Ultra Purge™
Purging compounds for plastics processing machinery
Ultra Purge™ by Chem-Trend is a professional line of purging compounds for injection, extrusion and blow-moulding machines. They efficiently remove residual polymer, colourants and deposits from the plasticising unit, hot runner and die — cutting colour and material changeover time and reducing start-up scrap.
Manufacturer

Chem-Trend
- Ultra Purge™ covers mechanical, chemical and chemical-mechanical grades — selected by machine type, process (injection, extrusion, blow moulding) and operating temperature up to about 420 °C.
- The line offers general-purpose grades, hot-runner grades, film and profile extrusion grades, multi-colour machine grades and dedicated food-contact and medical variants.
- Ultra Purge™ helps cut scrap and machine downtime — a real impact on OEE and unit cost.
Effective removal of polymer and colour residues
Shorter colour and material changeover time
Reduced start-up scrap
Operating range up to ~420 °C
Grades for hot runners and high temperatures
Food-contact and medical variants
Injection moulding (incl. hot runners)
Extrusion of profiles, film and pipe
Blow moulding
Automotive
Electronics and home appliances
Packaging (including food)
Medical applications
Technical parts
- Shorter changeover and colour-change times — lower production loss, higher OEE.
- Less start-up scrap and fewer complaints caused by colour streaks.
- Safe for the plasticising unit and hot runners when the correct grade is selected.
- Globally proven with processors and OEMs — Chem-Trend technical support.
A short list of example grades — we help you select the full range for your application. Contact us for TDS and samples.
| Grade | Type / features | Typical applications |
|---|---|---|
| Ultra Purge™ (uniwersalne / general-purpose) | Chemical-mechanical, for standard injection moulding | Routine colour and material changes on injection machines |
| Ultra Purge™ Hot Runner | Dedicated for hot-runner systems | Cleaning hot runners without disassembly — removing burnt polymer and colour |
| Ultra Purge™ Extrusion | For film, profile and pipe extrusion | Cleaning screw and die during colour or recipe change |
| Ultra Purge™ Blow Moulding | For blow moulding | Changeovers on bottle and technical container machines |
| Ultra Purge™ Food Contact | Compliant with food-contact requirements | Food packaging, kitchenware, HoReCa equipment |
| Ultra Purge™ Medical | For machines producing medical devices | Medical devices, pharmaceutical packaging |
Not sure which grade to choose?
Our engineers will help select the right material, run trials and prepare samples.
