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.
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Very High Viscosity Extrusion
Recommended Processing Considerations: Very High Viscosity Extrusion
Zone °F (C°) Feed 500-530 (260-277) Transition 520-560 (271-293) Metering 550-575 (288-302) Die 550-575 (288-302) Melt Temp. 550-575 (288-302) Line Rate pph-rpm 21/2" extruder 1.5-1.9 31/2" extruder 3.5-4.5 41/2" extruder 6.5-7.5 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.
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Very High Viscosity Copolymer Extrusion
Recommended Processing Considerations: Very High Viscosity Copolymer Extrusion
Zone °F (C°) Feed 420-445 (216-229) Transition 435-465 (224-241) Metering 445-475 (229-246) Die 445-475 (229-246) Melt Temp. 455-490 (235-254) Line Rate pph-rpm 21/2" extruder 1.5-1.9 31/2" extruder 3.5-4.5 41/2" extruder 6.5-7.5 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.
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Rotomolding Copolymer
Recommended Processing Considerations: Rotomolding Copolymer
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Plasticized Extrusion
Recommended Processing Considerations: Plasticized Extrusion
Zone °F (C°) Feed 420-440 (216-227) Transition 440-460 (227-238) Metering 450-470 (232-243) Die 450-470 (232-243) Melt Temp. 450-470 (232-243) Line Rate pph-rpm 21/2" extruder 1.5-1.9 31/2" extruder 3.5-4.5 41/2" extruder 6.5-7.5 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.
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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.
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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.
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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.
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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.
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PA6 Wire & Cable Extrusion
Recommended Processing Considerations: PA6 Wire & Cable Extrusion
Zone °F (C°) Zone 1 440-475 (227-246) Zone 2 440-475 (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) Crosshead 495-540 (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
Maximum Moisture* 0.20% Oven Temperature 550 - 650°F (288-343°C) Heating Time 20 to 25 min. * Available in Pre-Dried, Foil Lined Bags.
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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 Time 2-4 hrs. max. Maximum Moisture 0.002% 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 psipsi -
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.
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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.
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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.
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PA6 Injection Molding – Glass Reinforced < 15%
Recommended Processing Considerations: PA6 Injection Molding - Glass Reinforced < 15%
Pressure psi Injection 5-15,000 Hold 4-12,000 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 then 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.
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PA 6/69 Extrusion
Recommended Processing Considerations: PA 6/69 Extrusion
Zone °F (C°) Feed 450-470 (232-243) Transition 470-490 (243-254) Metering 445-475 (229-246) Die 480-500 (249-260) Melt Temp. 480-500 (249-260) Line Rate pph-rpm 21/2" extruder 1.5-1.9 31/2" extruder 3.5-4.5 41/2" extruder 6.5-7.5 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.
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PA 6/6,6 Injection Molding
Recommended Processing Considerations: PA 6/6,6 Injection Molding
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.002% Rear 460 - 520°F (238-271°C) Middle 480 - 520°F (249-271°C) Front 480 - 520°F (249-271°C) Nozzel 480 - 540°F (249-282°C) Melt Temperature 480 - 560°F (249-293°C) Mold Temperature 80 - 160°F (27-71°C) Back Pressure 460psi -
PA 6/6 Injection Molding – Glass Reinforced 15% – 50%
Recommended Processing Considerations: PA 6/6 Injection Molding - Glass Reinforced 15% - 50%
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.002% Rear 500 - 540°F (260-282°C) Middle 500 - 560°F (260-293°C) Front 500 - 560°F (260-293°C) Nozzel 500 - 560°F (260-293°C) Melt Temperature 520 - 560°F (271-293°C) Mold Temperature 80 - 160°F (27-71°C) Back Pressure 50 to 100 psipsi -
PA 6/6 Injection Molding – 40% Mineral Reinforced
Recommended Processing Considerations: PA 6/6 Injection Molding - 40% Mineral Reinforced
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.002% 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 - 540°F (249-282°C) Mold Temperature 80 - 160°F (27-71°C) Back Pressure 50 to 100 psipsi -
PA 6/6 Injection Molding – 20%-40% Mineral Reinforced
Recommended Processing Considerations: PA 6/6 Injection Molding - 20%-40% Mineral Reinforced
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.002% Rear 480 - 540°F (249-282°C) Middle 520 - 560°F (271-293°C) Front 520 - 560°F (271-293°C) Nozzel 520 - 560°F (271-293°C) Melt Temperature 520 - 540°F (271-282°C) Mold Temperature 80 - 160°F (27-71°C) Back Pressure 50 to 100 psipsi -
PA 6/6 Fast Molding – High Impact Injection Molding
Recommended Processing Considerations: PA 6/6 Fast Molding - High Impact Injection Molding
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.002% Rear 460 - 550°F (238-288°C) Middle 480 - 550°F (249-288°C) Front 480 - 550°F (249-288°C) Nozzel 480 - 560°F (249-293°C) Melt Temperature 500 - 550°F (260-288°C) Mold Temperature 80 - 160°F (27-71°C) Back Pressure 50 to 100 psipsi -
PA 6/12 Specialty Nylon
Recommended Processing Considerations: PA 6/12 Specialty Nylon
Pressure psi Injection 4 – 12,000 Hold 3 – 9,000 Back 0 – 50
Maximum Moisture: 0.2%Mold Temperature:
150-250 °F, highly filled grades require >175 °F to obtain the best overall surface appearanceResidence Time:
Should not exceed 6 minutes, less with higher melt temps.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 Temp.
Nylene 6/12 – 150-180 °F for 2-4 hours -
PA 6/12 Injection Molding
Recommended Processing Considerations: PA 6/12 Injection Molding
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.002% Rear 460 - 520°F (238-271°C) Middle 480 - 520°F (249-271°C) Front 480 - 520°F (249-271°C) Nozzel 480 - 540°F (249-282°C) Melt Temperature 480 - 560°F (249-293°C) Mold Temperature 80 - 160°F (27-71°C) Back Pressure 50 to 100 psipsi -
PA 6 Very High Impact Resistance
Recommended Processing Considerations: PA 6 Very High Impact Resistance
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max Maximum Moisture 0.002% 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 psipsi -
PA 6 Injection Molding Glass Reinforced 23%-25%
Recommended Processing Considerations: PA 6 Injection Molding Glass Reinforced 23%-25%
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.0015% 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 psipsi -
PA 6 High Viscosity Extrusion
Recommended Processing Considerations: PA 6 High Viscosity Extrusion
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.002% Rear 440 - 500°F (227-260°C) Middle 440 - 500°F (227-260°C) Front 450 - 520°F (232-271°C) Nozzel 450 - 520°F (232-271°C) Melt Temperature 450 - 520°F (232-271°C) Mold Temperature 80 - 160°F (27-71°C) Back Pressure 50 to 100 psipsi -
PA 12 Injection Molding
Recommended Processing Considerations: PA 12 Injection Molding
Drying Temperature 180°F (82°C) Drying Time 2-4 hrs. max. Maximum Moisture 0.002% 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 - 540°F (249-282°C) Mold Temperature 80 - 160°F (27-71°C) Back Pressure 50 to 100 psipsi -
Med Viscosity Extrusion
Recommended Processing Considerations: Med Viscosity Extrusion
Zone °F (C°) Feed 450-470 (232-243) Transition 470-490 (243-254) Metering 480-500 (249-260) Die 480-500 (249-260) Melt Temp. 480-500 (249-260) Line Rate pph-rpm 21/2" extruder 1.5-1.9 31/2" extruder 3.5-4.5 41/2" extruder 6.5-7.5 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.
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Low Viscosity Extrusion
Recommended Processing Considerations: Low Viscosity Extrusion
Zone °F (C°) Feed 430-450 (221-232) Transition 440-460 (227-238) Metering 450-480 (232-249) Die 450-480 (232-249) Melt Temp. 450-480 (232-249) Line Rate pph-rpm 21/2" extruder 1.5-1.9 31/2" extruder 3.5-4.5 41/2" extruder 6.5-7.5 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.
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Impact Modified Extrusion
Recommended Processing Considerations: Impact Modified Extrusion
Zone °F (C°) Feed 450-470 (232-243) Transition 470-500 (243-260) Metering 490-530 (254-277) Die 490-530 (254-277) Melt Temp. 490-530 (254-277) Line Rate pph-rpm 21/2" extruder 1.5-1.9 31/2" extruder 3.5-4.5 41/2" extruder 6.5-7.5 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.
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High Viscosity Extrusion
Recommended Processing Considerations: High Viscosity Extrusion
Zone °F (C°) Feed 420-445 (216-229) Transition 435-465 (224-241) Metering 445-475 (229-246) Die 445-475 (229-246) Melt Temp. 455-489 (235-254) Line Rate pph-rpm 21/2" extruder 1.5-1.9 31/2" extruder 3.5-4.5 41/2" extruder 6.5-7.5 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.
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High Viscosity Blow Molding
Recommended Processing Considerations: High Viscosity Blow Molding
Zones °F (C°) Feed 500-530 (260-277) Transition 520-560 (271-293) Metering 550-575 (288-302) Upper Die 550-575 (288-302) Lower Die 500-260 (550-288) Melt Temp. 550-575 (288-302) Line Rate pph-rpm 2 1/2"" extruder 1.5-1.9 3 1/2"" extruder 3.5-4.5 4 1/2"" extruder 6.5-7.5 Pressure psi Pre-Blow 15-25 Air-Blow 35-45 Back psi 0-50 Processing Conditions: Blow Molding High Viscosity PA 6Melt
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.Line
Fill Rate: fast fill rates are suggested for best surface appearance.
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, using settings of 180 ?F (82?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.
