Audited Supplier
W-SPTFE 1.7:1 4:1 PTFE Heat Shrinkable Tubing
Our W-SPTFE 1.7:1 4:1 PTFE Heat Shrinkable Tubing is the ideal solution for insulation and mechanical protection in harsh chemical and thermal environments. Made from PTFE, it offers exceptional high-temperature performance, chemical resistance, insulation, and mechanical properties.
With a shrink ratio of 1.7:1 or 4:1, this tubing is widely used in various industries including electronics, aerospace, military, and communication. It is perfect for covering hydraulic hoses and couplings, providing reliable protection against contamination and corrosion.
One of the standout features of our PTFE heat shrinkable tubing is its high mechanical strength and extremely low coefficient of friction. This makes it an excellent choice for reducing damage to bearing shafts and similar applications.
- Operating temperature: -67ºC to 260ºC
- Minimum fully recovery temperature: 350ºC
- Standard color: Clear
- Excellent flammability
- High temperature resistant up to 260ºC
- Excellent physical properties and chemical resistance
- RoHS and REACH compliant
Choose our W-SPTFE 1.7:1 4:1 PTFE Heat Shrinkable Tubing for reliable insulation and protection in the most demanding environments. Trust Shanghai Wellco International Limited for top-quality products.
Property | Requirement | Test method | Typical data |
Longitudinal shrinkage | ≤10% | ASTM D 2671 | ≤5% |
Tensile strength | ≥17.3 MPa | ASTM D 2671 | ≥ 22MPa |
Elongation at break | ≥200% | ASTM D 2671 | ≥300% |
Dielectric voltage withstand | 2500V,60sec, no breakdown | ASTM D 2671 | pass |
Volume resistivity | 1015Ω·cm min. | ASTM D 876 | 1016Ω·cm |
Corrosion | No corrosion | ASTM D 2671 | No corrosion |
Flammability | VW-1 | UL224 | pass |
Dielectric constant | 2.1 | ||
Friction coefficient | 0.1 |
Size | ID as supplied | ID After shrinked | Wall after shrinked |
1.7:1 | |||
φ0.5 | 0.7±0.2 | ≤0.30 | 0.15±0.05 |
φ1.0 | 1.0±0.2 | ≤0.60 | 0.15±0.05 |
φ1.5 | 1.5±0.2 | ≤0.90 | 0.15±0.05 |
φ2.0 | 2.0±0.2 | ≤1.30 | 0.15±0.05 |
φ2.5 | 2.5±0.2 | ≤1.50 | 0.15±0.05 |
φ3.0 | 3.0±0.2 | ≤1.80 | 0.20±0.05 |
φ3.5 | 3.5±0.2 | ≤2.0 | 0.20±0.05 |
φ3.8 | 3.8±0.2 | ≤2.2 | 0.20±0.05 |
φ4.0 | 4.0±0.3 | ≤2.5 | 0.20±0.05 |
φ4.5 | 4.5±0.3 | ≤2.7 | 0.20±0.05 |
φ5.0 | 5.0±0.3 | ≤3.0 | 0.20±0.05 |
φ6.0 | 6.0±0.3 | ≤3.6 | 0.25±0.05 |
φ6.5 | 6.5±0.3 | ≤4.0 | 0.25±0.05 |
φ7.0 | 7.0±0.3 | ≤4.2 | 0.25±0.05 |
φ8.0 | 8.0±0.3 | ≤4.8 | 0.25±0.05 |
φ9.0 | 9.0±0.3 | ≤5.3 | 0.25±0.05 |
φ10.0 | 10.0±0.2 | ≤5.8 | 0.25±0.05 |
φ11.0 | 11±0.2 | ≤6.8 | 0.25±0.05 |
φ12 | 12±0.2 | ≤7.1 | 0.35±0.05 |
φ14 | 14.0±0.3 | ≤8.2 | 0.35±0.05 |
φ15 | 15±0.3 | ≤15 | 0.35±0.05 |
φ16 | 16±0.3 | ≤9.4 | 0.35±0.05 |
φ17 | 17±0.3 | ≤10 | 0.35±0.05 |
φ18 | 18±0.3 | ≤10.5 | 0.35±0.05 |
φ19 | 19±0.3 | ≤11.2 | 0.35±0.05 |
φ20 | 20±0.3 | ≤11.8 | 0.35±0.05 |
φ21 | 21±0.3 | ≤12.3 | 0.35±0.05 |
φ22 | 22±0.3 | ≤12.6 | 0.35±0.05 |
4:1 | |||
φ2.5 | 2.5±0.2 | ≤0.7 | 0.15±0.1 |
φ3.2 | 3.0±0.2 | ≤0.8 | 0.15±0.1 |
φ4.0 | 4.0±0.2 | ≤1 | 0.15±0.1 |
φ5.0 | 5.0±0.2 | ≤1.2 | 0.15±0.1 |
φ6.0 | 6.0±0.2 | ≤1.5 | 0.15±0.1 |
φ7.0 | 7.0±0.2 | ≤1.8 | 0.2±0.1 |
φ8.0 | 8.0±0.3 | ≤2 | 0.2±0.1 |
Shanghai Wellco International Limited
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. Our focus is on providing various products and solutions for insulation, connection, waterproofing, high temperature, chemical resistance, EMI, and mechanical protection for wires and cables.
With a strong technical force and advanced production equipment, we specialize in supplying heat shrink tubes and insulation tubes made from materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE, and more. Our products find wide applications in electronic communication, automobile, high-speed rail, electric motor, aviation, medical, and other industries. They offer 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 as per customer needs. Our production processes adhere to the ISO9001 and IATF16949 quality management system standards to ensure the stability and reliability of product quality.
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
