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Ensinger PEI
Syensqo (Solvay Specialty Polymers) Omnix® DW-4050 High Performance (HPPA), 50% glass fiber
Categories: Polymer; Thermoplastic; Polyphthalamide (PPA)

Material Notes: 50% glass fiber, potable water approval, hot water moldable

Omnix® DW-4050 is a 50% glass-fiber reinforced high-performance polyamide. It is hot-water moldable and intended for use in components requiring superior mechanical properties even after moisture absorption.

Omnix® DW-4050 is characterized by high stiffness and strength, very good impact properties, good dimensional stability and high flow properties. This material is an economical alternative for drinking and potable water.

Omnix® DW-4050 is approved for use in potable water in France, Germany, United States and United Kingdom.

It processes readily using conventional injection molding machines and methods. Water-cooled molds are suitable for use with this grade.

- Black: Omnix® DW-4050 BK 001
- Natural: Omnix® DW-4050 NT 000

Applications: Appliances; Food Service Applications

Features: Fast Molding Cycle; Good Dimensional Stability; Good Impact Resistance; Good Surface Finish; High Flow; High Stiffness; High Strength; Hot Water Moldability; Paintable

- Typical values shown tested on Dry as Molded samples.
- Standard Packaging and Labeling: Omnix® DW-4050 resin is packaged in foil lined, multiwall paper bags containing 25 kg (55 pounds) of material. Individual packages will be plainly marked with the p

Injection notes: Drying:
- Omnix® DW-4050 resin is shipped in moisture-resistant packages at moisture levels according to specifications. Sealed, undamaged bags should be preferably stored in a dry room at a maximum temperature of 50°C (122°F) and should be protected from possible damage. If only a portion of a package is used, the remaining material should be transferred into a sealable container. It should be dried before molding because excessive moisture content will result in reduced mechanical properties and processing issues, such as excessive nozzle drooling, foaming and splay visible on the molded parts.
- Recommended drying conditions are as follows:
-- Type of drier: Desiccant
-- Temperature: 80°C (175°F)
-- Time: 4-12 hours
-- Dew point: -30°C (-22°F) or lower
-- Polyamides oxidize in the presence of oxygen at high temperatures. Therefore drying temperatures above 80°C should be avoided, particularly for light colors or color-controlled parts.
Injection Molding:
- Omnix® DW-4050 resin can be readily injection molded in most screw injection molding machines. A general purpose screw is recommended, with minimum back pressure. The melt temperature should be between 275°C and 290°C (527°F and 554°F). Generally this can be achieved with barrel temperatures from 250°C (482°F) in the rear zone gradually increasing to 285°C (545°F) in the front zone. Mold temperature should be between 80° and 140°C (176° and 284°F).
- Set injection pressure to give rapid injection. Adjust holding pressure to one-half injection pressure. Set hold time to maximize part weight. Transfer from injection to hold pressure at the screw position just before the part is completely filled.
Storage:
- Omnix® compounds are shipped in moisture-resistant packages at moisture levels according to specifications. Sealed, undamaged bags should be preferably stored in a dry room at a maximum temperature of 50°C (122°F) and should be protected from possible damage. If only a portion of a package is used, the remaining material should be transferred into a sealable container.

Information provided by Solvay Specialty Polymers.

Vendors:
Available Properties
  • Density, ASTM D792
  • Linear Mold Shrinkage, Flow, ISO 294-4
  • Linear Mold Shrinkage, Transverse, ISO 294-4
  • Tensile Strength, Yield, ISO 527-2
  • Elongation at Break, ISO 527-2
  • Tensile Modulus, ISO 527-2
  • Flexural Strength, ISO 178
  • Flexural Modulus, ISO 178
  • Izod Impact, Notched (ISO), ISO 180
  • Izod Impact, Unnotched (ISO), ISO 180
  • Charpy Impact Unnotched, ISO 179
  • Charpy Impact, Notched, ISO 179
  • Melting Point, ISO 11357-3
  • Rear Barrel Temperature
  • Front Barrel Temperature
  • Melt Temperature, Injection
  • Mold Temperature
  • Drying Temperature
  
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Manufacturer Notes:
Solvay Specialty Polymers (includes former Solexis)

Category Notes
Plastic

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