This is the free Material Data Center Datasheet of Ultramid® B3ZG7 OSI BK23273 - PA6-GF35 - BASF

Ultramid® B3ZG7 OSI BK2373 is a 35% glass reinforced, pigmented black, heat stabilized, impact modified Polyamide 6 injection molding grade. It was developed to meet demanding mechanical and chemical requirements for the automotive oil pan application.

PREPROCESSING
Pre/Post-processing, max. allowed water content: .08 %
Pre/Post-processing, Pre-drying, Temperature: 80 °C
Pre/Post-processing, Pre-drying, Time: 2 - 4 h

PROCESSING
injection molding, Melt temperature, range: 270 - 295 °C
injection molding, Mold temperature, range: 80 - 95 °C

Material Handling
Max. Water content: 0.08%
Product is supplied in sealed containers and drying prior to molding is not required. If drying becomes necessary, a dehumidifying or desiccant dryer operating at 80 °C (176 °F) is recommended. Drying time is dependent on moisture level but 2-4 hours is generally sufficient.
Further information concerning safe handling procedures can be obtained from the Material Safety Data Sheet. Alternatively, please contact your BASF representative.

Typical Profile
Melt Temperature 270-295 °C (518-563 °F)
Mold Temperature 80-95 °C (176-203 °F)
Injection and Packing Pressure 35-125 bar (500-1800psi)
Rear Zone 245-275 °C (473-527 °F)
Center Zone 260-285 °C (500-545 °C)
Front Zone 270-295 °C (518-563 °F)
Nozzle 270-295 °C (518-563 °F)

Mold Temperatures
This product can be processed over a wide range of mold temperatures; however, for applications where aesthetics are critical, a mold surface temperature of 80-95 °C (176-203 °F) is required.

Pressures
Injection pressure controls the filling of the part and should be applied for 90% of ram travel. Packing pressure affects the final part and can be used effectively in controlling sink marks and shrinkage. It should be applied and maintained until the gate area is completely frozen off.

Back pressure can be utilized to provide uniform melt consistency and reduce trapped air and gas. Minimal back pressure should be utilized to prevent glass breakage. recommended to minimize glass fiber breakage.

Fill Rate
Fast fill rates are recommended to insure uniform melt delivery to the cavity and prevent premature freezing. Surface appearance is directly affected by injection rate.