OBO Precision Blog
Engineering guides for dispensing machines, potting systems, materials, applications, equipment selection, and troubleshooting.
Thermal Gel vs Thermal Grease: Which Dispensing Process Fits Better?
Thermal gel and thermal grease are not interchangeable just because both transfer heat. They behave differently during dispensing, compression, and long-term service, so the process
How Should Engineers Choose a Dispensing Process for Thermal Interface Materials?
Thermal interface materials are functional process materials, not just thick adhesives. The dispensing process has to deliver the right amount, in the right place, with
When Is a Heated Dispensing System Necessary for High-Viscosity Materials?
Heating is one of the most effective ways to stabilize a thick adhesive process, but it is also one of the easiest ways to damage
What Is the Best Dispensing Process for EMI Shielding Adhesives?
EMI shielding adhesives are not dispensed like ordinary sealants. The process must control bead shape and placement without damaging conductivity, filler distribution, or interface quality.
How Do You Prevent Needle Dripping After Dispensing Stops?
Post-stop needle dripping is a control problem between material behavior and valve shutoff. If the system keeps storing pressure after the dispense event, the material
Why Does Resin Cracking Happen After Potting?
Cracking after potting is usually a stress-management problem, not only a material brand problem. The crack may appear because the cured resin, the product geometry,
How Should Buyers Evaluate Dispensing Machine Repeatability Specifications?
Repeatability is one of the most abused words in dispensing equipment sales. A machine can have good motion repeatability and still produce unstable beads if
Epoxy Potting vs Silicone Potting for Automotive Electronics
Automotive electronics rarely need the 'best' potting material in the abstract. They need the material that matches the mechanical stress, temperature cycle, substrate combination, and
How Do You Calculate Cycle Time for an Automatic Dispensing Line?
Cycle time in automated dispensing is not just robot speed. Factories often underestimate the real takt because they ignore loading losses, valve response, cure buffering,