Product Overview

The document details the specifications and features of the E-PFF Paint Flex-Fluorine Hose manufactured by Hakko Corporation. This hose is designed primarily for solvent transfer and flexible paint applications, including water-based paints and organic solvents, with a focus on long-duration use.

Specifications

• Model Number: E-PFF-6.5
• Inside Diameter (I.D.): 6.5 mm (approx. 1/4 inch)
• Outside Diameter (O.D.): 9.5 mm
• Working Pressure: 0 to 1.5 MPa at 20℃, 0 to 0.7 MPa at 60℃
• Minimum Bend Radius: 50 mm at 20℃
• Temperature Range: -20℃ to 60℃
• Standard Length: 20 meters per roll
• Product Weight: Approximately 0.96 kg per 20 m roll
• Color: Clear with red line
• Packing: Film wrapping or paper bobbin with specified packing dimensions

Material and Structure

The hose features a multi-layer construction:

• Inner Layer: Ethylene-Tetrafluoroethylene (ETFE) fluorine resin providing chemical resistance and transparency.
• Reinforcement: Yarn-reinforced polyamide elastomer for flexibility and durability.

This structure offers superior flexibility compared to single-layer fluorine tubing, enhancing kink resistance and ease of handling.

Applications

• Manual painting for automobiles, motorcycles, and auto parts.
• Solvent and paint transfer in manufacturing plants.
• Chemical transfer requiring solvent resistance.

Performance and Chemical Resistance

The hose is resistant to a wide range of paints, including water-based paints (amine and alcohol types), organic solvents, thinners, and other chemicals due to the ETFE inner layer.

Test data on tensile strength retention after soaking in various paint types indicate that the fluorine resin inner layer maintains better chemical resistance and durability compared to nylon resin. However, swelling, leakage, color changes, and bursting may occur depending on usage conditions.

Usage Recommendations and Precautions

• Use joints to seal the inner surface of the hose only; sealing the outer surface may cause bursting or detachment.
• Refer to the "Precautions for Use" and "Chemical Resistance Data" available on the company's website and product catalog before use.
• Original Hakko fittings are recommended to prevent accidents caused by incorrect hose and fitting combinations.

Additional Features

• Cut marks printed every meter for easy length customization.
• Compliance with RoHS2 environmental standards.
• Custom manufacturing options available for sizes, lengths, and colors not listed in the catalog.

Technical Data and Graphs

A graph illustrates the relationship between working temperature and maximum working pressure, showing reduced pressure capacity at higher temperatures.

Test procedures for tensile strength after soaking in various paints are described, with soaking time of 50 days (1,200 hours) to evaluate material durability.

Fittings and Accessories

• Original fittings include brass with nickel plating and stainless steel wetted parts.
• Available thread sizes: G1/4 and G3/8.
• Fittings with hose guides are also offered.

Contact and Company Information

Hakko Corporation's head office is located in Tokyo, Japan, with sales offices in Osaka and factories in Saitama and Akita. Contact details and website URL are provided for inquiries and further information.

Website: https://hakko-eightron.com/