Purple Heat Shrink Tubing 1mm–50mm | 2:1 Ratio Cable Heatshrink Sleeving

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Purple Heat Shrink Tubing 1mm–50mm | 2:1 Ratio Cable Heatshrink Sleeving

Name: Purple Heat Shrink Tubing 1mm–50mm | 2:1 Ratio Cable Heatshrink Sleeving
Brand: HomeDIYer
Price: 2.11 USD
Availability: InStock

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Size (unshrunk): 1mm

Length: 1m

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$2.11 USD

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Verfügbar (500 Stück), versandbereit

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Purple Heat Shrink Tubing — Color-Coded Insulation for Automotive, Marine & DIY Wiring

Tracking down the right wire in a tangled harness wastes time and causes frustration — especially mid-project. Whether you're a professional auto electrician, a marine rigger, or a hands-on DIYer rewiring a trailer or home workshop, having a reliable, color-coded insulation solution makes every job cleaner and faster. This purple heat shrink tubing gives you a distinct visual marker that stands out from standard black or red sleeving, so your circuits stay organized and identifiable long after the job is done.

Each length is cut from polyolefin heat shrink tubing with a 2:1 shrink ratio, meaning it shrinks to approximately half its listed (unshrunk) diameter when heat is applied. Available in 21 diameter sizes from 1mm (≈3/64") up to 50mm (≈2"), and in lengths of 1m (≈3.3 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), 25m (≈82 ft), 50m (≈164 ft), and 100m (≈328 ft) — so you can order exactly what your project requires, from a single repair to a full production run.

Typical use cases include automotive wiring harness repairs and color-coding, marine electrical connections requiring moisture resistance, RC hobby builds and electronics prototyping where wire identification matters, and industrial cable management where circuit tracing needs to be fast and reliable.

🔌 Compatibility: Fits standard round wire, cable bundles, connectors, and terminals. Select the unshrunk diameter that is slightly larger than your cable's outer diameter — the 2:1 ratio will bring it down to a snug fit. Works with a standard heat gun (recommended) or hot air station.

✅ Key Features of These Purple Heat Shrink Tubes

🎨Distinctive Purple Color — Ideal for color-coding wiring circuits in automotive harnesses, control panels, and multi-wire installations where quick visual identification reduces troubleshooting time.
🔥2:1 Shrink Ratio — Shrinks to approximately half its listed diameter, providing a firm, uniform grip around wires, terminals, and connectors without over-compression or gaps.
🛡️Polyolefin Construction — Flame-retardant polyolefin material generally meets UL224 or equivalent standards, offering reliable electrical insulation and resistance to oils, solvents, and abrasion in automotive and marine environments.
📏Wide Size Range (1mm–50mm) — Covers everything from fine instrument wiring at 1mm (≈3/64") to large cable bundles at 50mm (≈2"), eliminating the need to source multiple products for a single project.
📦Flexible Length Options — Available in 1m through 100m cuts, so hobbyists can grab a short length for a single repair while workshops and production lines can stock bulk rolls cost-effectively.
⚡Consistent Wall Thickness — Uniform wall thickness across the full length ensures even shrinkage and consistent insulation performance, reducing the risk of weak spots along repaired or sleeved cable runs.

📐 Technical Specifications — Heat Shrink Tubing

Material	Polyolefin (flame-retardant)
Color	Purple
Shrink Ratio	2:1
Size (unshrunk diameter)	1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 14mm, 16mm, 20mm, 25mm, 30mm, 40mm, 50mm
Available Lengths	1m (≈3.3 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), 25m (≈82 ft), 50m (≈164 ft), 100m (≈328 ft)
Shrink Temperature	Typically 120°C (248°F); activation begins around 70–90°C (158–194°F)
Operating Temperature Range	Typically −55°C to +125°C (−67°F to +257°F)
Flame Retardancy	Generally meets UL224 or equivalent — see variant datasheet or contact us to confirm
Recommended Application Tool	Heat gun or hot air station
Typical Applications	Automotive wiring, marine electrical, electronics, cable management, DIY repairs
Certifications	Contact us to confirm

⚠️ Size Note: Sizes listed are unshrunk (before heat is applied). After shrinking, the tubing will be approximately half the listed diameter. Always measure your cable's outer diameter and select a tubing size that fits over it comfortably before shrinking.

❓ Frequently Asked Questions

How do I choose the right diameter for my heat shrink tubing?

Measure the outer diameter of the object you want to cover, then choose a tubing size that is slightly larger before shrinking. With a 2:1 ratio, the tubing shrinks to approximately half its listed (unshrunk) diameter. For example, 6mm tubing will shrink down to roughly 3mm (≈1/8"). Always size up if you're between sizes to ensure easy installation before applying heat.

What temperature is needed to shrink this tubing?

Polyolefin heat shrink tubing generally activates at around 70–90°C (158–194°F) and fully shrinks at approximately 120°C (248°F). A heat gun is recommended for even, controlled shrinking. Avoid open flames, which can cause uneven shrinkage or scorching of the tubing surface.

How strong is the insulation provided by this heat shrink tubing?

Polyolefin heat shrink tubing typically provides a dielectric strength of around 15–20 kV/mm, making it suitable for most low- to medium-voltage automotive, marine, and household wiring applications. For high-voltage industrial use, please contact us to confirm suitability for your specific voltage requirements.

Can this tubing be used outdoors or in marine environments?

Standard polyolefin heat shrink tubing generally offers good resistance to moisture and UV exposure for typical outdoor use. However, for prolonged saltwater or harsh marine environments, we recommend using adhesive-lined (dual-wall) tubing for a watertight seal. Contact us to confirm the best option for your specific application.

Is this heat shrink tubing flame-retardant?

Yes, polyolefin heat shrink tubing is generally manufactured to meet flame-retardant standards (typically UL224 or equivalent). It will self-extinguish when the heat source is removed in most cases. Contact us to confirm specific certifications if required for your application or compliance documentation.

What is the difference between 2:1 and 3:1 heat shrink tubing?

A 2:1 ratio means the tubing shrinks to half its original diameter — ideal for standard wire bundling, insulation, and strain relief. A 3:1 ratio shrinks to one-third, offering more coverage flexibility for irregular shapes or larger diameter differences. This product is 2:1 ratio, which suits the majority of automotive and DIY wiring tasks.

Can I use this tubing for automotive wiring repairs?

Yes. This heat shrink tubing is well-suited for automotive wiring repairs, connector insulation, and cable management. The purple color is also useful for color-coding specific circuits or wire groups in a vehicle harness, making future diagnostics and repairs significantly faster.

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

Purple Heat Shrink Tubing 1mm–50mm | 2:1 Ratio Cable Heatshrink Sleeving

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Beschreibung

Purple Heat Shrink Tubing — Color-Coded Insulation for Automotive, Marine & DIY Wiring

✅ Key Features of These Purple Heat Shrink Tubes

📐 Technical Specifications — Heat Shrink Tubing

❓ Frequently Asked Questions

Purple Heat Shrink Tubing 1mm–50mm | 2:1 Ratio Cable Heatshrink Sleeving

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