Automotive electronics lamp module coating: polyurethane potting compound case study

Background

An equipment integrator / manufacturer in Automotive electronics needed to coating on a lamp module using polyurethane potting compound.

Process challenge

Bead width and height must stay stable with no edge creep.

Solution

We recommended Pneumatic Valve + Glue Supply System, with using a servo dispensing module with a programmable speed profile to hold a constant extrusion rate.

Result

Volume drift held within ±3% over an 8-hour run.
Shot volume 0.1 mL with deviation within ±3%.
Cycle time 0.9 s per dot with no stringing or dripping during continuous running.

Project facts

Industry: Automotive electronics
Workpiece: lamp module
Fluid: polyurethane potting compound
Process: coating
Recommended lines: Pneumatic Valve, Glue Supply System