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Processing advice Durethan (Injection molding)
 
The following information applies when the product is processed by injection molding. If other processing methods, such as extrusion, are used, then the parameters can differ considerably from the figures given here.


Drying

Care must be taken to ensure that the pellets are processed in a sufficiently dry state.


Permitted residual moisture content0.12% 
Drying temperature176 °F (80 °C) 
Drying timeDry air dryer
2 to 20 hours (depending on starting moisture content)		Fresh air dryer
not suitable


General injection molding conditions

The figures given are the upper and lower limits for the whole range of grades. The melt temperature for the easy-flow grades will generally be selected from the lower end of the range and the melt temperature for standard grades from the upper end of the range.
Actual processing conditions will depend on machine size, mold design, material residence time, shot size, etc.


 Durethan A (PA 66)Durethan B (PA 6)Durethan T (PA 6I)
 non-reinforcedreinforcednon-reinforcedreinforcednon-reinforced
Melt temperature527 - 563 °F
(275 - 295 °C)		536 - 572 °F
(280 - 300 °C)		500 - 536 °F
(260 - 280 °C)		518 - 554 °F
(270 - 290 °C)		500 - 536 °F
(260 - 280 °C)
Mold temperature176 - 212 °F
(80 - 100 °C)		176 - 248 °F
(80 - 120 °C)		176 - 212 °F
(80 - 100 °C)		176 - 248 °F
(80 - 120 °C)		176 - 212 °F
(80 - 100 °C)
Permitted residence time4 - 10 minutes
Maximum circumferential
velocity of screw 		0.3 m/s *

* Higher velocities are possible by processing Easy Flow und Extreme Flow grades.


For specific processing data also consider the dedicated material data sheet.

You will find more information in our brochure

_Durethan PA Injection Molding Guide