] 0.5 millimeters
Outside Diameter	24 Millimeters
Item Length	600 Inches
UPC	850026973297
Manufacturer	Wirefy
Part Number	Wirefy-DW41-6-B
Item Weight	9.9 ounces
Item model number	Wirefy-DW41-6-B
Size	1/4" - 50 Feet
Style	Black
Voltage	600 Volts
Item Package Quantity	1
Certification	UL
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Air tight? Was thinking about using this to cover flare fittings on a mini-split hvac for support.

what size should i get to fit (3) 10AWG wires to make an extension cord ?

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