Tips & Tricks no. 2 - The electrically conductive powder hose
hasn’t had it happen to them? You pick up a powder hose and suddenly it’s
literally like being struck by lighting!
During the coating process powder flows through the hose. Due to the friction
caused by this, the hose becomes electrostatically charged. Since it is not
earthed, it discharges as soon as the opportunity arises. An unsuspecting operator
can quickly become just such an opportunity.
To resolve this problem the hose needs to be earthed – but normally plastic
is not electrically conductive. This is why those resourceful people at Wagner
have come up with a powder hose with an electrically conductive core, a vein
of carbon running along the whole length of the hose.
When the new powder hose is used with a suitable injector
(PI-P1 or PI-F1), the discharges described above finally become a thing of the
past. With a few adaptations older injectors of Types PJ-2020PRS and PJ-D1 are
also compatible with the new electrically conductive powder hose.