|
|
Nozzle Type |
||
|
Material |
Pinpoint |
Valve Gate |
General Purpose |
|
ABS |
+ 0.71 |
+ |
+(1) |
|
ABS GF |
+(2) 0.89 |
+ |
+ |
|
ABS/Polycarbonate |
+ 0.76 |
+ |
+ |
|
Acetal (Copolymer) |
+ 0.71 |
+ |
+(1) |
|
Acetal GF (Copolymer) |
+(2) 0.76 |
+ |
+ |
|
Acrylic |
+ 0.76 |
+ |
+(1) |
|
Cellulose Acetate |
+ 0.81 |
+ |
+(1) |
|
Noryl (PPO) |
+ 0.81 |
+ |
+ |
|
Nylon 6 |
+ 0.76 |
+ |
+(1) |
|
Nylon 6 GF |
+(2) 0.89 |
+ |
+ |
|
Nylon 66 |
+ 0.76 |
+ |
+(1) |
|
Nylon 66 GF or MF |
+(2) 0.89 |
+ |
+ |
|
LCP |
+ 0.89 |
+ |
+(1) |
|
LCP GF |
+ |
+ |
+(1) |
|
Polycarbonate |
+ 0.76 |
+ |
+(1) |
|
Polycarbonate GF |
+(2) 0.89 |
+ |
+ |
|
Polyester (PBT) |
+(2) 0.76 |
+ |
+ |
|
Polyester (PBT) GF |
+ |
+ |
+ |
|
Polyester (PET) |
+(2) 0.81 |
+ |
+ |
|
Polyester (PET) GF |
+(2) 0.89 |
+ |
+ |
|
Polyethylene |
+ 0.71 |
+ |
+(1) |
|
Polypropylene |
+ 0.71 |
+ |
+(1) |
|
Polypropylene GF |
+(2) 0.76 |
+ |
+(1) |
|
Polystyrene |
+ 0.71 |
+ |
+(1) |
|
SAN |
+ 0.71 |
+ |
+(1) |
|
Polyurethane |
+ |
+ |
+(1) |
|
PVC (Flexible or Rigid) |
+ |
+ |
+ |
|
TPE (Olefinic or Styrenic) |
+ 0.66 |
+ |
+(1) |
Note: This chart should be used as a guide only.
Dimensions listed represent the starting gate diameter (mm).
KEY: + = Most Suitable + = Suitable With Caution + = Not Recommended
(1) = This gate design may cause stringing if insufficient gate cooling is used with these materials
(2)= The pinpoint gate nozzle should be used with caution in glass/mineral filled applications. A hardened tip insert is required. Please consult Polyshot.
GF - Glass Filled materials will wear out components faster than non-filled materials. In some applications it may be necessary to heat treat the manifold to a higher than normal hardness.
Flame retardant materials tend to have shorter than normal residence times. The result can be less than satisfactory in molding small parts in some applications.