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Silicone Rubber Cold Shrink Breakout Boots
US$2.00
10-999 Pieces
US$0.35
1,000+ Pieces
Sample price:US$0.01/piece.Request sample
Product profile
Customization
AvailableApplication
InsulatorsColor
GreyModel NO.
W-CSBMaterial
Rubber, Silicone RubberMaximum Voltage
<10KVThermal Rating
Y 90Sample
AvailableOperating Temperature
-60~90cRated Voltage
1kvFeature1
Very Flexible, Flame-RetardantFeature2
UV Resistant, Ozone ResistantFeature3
Simple Installation, No Heat RequiresType
Insulation Sleeve & TubeChemistry
Organic InsulationCertification
ISO9001Brand
WellcoTransport Package
Standard PackageOrigin
ChinaHS Code
39173200Production Capacity
100000Key features
Flexible & Durable Material: Made of silicone rubber with 950% elongation and V-0 flame retardant rating.
Easy Installation: Simple cold shrink installation requiring no heat, pre-expanded for field use.
Superior Sealing Performance: IP67 waterproof rating with tight sealing that retains resiliency after long-term aging.
Environmental Resistance: Passed UV and Ozone resistance tests for reliable outdoor use.
Certified Quality: ISO9001 certified with UL, RoHS, and REACH compliance for safety and reliability.
Multi-Core Compatibility: Available for 3, 4, 5, and 6 conductor cables with various size options.
Professional Manufacturer: Shanghai Wellco offers 20 years of experience in R&D and production of insulation materials.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2017-05-22 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.54h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR
AI-Powered supplier vetting
SummarySHANGHAI WELLCO INTERNATIONAL LIMITED is presented as a supplier of heat-shrink and related tubing products, with automotive, electrical, medical, and other product applications. The available information indicates multiple management and product certifications, more than 10 production lines, 21–30 quality-control staff, annual heat-shrink-tube output of 10,000,000 meters, and export sales representing 90% of total sales. It reports off-peak lead times within 15 working days and peak-season fulfillment of one month. Trading records show repeated heat-shrinkable-tubing transactions with RAYCHEMRPG PRIVATE LIMITED and a transaction involving YAZAKI INDIA PRIVATE LIMITED. However, the slices do not provide sufficient evidence to assess after-sales service, financial credibility, product-development innovation, or customization capability. The supplier’s registration information appears in 2025, but the records do not establish the full operating history of the company.
Supplier typeThe supplier is identified as SHANGHAI WELLCO INTERNATIONAL LIMITED and is associated with heat-shrink tubing, cold-shrink tubing, connector gel boxes, automotive shrink products, and related items. Its stated business covers automotive, electrical and electronics, medical, sporting goods, and other sectors, and it has self-operated import/export rights with 90% of sales reportedly from exports.
CertificationsThe basic products are stated to have passed UL, SGS, ISO9001, ISO14001, and IATF16949-related standards or certifications, while the supplier management-system certifications are listed as TS 16949 and ISO 9001. This provides explicit evidence of relevant quality and management certification coverage.
Production capacityThe supplier reports more than 10 production lines, 21–30 quality-control staff, annual heat-shrink-tube output of 10,000,000 meters, off-peak lead time within 15 working days, and peak-season fulfillment within one month. These stated figures explicitly support substantial production capacity and defined fulfillment capability.
Client casesTrade records associate the supplier with YAZAKI INDIA PRIVATE LIMITED and show repeated heat-shrinkable-tubing transactions with RAYCHEMRPG PRIVATE LIMITED across several 2025 records. These named buyer records provide concrete customer evidence, although the slices do not establish order scale, duration of relationships, performance ratings, or references.
Product Q&A
Q:Is the product flame retardant?
A:
Yes, the silicone rubber breakout is flame retardant with a V-0 rating according to UL94 standards.
Q:How is the product installed?
A:
It features simple cold shrink installation that requires no heat. The product is factory expanded and mounted on removable inner supporting plastic cores, which are removed after positioning around the cable breakout area.
Q:What certifications does the product have?
A:
The product has ISO9001 certification. Additionally, the company's products have passed UL, RoHS, and REACH certifications.
Q:What is the waterproof rating?
A:
The product provides IP67 sealing performance, ensuring it is waterproof and retains resiliency even after long-term aging and exposure.
Q:Can I customize the product?
A:
Yes, customized products or products with special requirements can be produced according to customer needs, following ISO9001 and IATF16949 quality management standards.
Send Inquiry
*To:
Shanghai Wellco International Limited
Shanghai Wellco International Limited*Content:
Supplier replies will be sent to your registered email
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