PALAMAU, INDIA – September 19, 2026 – When an injection molding production run ends, leftover material inside the machine does not always disappear with it. Residual resin, burned material, contaminants and deposits can remain in the barrel and potentially affect the following production cycle.


UNICLEANPLUS is highlighting the importance of giving machine cleaning proper attention during production changeovers. Its ready-to-use, pre-mixed Purging Material Injection Moulding is designed to support the removal of unwanted residual material from injection molding equipment.

Changeovers can be particularly challenging when manufacturers switch colours, resins or production materials. Residual material from an earlier run may contribute to colour contamination, carbon buildup or unwanted material appearing in subsequent parts. UNICLEANPLUS provides purging compounds intended to help manufacturers address these cleaning requirements.

A Structured Approach to Injection Molding Purging

UNICLEANPLUS explains that effective purging involves more than simply introducing a purging compound into the machine. Its published procedure includes several process considerations, such as appropriate temperature settings, cleaning the hopper and feed throat, controlling backpressure and adjusting screw speed.

The procedure can also involve repeating the purging process when contaminants or residual material remain visible. Following the appropriate process can help manufacturers maintain greater consistency during equipment changeovers.

“The last job doesn't always leave quietly. Sometimes it stays in the barrel and shows up when you least want it to. That's why the cleaning stage needs its own attention.”

For injection molding operations, reducing unnecessary changeover delays can be important for maintaining production efficiency. UNICLEANPLUS states that its purging compounds can help address scrap parts, carbon accumulation, colour hang-up, colour-change time and downtime associated with residual material.

Supporting Cleaner Production Changeovers

Treating purging as a dedicated part of the production process can help manufacturers prepare their equipment for the next job. Rather than considering cleaning only after a problem appears, injection molders can incorporate suitable purging practices into their regular changeover procedures.

UNICLEANPLUS offers ready-to-use purging compounds for injection molding, as well as trial samples and consultation for manufacturers interested in evaluating its products.

About UNICLEANPLUS

UNICLEANPLUS™ provides purging compounds for plastic processing applications, including injection molding, extrusion and blow molding. The company offers pre-mixed, ready-to-use products together with application guidance, purging procedures, trial samples and consultation for customers seeking purging solutions.