20
If you dispense high viscosity fluids, several problems may occur:
First,
the repetitive air cycles can bore tunnels through non-leveling fluids, causing spitting and inconsistent
deposits.
Second,
thick fluids contain trapped air that leads to drooling and oozing.
These problems are eliminated by using the piston. That's because the white pistons prevent tunneling by
providing a barrier to the pulsed-air cycles, and prevent oozing by responding to the pressure of trapped air
with a slight suck-back movement after the dispense cycle.
Note:
For best results, we strongly recommend that you use a piston as part of your dispensing system.
6. Filling the Syringe Barrel
Caution:
Do not completely fill syringe barrels. The optimum fill is a
maximum 2/3 of the barrel capacity and 1/2 of the barrel capacity when
using the Drifton blue LV Barrier piston.
If the fluid you are dispensing is procurable
, take the syringe barrel, twist
on a tip cap and pour your fluid in.
Insert a white piston and carefully press down until it contacts the fluid. The
syringe barrel is now ready for use.
If your fluid is thick or non-leveling
, you can spoon it into the syringe
barrel with a spatula.
