| Customization: | Available |
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| Application: | Insulators |
| Color: | Black, Red, Yellow, Blue, Green |
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Material: Cross-linked modified polyolefin
Operating temperature: -55ºC~135ºC
Minimum shrink temperature: 70ºC
Minimum fully recovery temperature: 120ºC
Shrink ratio: 2:1, 3:1, 4:1
Features:
Application: Widely used in electronics, subways, buildings, public facilities, and more.
Company: Shanghai Wellco International Limited
| Property | Requirement | Test method | Typical data |
| Longitudinal shrinkage | ≤10% | ASTM D 2671 | ≤5% |
| Tensile strength | ≥10.4 MPa | ASTM D 2671 | ≥12 MPa |
| Elongation at break | 200% min. | ASTM D 2671 | ≥400% |
| Tensile strength after ageing(175ºC,168hrs) | ≥7.3 MPa | ASTM D 2671 | ≥10.4 MPa |
| Elongation after ageing | 100% min. | ASTM D 2671 | ≥300% |
| (175ºC,168hrs) | |||
| Heat shock(250ºC,4hrs) | No crack | ASTM D 2671 | No crack |
| Low-temperature | No crack | ASTM D 2671 | No crack |
| flexibility(-55ºC,4hrs) | |||
| Dielectric voltage withstand | 2500V,60sec, no breakdown | ASTM D 2671 | No breakdown |
| Dielectric strength | 19.7 KV/mm min. | ASTM D 2671 | ≥ 25 KV/mm |
| Volume resistivity | ≥1012 Ω•cm | ASTM D 876 | ≥1014 Ω•cm |
| Corrosion | No corrosion | ASTM D 2671 | No corrosion |
| Flammability | VW-1 | UL224 | pass |
| Size | ID as supply(mm) | After recovered(mm) | ||
| Inside diameter | ID(Max) | Wall Thickness | ||
| 2:1 | ||||
| 3/64 | Ф1.2 | 1.2 | 0.6 | 0.45±0.08 |
| 1/16 | Ф1.6 | 1.6 | 0.8 | 0.45±0.08 |
| 3/32 | Ф2.4 | 2.4 | 1.2 | 0.50±0.08 |
| 1/8 | Ф3.2 | 3.2 | 1.6 | 0.50±0.08 |
| 3/16 | Ф4.8 | 4.8 | 2.4 | 0.50±0.08 |
| 1/4 | Ф6.4 | 6.4 | 3.2 | 0.65±0.08 |
| 5/16 | Ф7.9 | 8 | 4 | 0.65±0.08 |
| 3/8 | Ф9.5 | 9.5 | 4.8 | 0.65±0.08 |
| 1/2 | Ф12.7 | 12.7 | 6.4 | 0.65±0.08 |
| 5/8 | Ф15.9 | 16 | 8 | 0.75±0.08 |
| 3/4 | Ф19.1 | 19.1 | 9.5 | 0.75±0.08 |
| 1 | Ф25.4 | 25.4 | 12.7 | 0.90±0.10 |
| 1 1/4 | Ф31.8 | 31.8 | 15.9 | 0.95±0.10 |
| 1 1/2 | Ф38.1 | 38.1 | 19.1 | 1.00±0.10 |
| 2 | Ф50.8 | 50.8 | 25.4 | 1.15±0.10 |
| 3:1 | ||||
| 1/16 | Ф1.5/0.5 | 1.5 | 0.6 | 0.40±0.10 |
| 3/32 | Ф2.4/0.8 | 2.4 | 0.8 | 0.45±0.10 |
| 1/8 | Ф3.0/1.0 | 3 | 1 | 0.55±0.10 |
| 3/16 | Ф4.8/1.6 | 4.8 | 1.6 | 0.55±0.10 |
| 1/4 | Ф6.0/2.0 | 6 | 2 | 0.60±0.15 |
| 3/8 | Ф9.0/3.0 | 9 | 3 | 0.70±0.15 |
| 1/2 | Ф12/4 | 12 | 4 | 0.70±0.15 |
| 3/4 | Ф18/6 | 18 | 6 | 0.80±0.20 |
| 1 | Ф24/8 | 24 | 8 | 1.10±0.20 |
| 1 1/2 | Ф39/13 | 39 | 13 | 1.20±0.20 |
| 4:1 | ||||
| Ф4/1 | 4 | 1 | 0.90±0.10 | |
| Ф6/1.5 | 6 | 1.5 | 0.90±0.10 | |
| Ф8/2 | 8 | 2 | 0.90±0.10 | |
| Ф12/3 | 12 | 3 | 1.00±0.10 | |
| Ф16/4 | 16 | 4 | 1.00±0.10 | |
| Ф20/5 | 20 | 5 | 1.00±0.10 | |
| Ф24/6 | 24 | 6 | 1.20±0.10 | |
| Ф32/8 | 32 | 8 | 1.20±0.20 | |
| Ф40/10 | 40 | 10 | 1.20±0.20 | |
Shanghai Wellco International Limited is a professional team with 18 years of experience in R&D, production, and sales of special heat shrink tubes and other radiation crosslinking materials. We specialize in providing a wide range of products and solutions for insulation, connection, waterproofing, high temperature resistance, chemical resistance, EMI protection, and mechanical protection for wires and cables.
With a strong technical force and advanced production equipment, we offer heat shrink tubes and insulation tubes made from various materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE, and more. Our products find extensive applications in electronic communication, automobile, high-speed rail, electric motor, aviation, medical, and other industries. They provide insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection. Furthermore, our products have obtained UL certification, RoHS compliance, and REACH compliance.
We are also capable of producing customized products or developing products with special requirements based on customer needs. Our production adheres to the ISO9001 and IATF16949 quality management system standards, ensuring the stability and reliability of product quality.
1. who are we?
We are based in Shanghai, China, start from 2017,sell to North America(20.00%),South Asia(20.00%),Southeast Asia(15.00%),Western Europe(15.00%),South America(5.00%),Eastern Europe(5.00%),Mid East(5.00%),Northern Europe(5.00%),Eastern Asia(3.00%),Domestic Market(3.00%),Southern Europe(2.00%),Africa(00.00%),Central America(00.00%). There are total about 5-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Heat Shrink Tube/Heat Shrink Mould Part/Marking Sleeve/Cold Shrink Tube
4. why should you buy from us not from other suppliers?
Shanghai Wellco International Limited is a professional R & D, production, sales of special heat shrink Tube and other radiation crosslinking insulation materials manufacturers And the founder have the experience for the insulation more than 20years
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP,FCA,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,MoneyGram,PayPal,Western Union;
Language Spoken:English,Chinese, Japanese
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