A Mechanical Purge That Scours — Not Smears
UniTemp develops and manufactures mechanical purging compounds for plastic manufacturers operating injection molding and extrusion equipment that also function as a screw pull aid during maintenance.
Under the PEKUTHERM® name, UniTemp offers a complete family of formulations engineered to physically scour contamination from screws, barrels, and flow paths—WITHOUT chemical reactions, carrier resins, or lubricating films.
Processors evaluating purge products should understand the differences between mechanical vs chemical purging compounds and how each approach cleans processing equipment.
https://www.pekutherm.org/post/mechanical-vs-chemical-purging-compounds-2026
What Makes PEKUTHERM® Different?
Unlike chemical, carrier-resin, or lubricating purges, PEKUTHERM® works through thermoelastic mechanical action.
One mechanical purge system. Multiple formulations.
All PEKUTHERM® products share the same core mechanical behavior. Formulations differ only by temperature range, machine size, and application type.
PEKUTHERM® Product System Overview
Injection Molding Formulations
Designed for plastic injection molding machines across standard, high-temperature, and ultra-low-temperature applications.
Available formulations:
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N – Large machines (150 tons and above)
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SM – Mid-size machines (80–150 tons)
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SK – Small machines (under 80 tons)
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HLT – High-temperature applications
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HLT Fine – High-temperature, fine granulation
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ULT – Ultra-low-temperature applications
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ULT Fine – Ultra-low-temperature, fine granulation
Typical uses:
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Color and material changeovers
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Carbon and degradation removal
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Preventive maintenance purging
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Screw pull preparation
Extrusion Formulations
Engineered for continuous extrusion processes while maintaining PEKUTHERM®’s mechanical scouring action.
Available formulations:
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EX – Standard extrusion applications
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HLT – High-temperature extrusion
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ULT – Low-temperature extrusion
Typical uses:
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Profile, pipe, sheet, film, and tubing extrusion
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Material transitions
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Carbon and buildup removal
What PEKUTHERM® Helps You Achieve
Across all formulations, PEKUTHERM® is designed to help processors:
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Reduce downtime during changeovers
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Remove color, carbon, and degraded polymers
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Minimize scrap and startup waste
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Confirm machine cleanliness without wasting incoming material
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Maintain equipment integrity without abrasive wear
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Achieve consistent, repeatable purging results
What to Expect When You Use PEKUTHERM®
Our purging compounds feature unique properties designed for effective, chemical-free cleaning during production.
Need help interpreting specs?
UniTemp provides direct technical guidance and sample validation.
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Direct support
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No distributor friction
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Engineering-led trust
One of the most common reasons processors purge extrusion systems is to remove carbon buildup caused by degraded polymers.
https://www.pekutherm.org/post/carbon-buildup-extruder-cleaning-2026
What UniTemp Helps You Confirm
Correct Formulation
Verify the right PEKUTHERM® formulation based on temperature, machine size, and process type.
Proper Application
Confirm purge method for production changeovers or maintenance use.
Expected Results
Understand what a successful purge looks like before running full production.
Learn About Plastic Purging Compounds
PEKUTHERM® mechanical purging compounds are used by plastics processors worldwide to clean injection molding machines and extrusion equipment. Our technical guides explain how purging compounds work, when to use them, and how operators can reduce downtime during color or material changeovers.
Explore our latest guides:
What Are Purging Compounds? A Complete Guide for Plastics Processors (2026)
Mechanical vs Chemical Purging Compounds: What Plastics Processors Need to Know
https://www.pekutherm.org/post/mechanical-vs-chemical-purging-compounds-2026
How to Purge an Extruder (2026 Guide)
https://www.pekutherm.org/post/how-to-purge-an-extruder-2026
How to Purge an Injection Molding Machine (2026 Guide)
https://www.pekutherm.org/post/purge-injection-molding-machine-2026
Carbon Buildup in Plastic Processing Equipment: Causes and Cleaning Methods
https://www.pekutherm.org/post/carbon-buildup-extruder-cleaning-2026
PEKUTHERM® ULT: Ultra-Low Temperature Purging for Injection Molding
https://www.pekutherm.org/post/pekutherm-ult-ultra-low-temperature-purging-injection-molding