| Certification: | RoHS, ISO, Reach |
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| Color: | Black, Blue, Yellow, Red |
| IP Rating: | IP68 |
| Samples: |
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier 
Introducing the SFKM Fluoroelastomer Heat Shrinkable Tube, a high-quality solution for protecting electronic devices in high-temperature and oil environments. Manufactured by Shanghai Wellco International Limited, this heat shrinkable tube offers exceptional performance and reliability.
-55ºC to 200ºC
Above 175ºC
2:1
Perfect for protecting electronic devices in high-temperature and oil environments. Additionally, it provides insulation protection for resistors, capacitors, and thermocouples.
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Property
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Requirement
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Test method
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Typical data
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Longitudinal shrinkage
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≤10%
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ASTM D 2671
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≤5%
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Tensile strength
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≥8.2MPa
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ASTM D 2671
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≥12 MPa
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Elongation at break
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≥250%
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ASTM D 2671
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≥400%
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Elongation after ageing
(250ºC,168hrs)
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≥200%
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ASTM D 2671
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≥300%
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Heat shock(300ºC,4hrs)
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No crack
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ASTM D 2671
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No crack
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Low-temperature
flexibility(-55ºC,4hrs)
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No crack
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ASTM D 2671
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No crack
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Dielectric voltage
withstand
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2500V,60sec, no
breakdown
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ASTM D 2671
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pass
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Dielectric strength
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7.9 KV/mm min.
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ASTM D 2671
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≥12 KV/mm
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Volume resistivity
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109Ω·cm min.
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ASTM D 876
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≥109Ω·cm
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Corrosion
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No corrosion
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ASTM D 2671
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pass
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Flammability
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Self-extinguishing
within 15s
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ASTM D 2671
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pass
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Fluids resistance (23ºC ,24hrs)
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|||
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Tensile strength
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8.2MPa min.
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ASTM D 2671
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≥12 MPa
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Elongation at break
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250% min.
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ASTM D 2671
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≥400%
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|
Normal wall Type
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||||
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Size
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(mm) As Supplied min.)
Inside diameter
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(mm) After recovered
|
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inch
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mm
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(max.)Inside diameter
|
Wall thickness
|
|
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3/32
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Ф2.4
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2.4
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1.2
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0.51±0.08
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1/8
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Ф3.2
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3.2
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1.6
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0.76±0.13
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3/16
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Ф4.8
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4.8
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2.4
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0.89±0.18
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1/4
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Ф6.4
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6.4
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3.2
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0.89±0.18
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3/8
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Ф9.5
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9.5
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4.8
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0.89±0.18
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1/2
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Ф12.7
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12.7
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6.4
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0.89±0.18
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3/4
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Ф19.1
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19.1
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9.5
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1.07±0.21
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1
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Ф25.4
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25.4
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12.7
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1.25±0.30
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1 1/2
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Ф38.1
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38.1
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19.1
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1.40±0.38
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2
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Ф50.8
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50.8
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25.4
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1.65±0.43
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|
thin wall Type
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||||
|
size
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(mm)As supplied
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(mm) After recovered
|
||
|
inch
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mm
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(min.) Inside diameter
|
(max.)Inside diameter
|
Wall thickness
|
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3/32
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Ф2.4
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2.4
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1.2
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0.30±0.08
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1/8
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Ф3.2
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3.2
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1.6
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0.33±0.08
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3/16
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Ф4.8
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4.8
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2.4
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0.36±0.10
|
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1/4
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Ф6.4
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6.4
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3.2
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0.41±0.10
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3/8
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Ф9.5
|
9.5
|
4.8
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0.48±0.10
|
|
1/2
|
Ф12.7
|
12.7
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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
|
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 are dedicated to 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 our strong technical force and advanced production equipment, we offer a variety of 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 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. Our products have passed UL certification, RoHS, and REACH.
In addition, we specialize in producing customized products and developing solutions to meet specific customer requirements. Our production processes adhere to the ISO9001 and IATF16949 quality management system standards to ensure the stability and reliability of our product quality.
Shanghai Wellco International Limited is a professional R&D, production, and sales company based in Shanghai, China. We have been in operation since 2017 and have a team of 5-10 people in our office. Our products are sold globally, with a significant focus on North America (20.00%), South Asia (20.00%), Southeast Asia (15.00%), Western Europe (15.00%), and other regions.
We prioritize quality and ensure it through various measures. We always provide a pre-production sample before mass production, and every product undergoes a final inspection before shipment.
At Shanghai Wellco International Limited, we offer a range of high-quality products, including Heat Shrink Tube, Heat Shrink Mould Part, Marking Sleeve, and Cold Shrink Tube. Our products are designed to meet your specific needs and requirements.
When you choose Shanghai Wellco International Limited as your supplier, you benefit from our 20+ years of experience in the insulation industry. We are dedicated to research, development, and production of special heat shrink tubes and other radiation crosslinking insulation materials.
We provide a wide range of services to ensure a seamless buying experience. We accept various delivery terms, including FOB, CFR, CIF, EXW, CIP, FCA, DDP, DDU, and Express Delivery. Accepted payment currencies include USD, EUR, and CNY, and we accept payment types such as T/T, L/C, MoneyGram, PayPal, and Western Union. Our team is fluent in English, Chinese, and Japanese to assist you effectively.
Suppliers with verified business licenses
Audited Supplier 
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