Is the diameter on each tube the original size (pre-shrinking)?

Yes.Size is before shrinking,3/32 shrinks to 0.8mm. 1/8 shrinks to 1.1mm. 3/16 shrinks to 1.6mm. 1/4 shrinks to 2.1mm. 3/8 shrinks to 3.2mm. 1/2 shrinks to 4.2mm. 3/4 shrinks to 6.0mm

Can this be used to join two tubes together? Does the glue just seal the ends or the entire tube?

If the tubes and the heat shrink tubes fit snugly after heating them I'm sure it would work well. This is very durable heat shrink, thicker than most. Keep in mind also, it's 3:1 shrink. Glue throughout the tubing.

What is the max temperature on these heat shrink tubes? Can I put it in the car engine bay?

Operating temperature: -55℃～125℃.They can be used in an engine bay.

Our heat shrink tubing kits are produced in China,but I can say after using these on a number of projects and boat rewiring they don't leak or seem to be affected by oil/gas/saltwater,and they've held up over time which is all that matters.

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Eventronic 400 Pcs Heat Shrink Tubing Kit-3:1 Ratio Adhesive Lined,Marine Grade Shrink Wrap - Industrial Heat-Shrink Tubing - Black

Eventronic 400 Pcs Heat Shrink Tubing Kit-3:1 Ratio Adhesive Lined,Marine Grade Shrink Wrap - Industrial Heat-Shrink Tubing - Black

Product ID: 716713605

Details

Brand
Eventronic
Colour
Black
Indoor/outdoor use
Outdoor
Material
Polyvinyl
Style
Industrial

🔥3:1 shrink ratio for precise fit

⚙️400 pieces for versatile industrial use

🛡️Adhesive-lined for waterproof seal

$54.60

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Description

🔥 Seal it tight, shrink it right – the pro’s choice for flawless wiring!

ULTIMATE PROTECTION - Adhesive lining creates a waterproof, corrosion-resistant barrier for outdoor and marine environments.
TRUSTED BY THOUSANDS - 4.7-star rating from over 3,600 users proves this kit delivers consistent, high-quality performance.
DURABLE MARINE GRADE PVC - Industrial-strength material withstands harsh conditions, keeping your connections safe and secure.
PRECISION FIT EVERY TIME - 3:1 shrink ratio ensures snug, reliable coverage on wires and cables.
BULK READY FOR ANY PROJECT - 400-piece kit offers unmatched versatility for professional and DIY electrical tasks.

The Eventronic 400 Pcs Heat Shrink Tubing Kit features a 3:1 shrink ratio and adhesive lining, providing a waterproof, corrosion-resistant seal ideal for industrial, marine, and outdoor electrical applications. With durable polyvinyl chloride construction and a massive 400-piece count, this kit is designed for professionals and enthusiasts seeking reliable, versatile wire protection.

Specifications

ASIN	B0BVVMCY86
Brand	Eventronic
Built-In Media	400 Pcs Heat Shrink Tubing Kit-3:1 Ratio Adhesive Lined
Color	Black
Colour	Black
Customer Reviews	4.7 out of 5 stars 3,622 Reviews
Enclosure Material	Polyvinyl Chloride
Indoor Outdoor Usage	Outdoor
Indoor/outdoor use	Outdoor
Manufacturer	Eventronic
Material	Polyvinyl Chloride
Mfr Part Number	HST-400
Model Number	HST-400
Number of Pieces	400
Number of pieces	400
Style	Industrial
Style Name	Industrial
Unit Count	400 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$54.60

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In stock

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TrustScore 4.5 | 7,300+ reviews

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