Molding Guide

Molding Guide


 

DAP Molding Guide

Screw-Injection Process

Plastication
Stock Temperature
Molding Temperature
Injection Pressure
Hold Pressure
Back Pressure (Gauge)
Barrel Temperature: Rear
Barrel Temperature: Middle
Barrel Temperature: Nozzle

Recommended Molding Conditions

50 rpm
220 – 240 °F
320 – 360 °F
Set to give 10 – 15 Sec. injection time
1/2 Injection Pressure
50 psi or less
140 – 160 °F
170 – 180 °F
190 – 200 °F

Compression / Transfer:

Preforming Pressure
Molding Temperature
Pre-heat Temperature
Clamp Pressure: Transfer
Clamp Pressure: Compression
Cure Time – 1/8″

Recommended Molding Conditions

6,000 – 12,000 psi
310 – 360 °F
220 – 240 °F
2,000 – 5,000 psi
3,000 – 6,000 psi
40 – 75 Seconds

Epoxy Molding Guide

Screw-Injection Process
(Electrical Encapsulation)

Stock Temperature
Molding Temperature
Injection Pressure
Hold Pressure
Back Pressure (Gauge)
Barrel Temperature: Middle
Barrel Temperature: Nozzle

Recommended Molding Conditions

 

200 – 240 °F
300 – 360 °F
5,000 – 10,000 psi
2,500 – 5,000 psi
50 psi or less
150 – 180 °F
160 – 200 °F

Screw-Injection Process
(Hardware Grade)

Stock Temperature
Molding Temperature
Injection Pressure
Hold Pressure
Back Pressure (Gauge)
Barrel Temperature: Middle
Barrel Temperature: Nozzle

Recommended Molding Conditions

 

200 – 240 °F
310 – 350 °F
5,000 – 10,000 psi
2,500 – 5,000 psi
50 psi or less
150 – 180 °F
180 – 200 °F