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Views: 0 Author: Site Editor Publish Time: 2026-01-16 Origin: Site
In dispensing and potting processes (epoxy, polyurethane/PU, silicone, UV resin, and 2K materials), tubing isn’t “just a hose.” The wrong potting machine tubing can cause three expensive problems:
Chemical attack or contamination: solvents/cleaners can swell or degrade the tube and introduce impurities into the resin.
Build-up and clogging: sticky materials or crystallized deposits increase downtime and scrap.
Unstable dosing: ID variation or insufficient pressure rating leads to flow drift, pulsation, and leaks.
This guide explains how to select PTFE, FEP, or PFA tubing for potting machines, what specs matter most, and when custom tubing assemblies are the smarter choice.
Most systems use tubing in several critical locations:
Tank / supply pump → metering pump → mixing head (main transfer line)
Near the dispensing valve/nozzle (short precision section—most sensitive to ID tolerance)
Solvent cleaning loop (highest exposure to aggressive chemicals)
Heated or insulated zones (near heated tanks, heated valves, hot plates, or heated mixing heads)
If you’re seeing “same program, different output,” frequent clogging, or cleaning that never fully restores performance, tubing material and inner-surface condition are often the root cause.
