Complaint
| Property | Unit | Performance requirements | Testing method | |
| Operating Temperature Range | ºC | -40~125 | UL224 | |
| Longitudinal change | % | 0~10 | ASTM D2671 /U224 | |
| Tensile strength | Mpa | ≥10.4 | ASTM D2671 | |
| Breakage elongation | % | ≥200 | ASTM D2671 | |
| Cold impact : 4H, -40±2°C | \ | No crack | UL224 | |
| Heat Shock : 4 H, 250±3°C (only jacket) | \ | No drip, no flow, no crack | UL224 | |
| Heat aging (only jacket) 168H, 175±2°C | Tensile strength | Mpa | ≥7.3 | UL224 |
| Breakage elongation | % | ≥100 | UL224 | |
| Volume resistivity | Ohm-cm | ≥1 x 1012 | ASTM D2671 | |
| Copper corrosion | / | 158ºC,168h,Pass | UL224 | |
| water absorption | % | ≤1.0% | ASDM D570 | |
Size | Length(mm) | As supplied (mm) | After unrestricted shrinkage (mm) | ||
| ID MIN (C) | Preshrink seal length MIN(F) | ID MAX (D) | total thickness (W) | ||
| 3.2 | 25 | 3.2 | 4.0 | ≤1.00 | 1.00±0.10 |
| 5.75 | 40 | 5.75 | 4.0 | ≤1.27 | 1.50±0.15 |
| 7.4 | 35 | 7.4 | 5.0 | ≤1.65 | 1.80±0.20 |
| 10.8 | 45 | 10.8 | 5.0 | ≤2.40 | 2.10±0.30 |
Shanghai Wellco International Limited is a professional Team with 18years experience for R & D, production, sales of special heat shrink Tube and other radiation crosslinking materials manufacturers. We concentrate on to providing all kinds of products and solution for Insulation,Connection,Waterproof, high temperature ,Chemical resistant ,EMI and mechanical protection for the wire and cable .
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
