Flexible Fluorine (ETFE) Resin Tubing Clear Inch Type [Model Number: E-SJ-inch]
Multi-Purpose / Chemical Resistance Tube | Single-layer teflon tubing is hard (stiff) and easy to break. Our Flexible Fluorine (ETFE) Resin Tubing is an alternative tubing for a teflon tubing.
*If you are interested in mm Type of E-SJ, please click below.
E-SJ-mm Type
Fluids
chemicals
ink
paint
flux
food
drink
alcohol
oil
water
powder
Applications
- For Industrial Ink-Jet Printers (For Ink-Supplying Pipes)
- For Transferring Paints, Solvents and Adhesives
- For Transferring Chemicals used in Laboratory Equipment
- For Transferring Chemicals used in Semiconductor-Related Devices and Flat Panel Display (FPD) Manufacturing Devices
- For Transferring Beverage and Food
- For Transferring Fatty Acid Ester such as Biofuel (BDF)
- For Transferring Chemical and Industrial Wastes
- For Transferring Alcohol, Cosmetics and Chemicals
- For Transferring Chemicals used in Medical Equipment, Endoscope and so on
- For Transferring Chemicals used in Manufacturing Fuel Cell and Pure Water
- For Printing Head, Wide-Format Ink-Jet Printers, Textile Printers, Ceramic Tile Printers, 3D Printers
- For Filling Line of Paints and Adhesives
- For Filling Line of Fragrance, Colorant and Additive
- For Air Supplying Pipes at Clean Room
Functions
Solvent Resistance
Non-PVC
Non-Adhesiveness
Chemical Resistance
Low Elution
Low Odor
Food-Sanitation
Flexibility
Transparency
Oil-Proof
Cold Resistance
Alcohol Resistance
Characteristics
- Chemical Resistance…Since the inner layer is made of ETFE fluorine resin, E-SJ is resistant to most of the chemical substances. For more information, please refer to chemical resistance data.
- Flexibility…Due to the laminated structure, compared with a single-layer fluorine tubing, E-SJ is superior in flexibility. This improves your work efficiency. Please check the video clip to see the difference in flexibility between E-SJ and a teflon tubing.
- Hard to Break…Unlike a single-layer fluorine tubing, E-SJ is hard to break. (Even if it breaks, you can restore its shape to some extent.)
- Higher Non-Adhesiveness…Since ETFE fluorine resin is superior in terms of water-proof, you can wash out the fluids very easily.
- Abrasion Resistance…Fluorine resin (inner layer) shows high levels of abrasion resistance. Thus, you can even transfer chemical slurry.
- Plasticizer-Free…E-SJ does not contain plasticizer (an elution material) at all. E-SJ is an oil-free tubing.
- Non-PVC…E-SJ is made of a non-PVC material.
- Low Elution and Low Odor…Since E-SJ contains very low levels of elution and odor, it is highly recommended for use in transfers of food, beverage, and cosmetics.
- High Purity…Fluorine resin does not contain any additives such as plasticizer, so E-SJ is suitable for transferring high purity chemical fluids.
- Easy to Cut…Since we print the cut mark on the hose every meter, it is easy to cut the length you would like to.
- Transparency…E-SJ enables you to check the fluid very easily.
Certificates and Regulations
- RoHS2…E-SJ is compliant with RoHS2 requirements (Directive: (EU) 2015/863). (RoHS 2 Compliant means that E-SJ does not contain RoHS 2 10 restricted substances or it does not exceed the upper threshold of RoHS 2 10 restricted substances.) Certificate is available on request.
- EU REACH and UK REACH…E-SJ is compliant with REACH SVHC 25th list (219 substances). Certificate is available on request.
- Non-Use of UV-328…E-SJ does not contain UV-328. Certificate is available on request.
- TSCA (Toxic Substance Control Act) Compliance…E-SJ does not use decaBDE, PIP(3:1), 2,4,6-TTBT, PCTP and HCBD. Certificate is available on request.
- PFOA and PFOS…E-SJ does not contain perfluorocarboxylic acids (PFCAs C 9 – C 14), their salts or PFCA-related substances. Certificate is available on request.
- Food Sanitation…E-SJ conforms to the Food Sanitation Law No.370 (No.370 of the Ministry of Health and Welfare for Food Sanitation). (Conformity to N-Heptane). [Regarding the conformity of “Partial Revision of the Food Sanitation Law” (Effective on June 1, 2020) and Positive List System (PL), please download here.]
- Regulation (EC) No 1935/2004 and (EU) No 10/2011…An inner layer of E-SJ is compliant with (EC) No 1935/2004 and (EU) No 10/2011.
Packing Images
Product Standard
Standard Size
Made-to-Order Size Example
- Temperature Range : -20 – 80 $^\circ$C (-4$^\circ$F – 176$^\circ$F)
- Color : Clear
*If you are interested in Made-to-Order size and other E-SJ-Inch offers (such as cleanroom packing type), please fill out the following form. (We can also produce a special size that is not listed on the table above. Please note that MOQ applies for made-to-order size.)
Made-to-Order Inquiry Form
Leaflet Request
For more information on our Product Standard of E-SJ-inch, please click "Product Leaflet Download" above.
Specification Request
For more technical information (such as Thickness of Each Layer and Precautions in Use) on E-SJ-inch, please click "Product Specification Download" above.
Cautions:
- We do not have our original fittings for E-SJ-Inch (except E-SJ-1/4″$\times$3/8″). When you select the fittings, please do not use the joints to seal an outer surface of the tubing. This may result in the bursting or coming off from the tubing. If you need our technical support in selecting the suitable fittings, please fill out this form.
- When you use our products, please refer to “Precautions for Use.” (“The Precautions for Use” is also available at the product specifications of E-SJ-Inch, which can be downloadable from here.)
- In terms of chemical resistance, please refer to “Chemical Resistance Data.”
- Although the inner layer is made of ETFE fluorine, please make sure whether or not E-SJ is usable for high purity fluids before you use.
- Although the inner layer is resistant to fluids, depending on working environments, the fluids would be permeated through the inner layer, resulting in the danger of swelling and degradation of the middle or outer layer.
Case Study
Problem: A Single-Layer Teflon Tube is hard and easy to break.
A gas analysis equipment manufacturer (called “Company A” hereinafter) was looking for a flexible tubing for better handling and easy installation. An inner layer should be made of fluorine, and its bending radius is smaller and hard to break.
HAKKO Solution:
HAKKO proposed E-SJ: Flexible Fluorine (ETFE) Resin Tubing and provided a sample. E-SJ is made of three layers: the inner layer is made of ETFE fluorine, the middle layer is made of polyamide and the outer layer is made of polyurethane. The inner layer shows a feature of smoothness and higher levels of chemical resistance. Also, the outer layer is made of polyurethane, which makes the tubing softer and more flexible. As a result, compared with a teflon tubing, E-SJ is flexible, hard to break and restore its shape even if it kinks. After Company A evaluates our E-SJ, E-SJ passed the criteria of smoothness, chemical resistance and flexibility.
Frequently Asked Questions
Question: E-SJ-Inch is a multi-layer tubing. Is it easier to peel off the layer?
Answer: No. Even though E-SJ-Inch consists of multi-layers, the inner layer and the outer layer are greatly adhered each other. Thus, you do not have to worry about de-lamination.
Question: Can you manufacture a non-standard size?
Answer: Yes, we can manufacture a non-standard size (such as I.D. 1/16″ $\times$ O.D. 1/8″), depending on your requirements. Please fill out “Made-to-Order Inquiry Form.”
Question: E-SJ-Inch is harder than I expected. I need a softer product.
Answer: If you have already known a teflon tube, you must have realized that E-SJ-Inch is much softer than a teflon tube. However, if you still need a softer tubing than E-SJ-Inch, we also have E-SJUS: Flexible Fluorine (ETFE) Resin Tubing (Ultra Soft Type).
Technical Information
(A) Relationship Graph between Working Temperature and Maximum Working Pressure
(B) Flexibility Comparative Data
Results: “Amount of Deflection” is one indication of flexibility. The larger the amount of deflection is, the more flexible the hose (tubing) is. Thus, E-SJ and E-PD are much flexible than PTFE and PFA tubing.
(C) Flexibility Difference Image (PTFE Tubing vs. E-SJ)

(D) Non-Adhesiveness Comparison Data
Critical Surface Tension: The surface tension of the assumed fluid which has the contact angle of zero against solid.
Results: Since the lower value of “Critical Surface Tension” and higher value of “Contact Angle for Water” show higher non-adhesivenss, ETFE fluorine material shows the highest non-adhesiveness.
(E) Washability Data
Results: In comparison with a Nylon hose, Flexible Fluorine (ETFE) Resin Hose is excellent in non-adhesiveness of the inner layer, so you can reduce washing time and save cleaning solutions and labor costs.
(F) Transparency Comparison Image: E-SJ vs. PTFE Tubing
![[Sample] We pour the same yellow paint through both tubings and seal both ends. [Result] As you can see, compared with a PTFE tubing, HAKKO E-SJ is easier to see through.](https://hakko-eightron.com/wp-content/uploads/2017/11/Easier-to-see-through.png)
[Sample]
We pour the same yellow paint through both tubings and then seal both ends.
[Result]
As you can see, compared with a PTFE tubing, HAKKO E-SJ is easier to see through.
(G) Leach Test Data
*Test Method: JIS S 3200-7: 2004 [Equipment for Water Supply Service]
HAKKO Original Fittings for E-SJ-inch
Product Name | Materials, Characteristics |
Fittings for Paint-Flex Hose Series [Model Number: E-FS/E-FB]] | E-FS:
- Material: SUS304 (Wetted Part), Brass Nickel Plating (Nut)
- RoHS 2 Compliant
- Thread: G1/4 or G3/8
- SUS Mark around ring means E-FS.
E-FB:
- Material: Brass Nickel Plate
- RoHS 2 Compliant
- Thread: G1/4 or G3/8
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Fittings for Paint-Flex Hose Series [Model Number: E-FSG/E-FBG]] | E-FSG:
- Material: SUS304 (Wetted Part and Hose Guide), Brass Nickel Plating (Nut)
- RoHS 2 Compliant
- Thread: G1/4 or G3/8
- With Hose Guide: prevent kinking
- SUS Mark around ring means E-FSG.
E-FBG:
- Material: Brass Nickel Plate, SUS304 (Hose Guide)
- RoHS 2 Compliant
- Thread: G1/4 or G3/8
- With Hose Guide: prevent kinking
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*Please note that the fittings above are used for E-SJ-1/4″ $\times$ 3/8″.