Yellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mm
Yellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mm
Yellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mm
Yellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mm
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Yellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mmYellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mmYellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mmYellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mm

Yellow Silicone Heat Shrink Tubing 1.7:1 Ratio, 200°C Rated — 1mm to 12mm

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Beschreibung

 

Yellow Silicone Heat Shrink Tubing — Flexible, High-Temp Protection for Demanding Wiring Jobs

When standard PVC or polyolefin heat shrink fails in high-heat environments, electricians, automotive technicians, and serious DIYers need a material that holds up. Exposed engine bay wiring, industrial control panels, and outdoor electrical connections all demand insulation that won't crack, stiffen, or melt under sustained heat. This yellow silicone heat shrink tubing is built for exactly those conditions.

Each order is sold by the meter in your chosen diameter and length combination. Diameters range from φ1mm (≈0.04") to φ12mm (≈0.47"), with lengths available from 1 meter (≈3.3 ft) up to 10 meters (≈32.8 ft). The 1.7:1 shrink ratio means the tubing shrinks to roughly 59% of its original inner diameter when heat is applied. The silicone construction maintains flexibility across a wide temperature range, rated for continuous use up to 200°C (392°F).

Typical use cases include automotive wiring harness repair and protection, high-temperature sensor wire insulation in industrial equipment, marine and outdoor electrical connection sealing, and DIY electronics projects where standard heat shrink would be inadequate. The bright yellow color also serves as a visual identifier in multi-wire installations.

ℹ️ Compatibility Note: This tubing is designed for use with standard round wire bundles and cylindrical connectors. Verify your wire bundle's outer diameter before selecting a size — the tubing should be approximately 20–30% larger than the bundle in its unshrunk state for a secure fit after shrinking.

✅ Key Features of These Yellow Silicone Heat Shrink Tubes

  • 🌡️200°C Continuous Rating — Withstands sustained high-temperature environments where standard polyolefin heat shrink tubing would soften or fail, including engine bays and industrial enclosures.
  • 🔄1.7:1 Shrink Ratio — Reliable, consistent shrinkage to approximately 59% of the original inner diameter, providing a snug, secure fit over wire bundles and connectors across all available sizes.
  • 🤸Stays Flexible After Shrinking — Silicone rubber remains pliable after heat application, resisting cracking in cold temperatures and vibration-heavy applications like automotive and marine wiring.
  • 🌦️UV and Moisture Resistant — Silicone's inherent resistance to UV radiation, ozone, and moisture makes this tubing a dependable choice for outdoor electrical insulation and marine wire protection.
  • 📏Wide Size Range — φ1mm to φ12mm — Nine diameter options from 1mm to 12mm cover everything from fine sensor wires to larger cable bundles, available in lengths up to 10 meters for longer runs.
  • 🟡High-Visibility Yellow Color — The consistent yellow finish makes it easy to identify specific wire groups in complex harnesses, useful for color-coded wiring systems in automotive and industrial installations.

📐 Technical Specifications — Silicone Heat Shrink Tubing

Material Silicone rubber
Color Yellow
Shrink Ratio 1.7:1
Maximum Continuous Operating Temperature 200°C (392°F)
Available Diameters (unshrunk) φ1mm, φ2mm, φ3mm, φ4mm, φ5mm, φ6mm, φ8mm, φ10mm, φ12mm
Available Lengths 1m (≈3.3 ft), 2m (≈6.6 ft), 3m (≈9.8 ft), 4m (≈13.1 ft), 5m (≈16.4 ft), 8m (≈26.2 ft), 10m (≈32.8 ft)
Activation Temperature Typically 120–150°C (248–302°F)
Wall Thickness (after shrink) See variant options
Voltage Rating Contact us to confirm
Flexibility After Shrink Remains flexible; does not become rigid
UV Resistance Yes
Moisture Resistance Yes
Sold As Per meter (select diameter and length above)
⚠️ Size Selection Tip: Not sure which diameter to choose? Measure your wire bundle's outer diameter, then select the next size up. The 1.7:1 ratio gives you a reliable shrink margin. If you're between sizes, size up for easier installation.

❓ Frequently Asked Questions

How do I choose the right diameter for my wires?

Measure the outer diameter of the wire bundle or connector you need to cover. Choose a tubing diameter that is generally 20–30% larger than the bundle before shrinking. For example, a 4mm wire bundle would typically work well with the φ5mm or φ6mm option. The 1.7:1 shrink ratio means the tubing will shrink to approximately 59% of its original diameter when heat is applied.

What temperature is needed to shrink this tubing?

Silicone heat shrink tubing typically activates at around 120–150°C (248–302°F). A heat gun set to medium-high is generally sufficient. Avoid open flames, as uneven heat can cause uneven shrinkage and may damage the tubing surface.

Can this tubing handle continuous high-temperature environments?

Yes. This silicone tubing is rated for continuous use up to 200°C (392°F), making it suitable for engine bays, industrial equipment, and other high-heat environments where standard PVC or polyolefin tubing would degrade over time.

Is this tubing suitable for outdoor or marine use?

Silicone is generally resistant to UV exposure, moisture, and ozone, making it a good choice for outdoor and marine wiring applications. It typically maintains flexibility across a wide temperature range, including cold environments where other materials may become brittle.

What is the shrink ratio and what does 1.7:1 mean?

A 1.7:1 shrink ratio means the tubing shrinks to approximately 1/1.7th of its original inner diameter when heat is applied. For example, a φ10mm tube will shrink down to roughly 5.9mm (≈0.23"). This ratio is suitable for most standard wire insulation and connector covering tasks.

How do I cut the tubing to the length I need?

Standard scissors or a utility knife work well for cutting silicone heat shrink tubing. For clean, straight cuts on larger diameters (φ8mm and above), a sharp blade and a cutting mat are recommended. The tubing can be cut before or after positioning on the wire — cut before shrinking for best results.

Is this tubing compatible with automotive wiring harnesses?

Yes. The high-temperature rating and flexibility of silicone make it well-suited for automotive wiring harness repair, sensor wire protection, and under-hood applications. It is generally compatible with standard automotive wire gauges across the φ1mm–φ12mm diameter range.

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

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