Flexible Fluorine (ETFE) Resin Tubing Clear [Model Number: E-SJ]

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 inch Type of E-SJ, please click below.

E-SJ Inch Type

Sample Request Food Grade Certificate Request Leaflet Request Specification Request

Fluids

chemicals

ink

paint

flux

food

drink

alcohol

oil

water

powder

Applications

For Industrial Ink-Jet Printers (For Ink-Supplying Pipes)
For Transferring Solvent-Based Inks
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 less likely to break. (Even if it breaks, you can restore its shape to some extent.)
Non-Adhesiveness…Since fluorine resin is superior in water-proof and non-adhesiveness, 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 non-PVC materials.
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.
Original Fittings…By using our original fittings, you can avoid accidents which are caused by incorrect choices of hose and fittings. For more information on our original fittings, please scroll down to the end.

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.
UL94HB Equivalent…According to the third-party institution test, E-SJ is confirmed as equivalent to UL94HB (Flame Retardancy Test UL94HB Horizontal Combustion Test). Certificate is available on this webpage.
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.]

Packing Images

Product Standard

Standard Size

Model Number	Standard Length	I.D. $\times$ O.D.	Working Pressure	Working Pressure	Minimum Bend Radius
			20$^\circ$C	20$^\circ$C	20$^\circ$C
	m	mm	MPa	Bar	mm
E-SJ-2$\times$4	20	2$\times$4	0 - 0.6	0 - 6	15
	100
E-SJ-3$\times$5	20	3$\times$5			20
	100
E-SJ-4$\times$6	20	4$\times$6			25
	100
E-SJ-4.3$\times$6.4	20	4.3$\times$6.4			30
	100
E-SJ-6$\times$8	20	6$\times$8	0 - 0.4	0 - 4	50
	100
E-SJ-6$\times$9	20	6$\times$9	0 - 0.6	0 - 6	35
	100
E-SJ-8$\times$10	20	8$\times$10	0 - 0.4	0 - 4	90
	100
E-SJ-8$\times$12	20	8$\times$12			50
	100

Made-to-Order Size Example

Model Number	I.D. $\times$ O.D.	Working Pressure	Working Pressure	Minimum Bend Radius
	I.D. $\times$ O.D.	20$^\circ$C	20$^\circ$C	20$^\circ$C
	mm	MPa	Bar	mm
SJ-1$\times$3	1$\times$3	0 - 1.0	0 - 10	10
SJ-1.5$\times$3	1.5$\times$3	0 - 0.6	0 - 6	10
SJ-2.5$\times$4	2.5$\times$4	0 - 0.6	0 - 6	25
SJ-3$\times$4	3$\times$4	0 - 0.6	0 - 6	30
SJ-5$\times$8	5$\times$8	0 - 0.6	0 - 6	30
SJ-7$\times$10	7$\times$10	0 - 0.4	0 - 4	50
SJ-9$\times$12	9$\times$12	0 - 0.5	0 - 5	65

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 offers (such as E-SJ 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-mm, 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-mm, please click "Product Specification Download" above.

Cautions:

We do not have our original fittings for E-SJ-4.3$\times$6.4 and E-SJ-8$\times$10.
In case you have to use your fittings other than our original 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.
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, 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 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 is much softer than a teflon tube. Due to a multi-layer structure, E-SJ is much more flexible than a teflon tube. However, for I.D. 6mm and 8mm, we have a softer version than E-SJ. The product name is “Flexible Fluorine (ETFE) Resin Tubing (PVC Type)” and its model number is E-SJV. If you are interested in E-SJV, please visit its product website. Also, if you need a small size, softer tubing than E-SJ, we also have E-SJUS: Flexible Fluorine (ETFE) Resin Tubing (Ultra Soft Type).

Question: What is the difference between E-SJ and E-SJ-CBU?
Answer: The only difference is the outer color of polyurethane. E-SJ-CBU is recently developed responding to customers’ needs. By using both E-SJ and E-SJ-CBU, customers can differentiate the manufacturing lines.

Question: E-SJ is a multi-layer tubing. Is it easier to peel off the layer?
Answer: No. Even though E-SJ consists of multi-layers, the inner layer and the outer layer are strongly adhered each other. Thus, you do not have to worry about de-lamination.

Technical Information

(A) Relationship Graph between Working Temperature and Maximum Working Pressure

E-SJ_Relationship between Working Temperature and Maximum Working Pressure

(B) Flexibility Comparative Data

Test Sample	Minimum Bend Radius (mm)	Amount of Deflection (mm)	Kink Resistance (mm)
E-SJ-4$\times$6	23 (Catalog Value: 25)	31	11
PTFE Tubing (4$\times$6)	20	7	11
PFA Tubing (4$\times$6)	23	6	11

Results: “Amount of Deflection” is one indication of flexibility. Flexibility varies depending on hose (tubing). The larger the amount of deflection is, the more flexible the hose (tubing) is. Thus, E-SJ is much more flexible than PTFE and PFA tubing.

(C) Flexibility Difference Image (PTFE Tubing vs. E-SJ)

(D) Non-Adhesiveness Comparison Data

Resins	Critical Surface Tension (dyne/cm)	Contact Angle for Water ($\theta$)
ETFE Fluorine	22	96
PVDF Fluorine	25	82
High Density Polyethylene	31	73
Hard Vinyl Chloride	39	68
PET	43	-
Nylon	46	54

Results: Non-adhesiveness and smoothness, which are peculiar to fluorine resin, make it easier to wash out the fluid. You can check the data about critical surface tension and contact angle against water.

Critical Surface: The surface tension of the assumed fluid which has the contact angle of zero against solid.

(E) Washability Data

Test Conditions	Kind of Ink	Solvent-Based Inks
Washing Methods	Ink Inclusion Period	7 Days (at Room Temperature)
	Cleaning Solution	Ethyl Acetate
	Cleaning Time	20 Seconds
	Pressure	Less than 0.01MPa

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.

[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 Items	Leaching Solvent	E-SJ	Determination Limit
Evaporation Residue	Isopropyl Alcohol	10mg/L or less	10mg/L
Non-Ionic Surfactant	Pure Water	No Detection	0.005mg/L
Phenol			0.0005mg/L
Total Organic Carbon (TOC)			0.3mg/L

*Test Method: JIS S 3200-7: 2004 [Equipment for Water Supply Service]

Test Items	Measurement Methods
Evaporation Residue	Weight Method
Non-Ionic Surfactant	Solid-Phase Extraction and Absorption Spectrophotometry
Phenol	Solid-Phase Extraction, Derivatization and Gas Chromatograph Mass Spectrometry
Total Organic Carbon (TOC)	Total Organic Carbon Measurement

HAKKO Original Fittings for E-SJ-mm

Product Name	Materials, Characteristics
Fittings for Multi-Layer Tubing [Model Number: E-FTS-F]]	Material: SUS316L (Body) and SUS304 (Nut) It is designed by HAKKO tubing products, so you do not have to worry about fluid leakages and coming off. Specify temperature range and working pressure for each product. It is excellent in corrosion resistance (Body: made of 316L Steel Use). Since it is made of stainless steel (Passivation Treatment), you can transfer a wide variety of fluids.

PEEK (Carbon Reinforced) Nut Type Fittings [Model Number: AL]]	Material: PEEK Lightweight…Fitting weight is less than one-fifth, compared to same-size SUS joints, leading to overall weight reduction of equipment. Great Heat Resistance…PEEK material has excellent heat resistance among resins. Chemical Resistance…PEEK material has excellent resistance to a wide range of chemicals including acids, alkalis and organic solvents. Mechanical Strength…Carbon fiber is added to the engineering plastic of PEEK, which is strong in tensile and impact resistance.