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Technical Resources

Processing Guides

Please note: Nylene does not guarantee the accuracy of this processing information for any given usage situation. These values are based on test specimens and should not be used to establish specification limits or fabricate tooling.

  • Very High Viscosity Extrusion

    Recommended Processing Considerations: Very High Viscosity Extrusion

    Zone°F (C°)
    Feed500-530 (260-277)
    Transition520-560 (271-293)
    Metering550-575 (288-302)
    Die
    		550-575 (288-302)
    Melt Temp.
    		550-575 (288-302)
    Line Ratepph-rpm
    21/2" extruder1.5-1.9
    31/2" extruder3.5-4.5
    41/2" extruder6.5-7.5

    Residence Time: Screw should not be left idle for more than 3-4 minutes with melt in the barrel. Excess residence will be visible as black carbon specs in the melt.

    Regrind Level: Typically, up to 25% is recommended but higher levels are possible with little or no effect on flow and finish.

    Drying Temperature: Although Nylene resins are packaged and delivered in a low moisture state, it is good material handling practice to use a hopper dryer to maintain dryness. Should pre-drying be necessary, use settings of 180 °F (82.2°C) air at dew point of -40 at a rate of 1 cu. ft. / hour per pound of resin and a residence time of 2-4 hours.

    Cooling and Sizing: While both air and water can be used as the cooling medium, air is preferred. The use of air allows additional time for sizing and reduces residual stress. This aids in reducing warpage, especially in profiles with varying wall sections. If water is used, heat the first section to above 100 °F (38°C) to reduce quenching and residual stress.

    Die Design: Draw down of 30% is typical for all dimensions except wall thickness.

    Land length: should be around 10x wall thickness.

  • Very High Viscosity Copolymer Extrusion

    Recommended Processing Considerations: Very High Viscosity Copolymer Extrusion

    Zone°F (C°)
    Feed420-445 (216-229)
    Transition435-465 (224-241)
    Metering445-475 (229-246)
    Die
    		445-475 (229-246)
    Melt Temp.
    		455-490 (235-254)
    Line Ratepph-rpm
    21/2" extruder1.5-1.9
    31/2" extruder3.5-4.5
    41/2" extruder6.5-7.5

    Residence Time: Screw should not be left idle for more than 3-4 minutes with melt in the barrel. Excess residence will be visible as black carbon specs in the melt.

    Regrind Level: Typically, up to 25% is recommended but higher levels are possible with little or no effect on flow and finish.

    Drying Temperature: Although Nylene resins are packaged and delivered in a low moisture state, it is good material handling practice to use a hopper dryer to maintain dryness. Should pre-drying be necessary, use settings of 65 °C (150°F) air at dew point of -40 at a rate of 1 cu. ft. / hour per pound of resin and a residence time of 2-4 hours.

    Cooling and Sizing: While both air and water can be used as the cooling medium, air is preferred. The use of air allows additional time for sizing and reduces residual stress. This aids in reducing warpage, especially in profiles with varying wall sections. If water is used, heat the first section to above 38 °C (100°F) to reduce quenching and residual stress.

    Die Design: Draw down of 30% is typical for all dimensions except wall thickness.

    Land length: should be around 10x wall thickness.


  • Very High Impact Resistance

    Recommended Processing Considerations: Very High Impact Resistance

    Drying Temperature
    		180°F (82°C)
    Drying Time2-4 hrs. max
    Maximum Moisture0.20%
    Rear
    		460 - 520°F (238-271°C)
    Middle
    		480 - 520°F (249-271°C)
    Front
    		480 - 520°F (249-271°C)
    Nozzel
    		480 - 560°F (249-293°C)
    Melt Temperature
    		480 - 560°F (249-293°C)
    Mold Temperature
    		80 - 160°F (27-71°C)
    Back Pressure
    		50 to 100 psi
  • Rotational Molding Copolymer

    Recommended Processing Considerations: Rotational Molding Copolymer

    Heating Time 20 to 25
    Maximum Moisture* 0.20%
    Oven Temperature 550 - 650°F (288-343°C)
    • Available in Pre-Dried, Foil Lined Bags.
  • Plasticized Extrusion

    Recommended Processing Considerations: Plasticized Extrusion

    Zone°F (C°)
    Feed420-440 (216-227)
    Transition440-460 (227-238)
    Metering450-470 (232-243)
    Die
    		450-470 (232-243)
    Melt Temp.
    		450-470 (232-243)
    Line Ratepph-rpm
    21/2" extruder1.5-1.9
    31/2" extruder3.5-4.5
    41/2" extruder6.5-7.5

    Residence Time: Screw should not be left idle for more than 3-4 minutes with melt in the barrel. Excess residence will be visible as black carbon specs in the melt.

    Regrind Level: Typically, up to 25% is recommended but higher levels are possible with little or no effect on flow and finish.

    Drying Temperature: Although Nylene resins are packaged and delivered in a low moisture state, it is good material handling practice to use a hopper dryer to maintain dryness. Should pre-drying be necessary, use settings of 180 °F (82.2°C) air at dew point of -40 at a rate of 1 cu. ft. / hour per pound of resin and a residence time of 2-4 hours.

    Cooling and Sizing: While both air and water can be used as the cooling medium, air is preferred. The use of air allows additional time for sizing and reduces residual stress. This aids in reducing warpage, especially in profiles with varying wall sections. If water is used, heat the first section to above 100 °F (38°C) to reduce quenching and residual stress.

    Die Design: Draw down of 30% is typical for all dimensions except wall thickness.

    Land length: should be around 10x wall thickness.

  • PA6/6 Injection Molding – Unreinforced

    Recommended Processing Considerations: PA6/6 Injection Molding - Unreinforced

    Pressure psi
    Injection 7-15,000
    Hold 5-12,000
    Back 0-50

    Melt Temperature: Nylene® PA6/6 melts at 490 °F (254°C), actual melt temperatures of 540-600 (282-316°C) are permissible, depending on residence time and shot size.

    Mold Temperature: 120-200 °F (49-93°C), highly filled grades require 180-200 °F (82-93°C) to obtain the best overall surface appearance, higher temperatures will increase crystallinity.

    Residence Time: should not exceed 6 minutes if possible, less with higher melt temperatures.

    Shot Size: should be between 25-75% of barrel capacity.

    Fill Rate: fast fill rates are suggested for best surface appearance.

    Regrind Level: typically no more than 25% is recommended, with higher levels possible for unfilled grades depending on the end use requirements. Make certain regrind is properly dried to virgin moisture levels.

    Drying Temperature: 150-180 °F (65-182°C)(for 2-4 hours, Nylene® PA6/6 should be dried to less then 0.20% moisture for optimum performance. Drying longer than 4 hours or at higher temperatures may cause oxidation of the polymer or remove essential volatiles.

  • PA6/6 Injection Molding – Impact Modified

    Recommended Processing Considerations: PA6/6 Injection Molding - Impact Modified

    Pressure psi
    Injection 7-15,000
    Hold 5-12,000
    Back 0.50

    Melt Temperature: Nylene® PA6/6 melts at 490 °F (254°C), actual melt temperatures of 540-600 (282-316°C) are permissible, depending on residence time and shot size.

    Mold Temperature: 120-200 °F (49-93°C), highly filled grades require 180-200 °F (82-93°C) to obtain the best overall surface appearance, higher temperatures will increase crystallinity.

    Residence Time: should not exceed 6 minutes if possible, less with higher melt temperatures.

    Shot Size: should be between 25-75% of barrel capacity.

    Fill Rate: fast fill rates are suggested for best surface appearance.

    Regrind Level: typically no more than 25% is recommended, with higher levels possible for unfilled grades depending on the end use requirements. Make certain regrind is properly dried to virgin moisture levels.

    Drying Temperature: 150-180 °F (65-82°C) for 2-4 hours, Nylene® PA6/6 should be dried to less then 0.20% moisture for optimum performance. Drying longer than 4 hours or at higher temperatures may cause oxidation of the polymer or remove essential volatiles.

  • PA6/6 Injection Molding – Glass Reinforced >15%

    Recommended Processing Considerations: PA6/6 Injection Molding - Glass Reinforced >15%

    Pressure psi
    Injection 5-15,000
    Hold 4-12,000
    Back 0-50

    Melt Temperature: Nylene PA6/6 melts at 490 °F (254°C), actual melt temperatures of 540-600 (282-316°C) are permissible, depending on residence time and shot size.

    Mold Temperature: 120-200 °F (49-93°C), highly filled grades require 180-200 °F (82-93°C) to obtain the best overall surface appearance, higher temperatures will increase crystallinity.

    Residence Time: should not exceed 6 minutes if possible, less with higher melt temperatures.

    Shot Size: should be between 25-75% of barrel capacity.

    Fill Rate: fast fill rates are suggested for best surface appearance.

    Regrind Level: typically no more than 25% is recommended, with higher levels possible for unfilled grades depending on the end use requirements. Make certain regrind is properly dried to virgin moisture levels.

    Drying Temperature: 150-180 °F (65-182°C) (for 2-4 hours, Nylene PA6/6 should be dried to less than 0.20% moisture for optimum performance. Drying longer than 4 hours or at higher temperatures may cause oxidation of the polymer or remove essential volatiles.

  • PA6/6 Injection Molding – Glass Reinforced <15%

    Recommended Processing Considerations: PA6/6 Injection Molding - Glass Reinforced <15%

    Pressure psi
    Injection 5-15,000
    Hold 4-12,000
    Back 0-50

    Melt Temperature: Nylene PA6/6 melts at 490 °F (254°C), actual melt temperatures of 540-600 (282-316°C) are permissible, depending on residence time and shot size.

    Mold Temperature: 120-200 °F (49-93°C), highly filled grades require 180-200 °F (82-93°C) to obtain the best overall surface appearance, higher temperatures will increase crystallinity.

    Residence Time: should not exceed 6 minutes if possible, less with higher melt temperatures.

    Shot Size: should be between 25-75% of barrel capacity.

    Fill Rate: fast fill rates are suggested for best surface appearance.

    Regrind Level: typically no more than 25% is recommended, with higher levels possible for unfilled grades depending on the end use requirements. Make certain regrind is properly dried to virgin moisture levels.

    Drying Temperature: 150-180 °F (65-182°C) (for 2-4 hours, Nylene PA6/6 should be dried to less than 0.20% moisture for optimum performance. Drying longer than 4 hours or at higher temperatures may cause oxidation of the polymer or remove essential volatiles.

  • PA6 Wire & Cable Extrusion

    Recommended Processing Considerations: PA6 Wire & Cable Extrusion

    Zone°F (C°)
    Zone 1
    		440-475 (227-246)
    Zone 2440-475 (227-246)
    Zone 3
    		440-475 (227-246)
    Zone 4
    		440-475 (227-246)
    Zone 5
    		495-540 (257-282)
    Delivery°F (C°)
    Flange
    		495-540 (257-282)
    Crosshead495-540 (257-282)
    Die
    		495-540 (257-282)

    DRYING TEMPERATURE:
    140-160 °F (60-71°C) for 2-4 hours, Nylene® PA6 should be dried to less than 0.15% moisture for optimum performance. Drying longer than 4 hours or at higher temperatures may cause oxidation of the polymer or remove essential volatiles.

  • PA6 Rotational Molding

    Recommended Processing Considerations: PA6 Rotational Molding

    Heating Time 20 to 25 min.
    Maximum Moisture* 0.20%
    Oven Temperature 550 - 650°F (288-343°C)

    * Available in Pre-Dried, Foil Lined Bags.

  • PA6 MoS2 Lubricated/Target Amine Group Injection Molding

    Recommended Processing Considerations: PA6 MoS2 Lubricated/Target Amine Group Injection Molding

    Drying Temperature
    		180°F (82°C)
    Drying Time2-4 hrs. max.
    Maximum Moisture0.002%
    Rear
    		460 - 520°F (238-271°C)
    Middle
    		460 - 520°F (238-271°C)
    Front
    		460 - 520°F (238-271°C)
    Nozzel
    		460 - 520°F (238-271°C)
    Melt Temperature
    		460 - 520°F (238-271°C)
    Mold Temperature
    		80 - 460°F (27-238°C)
    Back Pressure
    		50 to 100 psi
  • PA6 Injection Molding – Unreinforced

    Recommended Processing Considerations: PA6 Injection Molding - Unreinforced

    Pressure psi
    Injection 4-12,000
    Hold 3-9,000
    Back 0-50

    Melt Temperature: Melt Temperature: Nylene® PA6 melts at 428°F, (220°C) actual melt temperatures of 440-560°F (227-293°C) are permissible, depending on residence time and shot size.

    Mold Temperature: 120-200°F (49-93°C), highly filled grades require 180-200°F (82-93°C) to obtain the best overall surface appearance, higher temperatures will increase crystallinity.

    Residence Time: should not exceed 6 minutes if possible, less with higher melt temperatures

    Shot Size: should be between 25-75% of barrel capacity.

    Fill Rate: fast fill rates are suggested for best surface appearance.

    Regrind Level: typically no more than 25% is recommended, with higher levels possible for unfilled grades depending on the end use requirements. Make certain regrind is properly dried to virgin moisture levels.

    Drying Temperature: 150-180°F (66-82°C) for 2-4 hours, Nylene® PA6 should be dried to less than 0.20% moisture for optimum performance. Drying longer than 4 hours or at higher temperatures may cause discoloration of the polymer or adversely affect important physical properties.

  • PA6 Injection Molding – Impact Modified

    Recommended Processing Considerations: PA6 Injection Molding - Impact Modified

    Pressure psi
    Injection 7-15,000
    Hold 5-12,000
    Back 0.50

    Melt Temperature: Melt Temperature: Nylene® PA6 melts at 428°F, (220°C) actual melt temperatures of 440-560°F (227-293°C) are permissible, depending on residence time and shot size.

    Mold Temperature: 120-200°F (49-93°C), highly filled grades require 180-200°F (82-93°C) to obtain the best overall surface appearance, higher temperatures will increase crystallinity.

    Residence Time: should not exceed 6 minutes if possible, less with higher melt temperatures

    Shot Size: should be between 25-75% of barrel capacity.

    Fill Rate: fast fill rates are suggested for best surface appearance.

    Regrind Level: typically no more than 25% is recommended, with higher levels possible for unfilled grades depending on the end use requirements. Make certain regrind is properly dried to virgin moisture levels.

    Drying Temperature: 150-180°F (66-82°C) for 2-4 hours, Nylene® PA6 should be dried to less than 0.20% moisture for optimum performance. Drying longer than 4 hours or at higher temperatures may cause discoloration of the polymer or adversely affect important physical properties. moisture levels.

     

  • PA6 Injection Molding – Glass Reinforced >15%

    Recommended Processing Considerations: PA6 Injection Molding - Glass Reinforced >15%

    Pressure psi
    Injection 8-18,000
    Hold 6-15,000
    Back 0-50

    Melt Temperature: Nylene PA6 melts at 428°F, (220°C) actual melt temperatures of 440-560°F (227-293°C) are permissible, depending on residence time and shot size.

    Mold Temperature: 120-200°F (49-93°C), highly filled grades require 180-200°F (82-93°C) to obtain the best overall surface appearance, higher temperatures will increase crystallinity.

    Residence Time: should not exceed 6 minutes if possible, less with higher melt temperatures.

    Shot Size: should be between 25-75% of barrel capacity.

    Fill Rate: fast fill rates are suggested for best surface appearance.

    Regrind Level: typically no more than 25% is recommended, with higher levels possible for unfilled grades depending on the end use requirements. Make certain regrind is properly dried to virgin moisture levels.

    Drying Temperature: 150-180°F (66-82°C) for 2-4 hours, Nylene PA6 should be dried to less than 0.20% moisture for optimum performance. Drying longer than 4 hours or at higher temperatures may cause discoloration of the polymer or adversely affect important physical properties.

  • PA6 Injection Molding – Glass Reinforced < 15%