Heat Shrink Silicone Tubing
Heat Shrink Silicone Tubing Manufacturer
Heat shrink silicone tubing is a flexible, heat-activated elastomer tube that contracts when exposed to elevated temperature, forming a tight, protective covering around cables, wire bundles, terminals and components. Unlike standard PVC or polyolefin heat shrink, silicone offers superior temperature resistance, elasticity and weatherability, making it ideal for demanding industries such as aerospace, industrial automation, electronics and telecom.
At Suconvey, we manufacture high-performance heat shrink silicone tubing with controlled shrink ratios, consistent wall integrity and excellent electrical insulation. Our products are designed to deliver long-lasting protection and dependable performance, even in severe environments.
Heat Shrink Silicone Tubes
Heat shrink silicone tubing starts as an expanded elastomeric sleeve. When heat is applied — via a heat gun, hot air tool or in an oven — the tube retracts and conforms to the underlying object, creating:
✔ mechanical protection
✔ environmental sealing
✔ insulation against moisture, dust and chemicals
✔ strain relief for connectors and terminations
Silicone’s high thermal stability means the tubing remains flexible and retains its protective properties across a very wide temperature range, far exceeding many other shrink materials.
Product Details
Heat Shrink Silicone Tubes Supplier
Key Features
- Wide Temperature Range —– Heat shrink silicone typically shrinks and performs consistently from −60°C up to +250°C or higher, depending on compound and design.
- Excellent Flexibility —– Maintains flexibility after shrinkage, reducing stress on wires, terminals or assemblies.
- Weather & UV Resistance —– Silicone resists aging, ozone, UV exposure and temperature cycling — ideal for outdoor or industrial installations.
- Superior Dielectric Properties —– Low dielectric constant and good arc resistance make it useful for electrical insulation and safety.
- Chemical Resistance —– Resists many oils, lubricants, and chemical pollutants often found in industrial settings.
- Controlled Shrink Ratio —– Available in ratios such as 2:1, 3:1 and custom ratios, giving engineers precise sizing after shrink.
- Clean & Reliable —– Minimal residue or odors during shrink; silicone’s inert surface helps maintain long-term reliability.
China Heat Shrink Silicone Tubes Manufacturer
Technical Specifications
| Heat Shrink Silicone Tubing – Typical Specifications | |
|---|---|
| Material | High-temperature silicone elastomer |
| Shrink Ratio | 2:1, 3:1 (other ratios on request) |
| Temperature Range | −60°C to +250°C |
| Dielectric Strength | High (varies by wall thickness) |
| Wall Thickness (After Shrink) | Variable — dependent on ratio & size |
| Color | Black, red, blue, clear, custom |
| Available Sizes | ID 1 mm – 50 mm & custom |
| Packaging | Reels, cut lengths, OEM labeling |
| Resistance | UV, ozone, moisture, chemicals |
Common Uses of Heat Shrink Silicone Tubing
Electrical Insulation & Wire Harness Protection
- Insulation on cable splices and crimped terminals
- Strain relief for plugs and connectors
- Protective cover for harness bundles
- Color coding for phase or function identification
Silicone’s elasticity and shrink performance reduce mechanical vibration and abrasion on wire assemblies.
Industrial & Automation Equipment
- Protective jacketing on sensors and actuators
- Shielding against oil, coolant and contaminants
- Sealing moving connectors and flexible joints
Heat-activated silicone stays pliable and retains coverage even in dynamic systems.
Aerospace, Defense & Transportation
- Thermal shielding on avionics wiring
- High-temperature harness protection
- Insulation for ground support equipment
In these environments, standard heat shrink materials often embrittle or fail under thermal cycling — whereas silicone maintains performance.
Medical & Laboratory Hardware
- Cable coverings on diagnostic instruments
- Tubing anchor points in fluid systems
- Flexible insulation for probes and sensors
Silicone’s inert nature and wide temperature tolerance give confidence in high-precision environments.
Why Choose Suconvey?
Suconvey provides more than just tubing — we offer engineering support, quality assurance and tailored supply solutions to help your project succeed:
---Deep Material Expertise
- Over 10+ years specializing in silicone tubing and hose for industrial, food, beverage and pharmaceutical markets.
- Understand performance tradeoffs for tubing under temperature, pressure, flex cycles and hygiene requirements.
---Quality from Raw Material to Delivery
- Controlled extrusion to maintain tight tolerances
- In-house inspection for wall thickness, inner/outer diameter and surface quality
- Batch traceability for consistency and audit support
---Flexible MOQ & Sample Support
- Support small and pilot orders before production scaling
- Quick turn pre-production samples to verify fit and performance
- Customized packaging and labeling per project needs
---Global Supply & On-time Delivery
- Efficient logistic planning to keep your production on schedule
- Export packing optimized for protection, cleanliness and traceability
Customization & Suconvey Services
At Suconvey, we help customers tailor silicone tubing solutions:
✔ Custom ID/OD sizes based on your assemblies
✔ Shrink ratio tuning for precise fit
✔ Special hardness or durometer for stiffness or flexibility
✔ Color options for marking and identification
✔ Reinforced versions for mechanical strength
✔ Prototype support and sampling
✔ Technical support to match fluid, temperature and installation conditions
We support OEM, ODM and project-oriented requirements with flexible MOQ and fast sampling cycles.
Packaging & Shipping Information
To protect the product during global transportation and storage, we apply export-grade packaging and provide flexible shipping solutions.
Pre-Shipment Inspection
Each batch is inspected before packaging to confirm hardness, thickness, surface condition, and visual uniformity. Batch codes are recorded and compliance documentation may be provided when required for regulatory purposes.
Packaging Method
Silicone tubes are wrapped with protective film to prevent dust, moisture, and surface damage. Several rolls are placed into reinforced cartons, which are then secured on fumigation-free pallets using straps and stretch film.
Shipment Options
We regularly ship to customers in Europe, North America, and Asia through sea freight, air freight, or express courier for urgent testing needs. Both FCL and LCL shipments are available.
Documentation Support
All necessary export documents can be provided for customs clearance, including commercial invoice, packing list, bill of lading or airway bill, certificate of origin, and food-contact compliance statements or test reports when applicable.
Sample Delivery
Material samples and short test tubes can be supplied for validation and equipment trials. Samples can be sent via DHL, FedEx, UPS, TNT, or using your appointed courier account.
After-Arrival Support
If any damage or discrepancies are discovered during unloading or inspection, customers may contact us within 7 days with photos and batch information. Our team will respond promptly to assess the situation and provide a reasonable solution.
Happy Customers
Year after year, multiple industries recognize Suconvey Rubber as a leader in quality, service, and innovation. We’re proud to be one of the top rubber products manufacturers in the world.
Related Products
Frequently Asked Questions
If your question is not listed, please contact us.
Silicone heat shrink resists higher temperatures, stays flexible at low temperatures, and offers superior UV/ozone resistance. Polyolefin typically has a narrower temperature window and can embrittle outdoors.
No — you can use common heat sources like heat guns, hot air knives or industrial ovens. No flame is recommended.
2:1 for standard fit over connectors and harnesses
3:1 for irregular shapes or larger diameter variation
We can help you pick the right ratio based on your application.
Yes — silicone heat shrink is inherently weather and UV resistant, suitable for outdoor wiring and exposed components.
Heat shrink speed depends on heat source and ambient conditions, but silicone typically begins contracting in seconds with a heat gun and completes uniformly with controlled heating.
When selecting the correct tubing, consider:
✔ Shrink ratio (e.g., 2:1 vs 3:1) — affects final fit
✔ Temperature range — based on operating and installation conditions
✔ Inner diameter before shrink — must match component size
✔ Wall thickness and electrical requirements
✔ Environmental exposure — UV, chemicals, moisture
Custom designs are available to meet specific engineering criteria.
