Audited Supplier
˙Operating temperature range:-55ºC~200ºC
˙Contraction temperature: above 175ºC
˙Contraction ratio: 2:1
˙Features: High-temperature resistance, flame retarding, flexibility, oil resistance, acid and alkali resistance
˙Applications:Suitable for protection of electronic devices in an environment with high temperature and oil and insulation
protection of resistors, capacitors, and thermocouples
Color: Black,Red,Yellow,Blue
Property | Requirement | Test method | Typical data |
Longitudinal shrinkage | ≤10% | ASTM D 2671 | ≤5% |
Tensile strength | ≥8.2MPa | ASTM D 2671 | ≥12 MPa |
Elongation at break | ≥250% | ASTM D 2671 | ≥400% |
Elongation after ageing (250ºC,168hrs) | ≥200% | ASTM D 2671 | ≥300% |
Heat shock(300ºC,4hrs) | No crack | ASTM D 2671 | No crack |
Low-temperature flexibility(-55ºC,4hrs) | No crack | ASTM D 2671 | No crack |
Dielectric voltage withstand | 2500V,60sec, no breakdown | ASTM D 2671 | pass |
Dielectric strength | 7.9 KV/mm min. | ASTM D 2671 | ≥12 KV/mm |
Volume resistivity | 109Ω·cm min. | ASTM D 876 | ≥109Ω·cm |
Corrosion | No corrosion | ASTM D 2671 | pass |
Flammability | Self-extinguishing within 15s | ASTM D 2671 | pass |
Fluids resistance (23ºC ,24hrs) | |||
Tensile strength | 8.2MPa min. | ASTM D 2671 | ≥12 MPa |
Elongation at break | 250% min. | ASTM D 2671 | ≥400% |
Normal wall Type | ||||
Size | (mm) As Supplied min.) Inside diameter | (mm) After recovered | ||
inch | mm | (max.)Inside diameter | Wall thickness | |
3/32 | Ф2.4 | 2.4 | 1.2 | 0.51±0.08 |
1/8 | Ф3.2 | 3.2 | 1.6 | 0.76±0.13 |
3/16 | Ф4.8 | 4.8 | 2.4 | 0.89±0.18 |
1/4 | Ф6.4 | 6.4 | 3.2 | 0.89±0.18 |
3/8 | Ф9.5 | 9.5 | 4.8 | 0.89±0.18 |
1/2 | Ф12.7 | 12.7 | 6.4 | 0.89±0.18 |
3/4 | Ф19.1 | 19.1 | 9.5 | 1.07±0.21 |
1 | Ф25.4 | 25.4 | 12.7 | 1.25±0.30 |
1 1/2 | Ф38.1 | 38.1 | 19.1 | 1.40±0.38 |
2 | Ф50.8 | 50.8 | 25.4 | 1.65±0.43 |
thin wall Type | ||||
size | (mm)As supplied | (mm) After recovered | ||
inch | mm | (min.) Inside diameter | (max.)Inside diameter | Wall thickness |
3/32 | Ф2.4 | 2.4 | 1.2 | 0.30±0.08 |
1/8 | Ф3.2 | 3.2 | 1.6 | 0.33±0.08 |
3/16 | Ф4.8 | 4.8 | 2.4 | 0.36±0.10 |
1/4 | Ф6.4 | 6.4 | 3.2 | 0.41±0.10 |
3/8 | Ф9.5 | 9.5 | 4.8 | 0.48±0.10 |
1/2 | Ф12.7 | 12.7 | 6.4 | 0.48±0.10 |
3/4 | Ф19.1 | 19.1 | 9.5 | 0.69±0.10 |
1 | Ф25.4 | 25.4 | 12.7 | 0.79±0.10 |
1 1/2 | Ф38.1 | 38.1 | 19.1 | 0.94±0.10 |
2 | Ф50.8 | 50.8 | 25.4 | 1.02±0.10 |
The company has strong technical force with 20 years experience and advanced production equipment. We can supply (such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE Etc materials)heat shrink tube and insulation tube. The products are widely used in the fields of electronic communication, automobile, high-speed rail, electric motor, aviation, medical and other fields, such as insulation, water-proof, electrostatic shielding, oil-resistant, chemical and high-temperature resistant Protection, etc. Our products have passed UL certification ,RoHS ,REACH.
We also can produce customized products or develop products with special requirements according to customer requirements, and we carry out our production according to ISO9001 and IATF16949 quality management system standards to ensure 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
