Company and Contact Information

Hakko Corporation, headquartered in Tokyo, Japan, with sales offices in Osaka and factories in Saitama and Akita, specializes in manufacturing reinforced yarn hoses. Contact details include email [email protected] and website https://hakko-eightron.com/.

Product Overview: Paint Flex-Nylon Hose (Model E-PFN)

The E-PFN series is a reinforced yarn, multi-layered flexible hose designed primarily for solvent transfer and paint applications, especially in automotive painting and manufacturing equipment pipes. The inner layer is made of nylon resin, providing excellent solvent resistance.

Applications and Fluids

• Automobile paints
• Organic solvents
• Manual painting for automobiles, motorcycles, and auto parts
• Manufacturing equipment pipes for solvents and paints

Materials and Structure

The hose features a multi-layer construction with a nylon resin inner layer and reinforced yarn for durability and flexibility.

Technical Specifications

Note: Inch sizes are approximate and not exact metric conversions.

Performance Characteristics

• Solvent Resistance: Nylon inner layer offers high resistance to paints, organic solvents, and thinners.
• Flexibility: Laminated multi-layer structure provides superior flexibility and kink resistance compared to single-layer nylon tubing.
• Transparency: Enables easy visual inspection of fluid flow.
• RoHS2 Compliance: Environmentally friendly and free from restricted substances.
• Cutting Convenience: Hose is marked every meter for easy length cutting.

Usage and Safety Recommendations

• Use joints to seal the inner surface of the hose only; sealing the outer surface may cause bursting or detachment.
• Refer to "Precautions for Use" and "Chemical Resistance Data" available on the company website and product catalog before use.
• Due to the multi-layer structure, chemical fluids may penetrate middle or outer layers under certain conditions, potentially causing swelling, leakage, discoloration, or bursting.

Chemical Resistance and Tensile Strength Data

Tests were conducted by soaking inner layer materials (nylon resin and fluorine resin) in various paint types and solvents for 50 days (1200 hours) to measure tensile strength retention. Results indicate:

• Nylon resin inner layers show good solvent resistance but may swell or deteriorate depending on chemical type and concentration.
• Fluorine resin inner layers generally exhibit higher chemical resistance.
• Data is indicative and should be verified under actual working conditions.

Fittings and Accessories

Hakko offers original fittings designed to match the E-PFN hoses, ensuring safety and preventing accidents caused by incompatible hose and fitting combinations. Key points include:

• Fittings are available in brass with nickel plating and stainless steel wetted parts.
• Thread types include G1/4 and G3/8 for different hose sizes.
• Special attention to the shape of the sheet surface on threaded portions to ensure proper sealing.

Customization and Ordering

Hakko can manufacture hoses with custom sizes, lengths, and colors beyond catalog listings as made-to-order products. Customers are encouraged to contact the company for tailored solutions.

Additional Notes

• The brochure is subject to change without prior notice.
• For detailed chemical resistance and usage precautions, consult the official website and product catalogs.