Kalix® 5950 HFFR is a halogen-free, flame retardant (UL-94 V0 at 0.4 mm), highly reinforced polyamide material specifically formulated for high strength and stiffness applications where good impact resistance and excellent dimensional stability after molding are required. The formulation also addresses warpage issues associated with the anisotropic shrinkage of glass fiber reinforced materials so that close tolerance molding is more easily achieved. Its low viscosity and excellent flow properties make the material ideal for filling parts with thin-walled sections such as those encountered in the mobile electronics industry.

- Black: Kalix® 5950 BK 000 HFFR
- White: Kalix® 5950 WH 000 HFFR
- White: Kalix® 5950 WH 001 HFFR
- White: Kalix® 5950 WH 008 HFFR

Applications: Cell Phones; Electrical Parts; Electrical/Electronic Applications; Thin-walled Parts

Features: Flame Retardant; Good Dimensional Stability; Good Impact Resistance; Good Surface Finish; Halogen Free; High Flow; High Stiffness; High Strength; Low Moisture Absorption; Low Warpage; Paintable; Platable

Typical values shown tested on Dry as Molded samples.

Standard Packaging and Labeling:
- Kalix® HFFR resin is packaged in foil lined, multiwall paper bags containing 25 kg (55 pounds) of material. Individual packages will be plainly marked with the product number, the color, the lot number, and the net weight.

Injection notes: Storage:
- Kalix® 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. It is recommended that Kalix® resins be dried prior to molding following the recommendations found in this datasheet and/or in the Kalix® processing guide.
Drying:
- Kalix® HFFR is supplied in sealed bags. 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.
- Drying temperatures of up to 100°C may be used for dark colored resin (such as black) to achieve shorter drying times, if necessary. For lighter colored resin, 80°C drying temperature is recommended to minimize the risk of oxidative discoloring.
- Use of a desiccant dryer with -40°C dewpoint is strongly suggested to ensure Kalix® material has reached optimum moisture content before processing.
Injection Molding:
- Kalix® HFFR 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 in the range 280°-285°C (535°F-545°F). Generally this can be achieved with barrel temperatures from 250°C (482°F) in the rear zone, gradually increasing to 280°C-290°C (535°F-554°F) in the front zone. Mold temperature heater set points should be in the range of 115°C-130°C (239°F-266°F) with surface finish improving as the temperature is increased.
- 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.

Information provided by Solvay Specialty Polymers.