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PRODUCTS

Specializing in the production of highquality silicone rubber products

PRODUCT

Specializing in the production of highquality silicone rubber products

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Medical silicone tube

Peristaltic pump silicone hose

Communication/power shrink tubing

Silicone shielding strip

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Bicycle handle cover/strap

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Detail

Silicone heat shrink tube

Our Silicone Heat Shrink Tube, manufactured in China, is designed for effective wire insulation and cable protection in a variety of electrical applications. Made from high-quality silicone, these tubes offer excellent flexibility and durability, making them suitable for both indoor and outdoor use. With their remarkable high-temperature resistance and moisture protection, our heat shrink tubing ensures long-lasting performance in demanding environments. Choose our silicone heat shrink tubes for

Product Features

• Gas-phase adhesive with two-component platinum vulcanization products have no odor

• High transparency, long-term use is not yellow and not easy to age

• Good conduction, sealing, shock absorption and mechanical and physical characteristics

• Secondary sulfurization more than 4H, in line with FDA EU requirements

• Support the back section cutting, can be cut according to the requirements of the positive and negative tolerance

• The flow rate is stable, no scale is generated after use, and it is not easy to block the pipeline

Application

Baby Daily Necessities	State Grid	BS/COM/ESS	Optoelectronics industry
mechanical seal	New energy vehicles	Home appliance	Sports equipment

Parameters

Product Features

• Gas-phase adhesive with two-component platinum vulcanization products have no odor

• High transparency, long-term use is not yellow and not easy to age

• Good conduction, sealing, shock absorption and mechanical and physical characteristics

• Secondary sulfurization more than 4H, in line with FDA EU requirements

• Support the back section cutting, can be cut according to the requirements of the positive and negative tolerance

• The flow rate is stable, no scale is generated after use, and it is not easy to block the pipeline

Application

Baby Daily Necessities	State Grid	BS/COM/ESS	Optoelectronics industry
mechanical seal	New energy vehicles	Home appliance	Sports equipment

Product Detail

Heat Shrink Silicone Tube | 2:1/3:1 Shrink Ratio | -40°C to +200°C | Yutian

Yutian · Three factories one chain – from raw silicone to finished tube

Heat Shrink Silicone Tube

High temperature & high voltage insulation · Tight fit · RoHS compliant

✓ Electronic components✓ Wire harness & terminals✓ Industrial equipment

Shrink ratio 2:1 / 3:1-40°C to +200°CDielectric strength ≥25kV/mmRoHS certifiedCustom sizes & colours

Shrink temp 100‑150°CFlame retardant optionalTensile ≥7.0 MPaFree samples

Three factories · Full industry chain synergy

🧪

Guilin Yutian

Silicone raw material

⚙️

Dongguan Huahong

Compounding & auxiliaries

🏗️

Dongguan Yutian

Precision extrusion & finishing

Raw materialCompoundingExtrusionFinished tube

Why Yutian heat shrink silicone tube

🔥

High temperature & voltage resistance

-40°C to +200°C · ≥25kV/mm dielectric strength

Withstands extreme heat and cold, resists breakdown. Ideal for high‑voltage insulation and harsh environments.

→ Safe, reliable protection

📏

Uniform shrink – tight fit

2:1 or 3:1 shrink ratio · 100‑150°C activation

Even shrinkage without bubbles or wrinkles. Conforms perfectly to irregular shapes.

→ No gaps, complete coverage

🛡️

RoHS compliant & eco‑friendly

Non‑toxic, odorless, halogen‑free

Meets international environmental standards. Safe for consumer electronics and export.

→ Worry‑free compliance

🌀

Flexible & abrasion resistant

High flexibility, tear‑resistant

Remains flexible after shrinking. Withstands friction, vibration, and long‑term aging.

→ Extended component life

🔧

Full customisation

ID 1‑80mm · custom shrink ratio · any colour

Tailored to your wire gauge, component shape, and application needs. Low tooling cost, fast sampling.

→ Exact fit for your design

Technical specifications & custom range

Parameter	Standard range	Custom range
Material	High quality heat shrink silicone (industrial / flame-retardant grade)
Shrink ratio	2:1 / 3:1	Custom ratio available
Shrink temperature	100°C – 150°C	—
Inner diameter before shrink (mm)	3 – 50	1 – 80
Inner diameter after shrink (mm)	1.5 – 25	Custom by ratio
Wall thickness (mm)	0.5 – 2.0	0.3 – 3.0
Hardness (Shore A)	60 ± 5	50 – 80
Temperature range	-40°C to +200°C	Up to 300°C optional
Dielectric strength	≥25 kV/mm	Higher on request
Tensile strength	≥7.0 MPa	Up to 9.0 MPa
Colour	Black / white / transparent	Custom colours
Certifications	RoHS, REACH, third‑party test reports available

Typical applications

💻

Electronic components

Pin insulation, capacitor/resistor encapsulation, sensor protection

🔌

Wire harness & terminals

Cable joints, terminal protection, wire bundling

🏭

Industrial equipment

Machine wiring, control cabinet, electrical interface sealing

🚗

Automotive electronics

Engine wiring harness, sensor leads, ECU pin protection

🏠

Home appliances

Internal wire insulation, heating element end caps

🔋

EV & charging piles

Charging cable insulation, battery pack wire protection

How to use heat shrink silicone tube

Select & cut

→

Slide over part

→

Heat (100‑150°C)

→

Cool & inspect

Use heat gun or oven. Heat evenly – avoid local overheating.

Made to your specification

Inner diameter before shrink 1‑80mm

Custom shrink ratio

Wall thickness 0.3‑3.0mm

Hardness 50‑80 Shore A

Any colour (Pantone matching)

Flame retardant grade optional

🎁 Cooperation benefits

📦

Free samples

Stock sizes free (shipping cost applies)
Test shrink fit before bulk order

🎨

Custom development

Sample in 7‑10 days for custom sizes/colours
Low tooling cost

⚡

Fast delivery

Stock 2‑4 days · custom 7‑10 days
Expedite available

Certifications & quality

📜

RoHS

Compliant

Certified

🌡️

High temp test

200°C aging

Passed

⚡

Dielectric test

≥25kV/mm

Verified

⭐ National High‑tech Enterprise | 🏭 ISO 9001 certified

Customer feedback

“Yutian heat shrink silicone tube shrinks evenly and fits tightly around components. Excellent insulation and high temperature resistance. RoHS compliant – perfect for our export electronics.”

— Purchasing Manager, Shenzhen Electronics Manufacturer

Frequently asked questions

What shrink ratios are available?

Standard 2:1 and 3:1. Custom shrink ratios can be developed on request.

What temperature does it shrink at?

Activation starts around 100°C; full shrink occurs at 100‑150°C using a heat gun or oven.

Is it suitable for high‑voltage applications?

Yes, dielectric strength ≥25 kV/mm. Can be used for insulation of HV wires and components.

Does it have RoHS certification?

Yes. All batches comply with RoHS. Test reports available.

Can I get a custom colour?

Absolutely. We can match Pantone colours for brand or identification needs.

How fast can I get samples?

Free samples of stock sizes within 3 days. Custom size/colour samples typically 7‑10 days, tooling fee deductible.

Need heat shrink silicone tubing for insulation or wire protection?

Contact Yutian for free samples, technical datasheets, and custom solutions.

Request a quote →

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