Datasheet

WHITE
Pack of
Size 3 cc
Size 5 cc
Size 10 cc
Size 30/55 cc
Tight Fit Piston
50
903-WW
905-WW
910-WW
93055-WW
BLUE
Pack of
Size 3 cc
Size 5 cc
Size 10 cc
Size 30/55 cc
Easy Flow
50
903-EFB
905-EFB
910-EFB
93055-WW
RED
Pack of
Size 3 cc
Size 5 cc
Size 10 cc
Size 30/55 cc
Straight Wall
50
903-SWR
905-SWR
910-SWR
93055-WW
www.okinternational.com www.metcal.com
Pistons ensure that the pressure is evenly spread across the fluid surface to provide consistent
dispensing. Wiper seal pistons prevent dripping and eliminate material waste by wiping the syringe
barrel wall clean, as fluid is dispensed. Dispensing without a piston inserted can result in unreliable
dispensing deposits, as the supplied air pressure can become trapped inside the fluid, resulting in
void pockets. In addition, moisture found in the air can affect the properties of the fluid. Metcal is
pleased to demonstrate the advantages of each piston type:
900 Series Piston Comparison
Typical Applications: Solder paste, flux, Silver paste, Anaerobic, epoxy, SMA,
silicone, UV...
The tighter fit wiper pistons are recommended for use with low viscosity fluids and
mechanical devices, such as a manual syringe gun, to prevent leakage past the
double wiping edges
Typical Applications: Solvent, Alcohol, Inks, Activators, any fluid used on the
910/930/955-MSG manual rod/gun including UV fluids…
Low friction pistons are recommended for most general applications. They
prevent air entrapment and eliminate material waste by wiping the syringe barrel
wall clean.
Straight wall pistons are recommended for reduced stringing and "bouncing"
when dispensing high viscosity fluids.
Typical Applications: Grease, Viscous Sealant, SMA, RTV
Silicone…