| Application: | Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate |
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| Type: | Insulation Sleeve |
| Chemistry: | Organic Insulation |
| 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 
Shanghai Wellco International Limited presents the SFKM Fluoroelastomer Heat Shrinkable Tube, designed to meet the high demands of electronic device protection in environments with extreme temperatures and oil exposure.
Our SFKM Fluoroelastomer Heat Shrinkable Tube is ideal for:
Choose from a range of colors to suit your needs: Black, Red, Yellow, and Blue.
This product is UL Approved, ensuring the highest quality standards.
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Property
|
Requirement
|
Test method
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Typical data
|
|
Longitudinal shrinkage
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≤10%
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ASTM D 2671
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≤5%
|
|
Tensile strength
|
≥8.2MPa
|
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
|
ASTM D 2671
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No crack
|
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Dielectric voltage
withstand
|
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
|
250% min.
|
ASTM D 2671
|
≥400%
|
|
Normal wall Type
|
||||
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Size
|
(mm) As Supplied min.)
Inside diameter
|
(mm) After recovered
|
||
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inch
|
mm
|
(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
|
3.2
|
1.6
|
0.76±0.13
|
|
3/16
|
Ф4.8
|
4.8
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2.4
|
0.89±0.18
|
|
1/4
|
Ф6.4
|
6.4
|
3.2
|
0.89±0.18
|
|
3/8
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Ф9.5
|
9.5
|
4.8
|
0.89±0.18
|
|
1/2
|
Ф12.7
|
12.7
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6.4
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0.89±0.18
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3/4
|
Ф19.1
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19.1
|
9.5
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1.07±0.21
|
|
1
|
Ф25.4
|
25.4
|
12.7
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1.25±0.30
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|
1 1/2
|
Ф38.1
|
38.1
|
19.1
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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
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mm
|
(min.) Inside diameter
|
(max.)Inside diameter
|
Wall thickness
|
|
3/32
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Ф2.4
|
2.4
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1.2
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0.30±0.08
|
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1/8
|
Ф3.2
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3.2
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1.6
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0.33±0.08
|
|
3/16
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Ф4.8
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4.8
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2.4
|
0.36±0.10
|
|
1/4
|
Ф6.4
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6.4
|
3.2
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0.41±0.10
|
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3/8
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Ф9.5
|
9.5
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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
|
Shanghai Wellco International Limited is a professional team with 18 years of experience in R&D, production, and sales of special heat shrink tube and other radiation crosslinking materials. We specialize in providing a wide range of products and solutions for insulation, connection, waterproofing, high temperature applications, chemical resistance, EMI protection, and mechanical protection for wire and cable.
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 use in electronic communication, automotive, high-speed rail, electric motor, aviation, medical, and other industries. They provide excellent insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection. All our products have passed UL certification, RoHS, and REACH compliance.
In addition to our standard product range, we also offer customization options to meet specific customer requirements. We adhere to ISO9001 and IATF16949 quality management system standards to ensure the stability and reliability of our product quality.
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Suppliers with verified business licenses
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