3:1 Heat Shrink Tubing with Adhesive Lining – Φ19.1mm Dual-Wall Cable Sleeving

Zum Zoomen über das Bild scrollen Klicke zum Zoomen auf das Bild

3:1 Heat Shrink Tubing with Adhesive Lining – Φ19.1mm Dual-Wall Cable Sleeving

HomeDIYer

Keine Bewertungen

By HomeDIYer®

Colour: Black

Length: 1M

Preis:

$11.74 USD

Lagerbestand:

Verfügbar (500 Stück), versandbereit

Menge:

Teile dieses Produkt

Deine Zahlungsinformationen werden sicher verarbeitet. Wir speichern keine Kreditkartendaten und haben auch keinen Zugang zu deinen Kreditkartendaten.

Quantity Discount Promotion

DIY Expert Support

Get fitment advice & recommendations

Mon-Fri, 8:30AM-8PM

WhatsApp Email

⚡

24-Hour Fast Ship

🚚

Arrives in 3-14 days

🌍

Global Reach

↩️

30-Day Returns

🌱 1 tree planted with every purchase

3:1 Adhesive Lined Heat Shrink Tubing Φ19.1mm — Dual-Wall Protection for Wires & Connectors

Exposed wire splices, corroded connectors, and poorly sealed cable ends are a constant headache for electricians, automotive technicians, and serious DIYers. Whether you're rewiring a boat, building a trailer harness, or protecting outdoor cable runs, standard electrical tape simply doesn't hold up. This 3:1 adhesive lined heat shrink tubing delivers a durable, moisture-resistant seal that stays put — even in harsh environments.

Each roll is a single continuous length of dual-wall heat shrink tubing with an expanded inner diameter of Φ19.1mm (≈3/4"). The outer wall is made from flexible polyolefin, and the inner wall features a hot-melt adhesive lining that flows and bonds when heat is applied. Available in lengths from 1M (≈39.4") up to 30M (≈98.4 ft), and in 8 colors — Black, White, Red, Green, Yellow, Blue, Transparent, and Orange — so you can color-code circuits or match your installation.

Typical use cases include sealing automotive wire splices and battery terminals, waterproofing marine electrical connections, protecting outdoor low-voltage cable runs, and providing strain relief on industrial cable assemblies. The 3:1 shrink ratio makes this dual-wall adhesive heat shrink tubing especially useful for covering irregular shapes, stepped connectors, and bundled wire groups that standard 2:1 tubing can't grip securely.

🔌 Compatibility: Fits wire bundles and connectors up to approximately Φ19.1mm (≈3/4") OD before shrink. Recovered inner diameter is typically around 6–7mm. Confirm your cable outer diameter before selecting a length. Compatible with standard heat guns; open-flame tools are not recommended.

✅ Key Features of These 3:1 Adhesive Lined Heat Shrink Tubes

🔒Dual-Wall Adhesive Construction — The inner hot-melt adhesive layer flows when heated, bonding to the wire jacket and forming a watertight seal that resists moisture, dust, and corrosion — critical for marine and outdoor wiring.
📐3:1 Shrink Ratio — Shrinks to one-third of its expanded diameter, giving you a wider recovery range than standard 2:1 tubing. Ideal for stepped connectors, irregular cable bundles, and large-gauge wire splices.
🎨8 Color Options for Circuit Identification — Choose from Black, White, Red, Green, Yellow, Blue, Transparent, and Orange to color-code wiring harnesses, distinguish polarity, or meet industry labeling standards.
📏Flexible Length Selection (1M–30M) — Order exactly what your project needs, from a single 1M (≈39.4") length for a quick repair to a 30M (≈98.4 ft) roll for large-scale wiring jobs, reducing waste and cost.
⚡Electrical Insulation & Strain Relief — The recovered tubing provides a firm grip on the cable jacket, adding mechanical strain relief at connection points and reducing the risk of wire fatigue or pull-out in vibration-prone environments like vehicles and machinery.
🌡️Flexible Polyolefin Outer Wall — Remains pliable after shrinking, so the finished sleeve can flex with the cable rather than cracking — an important characteristic for automotive wiring harnesses and any installation subject to movement or temperature cycling.

📐 Technical Specifications — Dual-Wall Adhesive Heat Shrink Tubing

Product Type	Dual-Wall Adhesive Lined Heat Shrink Tubing
Shrink Ratio	3:1
Expanded Inner Diameter	Φ19.1mm (≈3/4")
Recovered Inner Diameter	Typically ~6–7mm (contact us to confirm)
Wall Construction	Dual-wall: polyolefin outer + hot-melt adhesive inner
Available Lengths	1M (≈39.4"), 2M (≈78.7"), 5M (≈16.4 ft), 8M (≈26.2 ft), 10M (≈32.8 ft), 20M (≈65.6 ft), 30M (≈98.4 ft)
Available Colors	Black, White, Red, Green, Yellow, Blue, Transparent, Orange
Shrink Temperature	Typically 120–150°C (248–302°F) — see variant options
Recommended Tool	Heat gun
Typical Applications	Automotive wiring, marine electrical, outdoor cable runs, industrial cable assemblies
Flammability	See variant options
Operating Temperature Range	Contact us to confirm

⚠️ Note: Recovered inner diameter and exact wall thickness may vary slightly by color batch. If your application has tight dimensional tolerances, please contact us to confirm specifications before ordering.

❓ Frequently Asked Questions

How do I choose the right length of heat shrink tubing?

Measure the total run of wire or splice you need to cover, then add at least 10–15% extra for overlap and trimming. For example, a 1M (≈39.4") length is generally sufficient for a single automotive splice, while 5M–10M rolls suit workshop or marine wiring projects. Choose longer rolls to reduce joins and save on per-meter cost.

What shrink ratio does this tubing use, and why does it matter?

This tubing uses a 3:1 shrink ratio, meaning it shrinks to one-third of its original diameter when heated. That wider recovery range lets it accommodate irregular shapes, connectors, and bundled cables more effectively than standard 2:1 tubing.

Is this heat shrink tubing waterproof and suitable for outdoor or marine use?

Yes. The dual-wall construction includes an inner adhesive layer that melts and flows when heated, forming a moisture-resistant seal around the wire or connector. This makes it generally suitable for outdoor, marine, and automotive environments where moisture ingress is a concern.

What wire or connector sizes does Φ19.1mm tubing fit?

The Φ19.1mm (≈3/4") inner diameter before shrinking typically accommodates wire bundles, connectors, and cable assemblies up to approximately 19mm in diameter. After full shrink, the recovered inner diameter is typically around 6–7mm. Please confirm your cable OD before ordering.

What temperature is needed to shrink this tubing, and what tools can I use?

This tubing generally requires a heat source of around 120–150°C (248–302°F) to begin shrinking, with full adhesive activation typically occurring at higher temperatures. A heat gun is the recommended tool. Open flames such as lighters can cause uneven shrinkage or scorching and are not recommended.

Can I use this tubing for electrical insulation in automotive wiring?

Yes. Dual-wall adhesive-lined heat shrink tubing is widely used in automotive wiring harnesses, trailer connectors, and battery terminal protection. The adhesive inner layer bonds to the wire jacket, providing both mechanical strain relief and electrical insulation.

Does the color affect performance, or is it purely cosmetic?

Color is primarily for identification and organization — for example, using red for positive leads and black for negative in automotive or electrical panels. All color variants in this listing share the same wall thickness, shrink ratio, and adhesive properties.

🛒 Select your color and length above, then add to cart — ships from our US warehouse.

3:1 Heat Shrink Tubing with Adhesive Lining – Φ19.1mm Dual-Wall Cable Sleeving

Payment & Security

Let customers speak for us

DIY Expert Support

Beschreibung

3:1 Adhesive Lined Heat Shrink Tubing Φ19.1mm — Dual-Wall Protection for Wires & Connectors

✅ Key Features of These 3:1 Adhesive Lined Heat Shrink Tubes

📐 Technical Specifications — Dual-Wall Adhesive Heat Shrink Tubing

❓ Frequently Asked Questions

3:1 Heat Shrink Tubing with Adhesive Lining – Φ19.1mm Dual-Wall Cable Sleeving

You may also like

Recently viewed