Flexible Flame Retardant Silicone Rubber Heat Shrinkable Tube
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Product Highlights
- High Flexibility: Soft and flexible structure ensures easy installation on complex shapes.
- High Voltage Resistance: Dielectric strength of 18 KV/mm suitable for up to 10KV applications.
- Multiple Certifications: ISO9001, IATF16949, UL, REACH, and ROHS compliant for global markets.
- Fast Production Capacity: Monthly output of 8 million sleeves with peak season lead time of one month.
- Comprehensive Warranty: Includes 2 years quality guarantee and free samples for evaluation.
- Versatile Applications: Ideal for resistors, capacitors, aerospace, medical instruments, and electrical winding.
Product Attributes
- Customization
- Available
- Application
- Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate
- Color
- White
- Model NO.
- SB-SR-HST
- Flexibility
- Flexible
- Material
- Rubber
- Maximum Voltage
- <10KV
- Thermal Rating
- H 180
- Operating Temperature
- -50-200 Degree
- Shrinkable Temperature
- 90-170 Degree
- Shrink Ratio
- 1.7:1;2:1
- Characteristics
- Soft, Flame Retardant, High Pressure
- Application Range
- Resistor;Capacitor;Aerospace
- Axial Shrinkage
- 40%
- Size
- 1.0--125mm
- Type
- Insulation Sleeve & Tube
- Chemistry
- Organic Insulation
- Classification
- Inorganic Insulation Material
- Certification
- ISO9001, IATF16949:2016
- Brand
- Sunbow
- Transport Package
- Carton
- Specification
- 100M/ROLL
- Trademark
- SUNBOW
- Origin
- China
- HS Code
- 3917310000
- Production Capacity
- 100million/Year
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Product Description

Model number:SB-SRHST
Temperature: -50ºC - 200ºC
Shrink temperature: 90ºC - 170ºC
Shrink ratio: 1.7:1/2:1
Structure
Silicone rubber heat shrinkable tube is made of silicone rubber modified with heat shrinkable silicone tube, not only has the general silicone tube itself excellent performance, high temperature, high pressure, flame retardant, soft and flexible, But also has a thermal shrinkage performance, good resistance to thorn damage mechanical properties.
Usage
It is widely use in electrical protection, resistor, capacitor, aerospace, medical instrument etc.
Specification
| Performance | Flame retardant | Normal type |
| Tensile strength MPa(Kg/cm2) | 4.2 | 4.5 |
| Elongation at break % | 300 | 300 |
| Volume resistivity Ω·m(Ω·cm) | 2×1012(2×1014) | 2×1012(2×1014) |
| Dielectric strength KV/mm | 18 | 18 |
| Use temperature rangeºC | -50~+200 | -50~+200 |
| Axial shrinkage% | 40% | 40% |
| Shrink temperature ºC | > 120 | > 120 |
| Concentricity % | ≥65 | ≥65 |
| Flammability (Oxygen Index) | ≥28 | ≥28 |
Dimension
| Size | Shrink size Before shrink | Wall thickness |
After recovery | Thickness after shrink | Packing | |
| I.D. | mm | I.D. | mm | m/roll | m/pcs | |
| Φ1.0 | 1.0 | 0.5±0.05 | 0.6 | 0.8±0.05 | 200 | |
| Φ1.5 | 1.5 | 0.5±0.05 | 0.8 | 0.8±0.05 | 200 | |
| Φ2.0 | 2.0 | 0.5±0.05 | 1.2 | 0.8±0.05 | 200 | |
| Φ2.5 | 2.5 | 0.5±0.05 | 1.5 | 0.8±0.05 | 200 | |
| Φ3.0 | 3.0 | 0.5±0.05 | 1.8 | 0.8±0.05 | 200 | |
| Φ3.5 | 3.5 | 0.5±0.05 | 2.0 | 0.8±0.05 | 200 | |
| Φ4.0 | 4.0 | 0.5±0.05 | 2.5 | 0.8±0.05 | 200 | |
| Φ4.5 | 4.5 | 0.5±0.07 | 2.8 | 0.8±0.05 | 200 | |
| Φ5.0 | 5.0 | 0.5±0.07 | 3.0 | 0.8±0.05 | 200 | |
| Φ6.0 | 6.0 | 0.5±0.07 | 3.8 | 0.85±0.05 | 100 | |
| Φ7.0 | 7.0 | 0.5±0.07 | 4.0 | 0.85±0.05 | 100 | |
| Φ8.0 | 8.0 | 0.5±0.07 | 4.8 | 0.85±0.05 | 100 | |
| Φ9.0 | 9.0 | 0.5±0.07 | 5.0 | 0.85±0.05 | 100 | |
| Φ10.0 | 10.0 | 1.0±0.1 | 6.5 | 1.7±0.1 | 100 | |
| Φ12 | 12.0 | 1.0±0.1 | 7.0 | 1.7±0.1 | 50 | |
| Φ15 | 15.0 | 1.0±0.15 | 9.0 | 1.7±0.1 | 50 | |
| Φ20 | 20.0 | 1.0±0.2 | 13.0 | 1.7±0.1 | 50 | |
| Φ25 | 25.0 | 1.0±0.2 | 15.0 | 1.7±0.1 | 50 | |
| Φ30 | 30.0 | 1.0±0.2 | 18.0 | 1.7±0.1 | 50 | |
| Φ35 | 35.0 | 1.3±0.3 | 20.0 | 2.5±0.3 | 1 | |
| Φ40 | 38.0 | 1.3±0.3 | 25.0 | 2.5±0.3 | 1 | |
| Φ50 | 50.0 | 1.3±0.3 | 30.0 | 2.5±0.3 | 1 | |
| Φ60 | 60.0 | 1.5±0.3 | 38.0 | 2.5±0.1 | 1 | |
| Φ70 | 70.0 | 1.5±0.3 | 45.0 | 3.0±0.4 | 1 | |
| Φ80 | 80.0 | 1.5±0.3 | 48.0 | 3.0±0.4 | 1 | |
| Φ90 | 90.0 | 1.5±0.3 | 52.0 | 3.0±0.4 | 1 | |
| Φ100 | 100 | 1.5±0.3 | 58.0 | 3.0±0.4 | 1 | |
| Φ110 | 110.0 | 2.0±0.5 | 63.0 | 4.0±0.0.5 | 1 | |
| Φ120 | 120.0 | 2.0±0.5 | 70.5 | 4.0±0.0.5 | 1 | |
| Φ130 | 130.0 | 2.5±0.5 | 76.0 | 5.0±0.0.6 | 1 | |
| Φ140 | 140.0 | 2.5±0.5 | 82.0 | 5.0±0.0.6 | 1 | |
| Φ150 | 150.0 | 2.5±0.5 | 88.0 | 5.0±0.0.6 | 1 |


Company introduction
1.Sunbow established in 2003 and Sunbow has two factories located in Shenzhen and Guangdong,8millions sleeves could be made in one month.2.Certifications:ISO9001:2015,IATF16949:2016,UL,REACH,ROHS,all your requirement about its certifications could be meet;
3.Fiberglass sleeving(CUL No.E333177&E333178 ROHS REACH)
4.Silicone rubber tube(UL No.E360625)
5.PVC tube(CUL No.E360625,REACH,ROHS)
6.PE heat shrink tube(UL No.E360625,REACH,ROHS)
7.PTFE tube(UL No.E360625,ROHS)
8.Expandable sleeving(UL No.E333178,ROHS)
9.FEP/PFA/PVDF tube
10.Corrugated pipe
11.Cable accessories
12.Other special tube
Service
1).Free samples for evaluation
2).Quick production&fast delivery
3).2 years quality guarantee
4).Prompt response&technical support
5).24 hours online service
Exhibitions





About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR222527". Items marked "" are certified.
Company Profile
Shenzhen Sunbow Insulation Materials MFG. Co., Ltd, established in 2003, mainly engaged in the research & Development, manufacture and sale of various insulation sleeving. And we had leading R& D engineers, had a batch of advantageous equipment and testing instruments. Now we had excess of 10 independent patents, gained high-tech enterprise in Shenzhen.
Our main products include fiberglass sleeving, silicone rubber tube, PVC tube, heat shrink tube, PTFE/FEP tube and so on. All our fiberglass sleeving had been obtained the UL and CSA certificates in 2010 (Cert No: E333178--UZIQ2, VW-1 for flame resistance requirement & E333177--UZFT2/8, 200C, 600V for thermal resistance requirement); Our heat shrink tube, silicone rubber tube and PTFE tube had been obtained UL certificate in 2013 (Cert. No. E360625); PVC tube had been obtained the UL certificates In in Apr. 2014 (Cert. No. E467953); In May. 2012, our products successfully had been passed CQC test (Certificate No. CQC12134072554). It provides security for domestic and foreign home appliance supplier in Chinese mainland market. Till now, we are the only one fiberglass sleeving manufacturer which obtained UL, CSA, and CQC certificates. Also we are the only one manufacturer which can provide certificates for all color and maximum size range (from 0.55mm to 25.4mm). Also all our products are in conformance with the European RoHS requirements, furthermore, based on European new requirements, we re-applied and obtained German PFOA and PFOS certificates and European Reach report.
Our products are widely used in H& N Motor, home appliance, electric heating equipment, Lighting, electronic instruments, wiring harness, transformer, power adapter, communication equipment, high/low voltage power distribution complete equipment, petrochemical industry, coal-mining industry, electric system and space flight and aviation area etc.
Due to business expansion, our factory moved to Gongming street, Guangming New District in Shenzhen. It occupies nearly 10, 000 square meters. We successfully passed ISO9001: 2015 and IATF16949 international quality management system, now ISO14001 system is also pushing.
Over the years, we have been enjoying good reputation in our industry by adhering to the business philosophy of "Faith, Practical, and Responsive. " We also get supports and trusts from many international well-known enterprises. Thanks greatly for so many help and cooperation from our partnership, such as Philips, Whirlpool, Conair, Emerson, GE, Black & Decker, SEB, ABB, Siemens, Electrolux, Toshiba, Panasonic, Hitachi, Mitsubishi, Samsung, China's Huawei, Haier, CRRC, and many other famous enterprises' trust directly and indirectly; Furthermore, as the second level supplier for automotive system, Sunbow products have been indexed in IMDS. We also have successfully become the qualified supplier for Volvo, Land-Rover, GM, Honda, Suzuki, Nissan, Hyundai and so on.
We know that our task is long-term and arduous, but opportunities are aside with challenges. We "Sunbow" people will take on a new look and work hard to provide our customers the best quality products, first-rate service, the most competitive price and the most reliable technical supports. Return to our customers, return on the community.
About Our Factory & Business Background
- Address
- Sunbow Industrial Park, No. 8, 2nd Industrial Zone, Xiacun Community, Gongming, Guangming New District, Shenzhen, Guangdong, China
- Terms of Payment
- LC, T/T, PayPal, Western Union, ****** payment
- International Commercial Terms(Incoterms)
- FOB, EXW, CIF
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- shenzhen, guangzhou, hongkong
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2008-04-01
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- Is the material flame retardant?
- Yes, it is made of silicone rubber with a flammability oxygen index of at least 28.
- What certifications does the product have?
- It holds ISO9001, IATF16949:2016, UL, REACH, and ROHS certifications.
- What is the maximum voltage rating?
- The maximum voltage rating is less than 10KV.
- How long is the quality guarantee?
- We provide a 2-year quality guarantee for this product.
- What is the lead time for production?
- Peak season lead time is one month, while off-season is within 15 workdays.
- Can I get free samples?
- Yes, free samples are available for evaluation.
- What are the available sizes?
- Sizes range from 1.0mm to 150mm inner diameter.
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