--- title: "Extrusion FAQ: Can I Run Purge Through Melt Pumps & Static Mixers?" description: Purging Expert Chris Melchiore explains that purging compounds can run through both melt pumps and static mixers. image: https://www.asaclean.com/hubfs/Extruder.png --- [ Order Online ](https://asaclean.my.site.com/b2bstore) [ Free Sample ](https://offers.asaclean.com/free-sample) ## [ Asaclean Blog ](https://www.asaclean.com/blog) Browse by Topic " aerospace asaclean asaclean news Asaclean® benefits asahi kasei automotive Best Practices black specks blisters blow molding blown-film extrusion buyers caps and closures carbon contamination cast-film extrusion Chemical Purging Compounds clear applications Color Changeovers Company News compounding consumer products contamination Cost savings custom molders Customer Success Story decreasing scrap defects electronics Energy Efficiency EX Grade extruder cleaning Extrusion fillament glass filled Glitter Grade Selection HDPE High and Low Temp Changeovers hold a bubble Hot Runners Injection Molding Injection Molding Tips LDPE Lightweight automotive components LLDPE low residue maintenance Material Changeovers Mechanical Purging Compounds medical Melt Flow Index NPE 24 nylons on the fly packaging PCR PEEK Polypropylene Post Consumer Resins preventative preventative purging processing tips profile extrusion Purge Program purge programs Purge Training Purge Trial purging purging compounds purging concentrates purging procedures Purging Tips quality recycled resins residue issues scrap reduction Screw Pulls sheet extrusion shutdown and sealing start-up super engineering resins Sustainability Tech Day technical support training trials Troubleshooting Twin Screw twin screw extrusion two step purging U Grade ULTEM venting Viscosity webinars wire extrusion - [All](https://www.asaclean.com/blog/page/1) - More - [aerospace](https://www.asaclean.com/blog/topic/aerospace) - [asaclean](https://www.asaclean.com/blog/topic/asaclean) - [asaclean news](https://www.asaclean.com/blog/topic/asaclean-news) - [Asaclean® benefits](https://www.asaclean.com/blog/topic/asaclean-benefits) - [asahi kasei](https://www.asaclean.com/blog/topic/asahi-kasei) - [automotive](https://www.asaclean.com/blog/topic/automotive) - [Best Practices](https://www.asaclean.com/blog/topic/best-practices) - [black specks](https://www.asaclean.com/blog/topic/black-specks) - [blisters](https://www.asaclean.com/blog/topic/blisters) - [blow molding](https://www.asaclean.com/blog/topic/blow-molding) - [blown-film extrusion](https://www.asaclean.com/blog/topic/blown-film-extrusion) - [buyers](https://www.asaclean.com/blog/topic/buyers) - [caps and closures](https://www.asaclean.com/blog/topic/caps-and-closures) - [carbon contamination](https://www.asaclean.com/blog/topic/carbon-contamination) - [cast-film extrusion](https://www.asaclean.com/blog/topic/cast-film-extrusion) - [Chemical Purging Compounds](https://www.asaclean.com/blog/topic/chemical-purging-compounds) - [clear applications](https://www.asaclean.com/blog/topic/clear-applications) - [Color Changeovers](https://www.asaclean.com/blog/topic/color-changeovers) - [Company News](https://www.asaclean.com/blog/topic/company-news) - [compounding](https://www.asaclean.com/blog/topic/compounding) - [consumer products](https://www.asaclean.com/blog/topic/consumer-products) - [contamination](https://www.asaclean.com/blog/topic/contamination) - [Cost savings](https://www.asaclean.com/blog/topic/cost-savings) - [custom molders](https://www.asaclean.com/blog/topic/custom-molders) - [Customer Success Story](https://www.asaclean.com/blog/topic/customer-success-story) - [decreasing scrap](https://www.asaclean.com/blog/topic/decreasing-scrap) - [defects](https://www.asaclean.com/blog/topic/defects) - [electronics](https://www.asaclean.com/blog/topic/electronics) - [Energy Efficiency](https://www.asaclean.com/blog/topic/energy-efficiency) - [EX Grade](https://www.asaclean.com/blog/topic/ex-grade) - [extruder cleaning](https://www.asaclean.com/blog/topic/extruder-cleaning) - [Extrusion](https://www.asaclean.com/blog/topic/extrusion) - [fillament](https://www.asaclean.com/blog/topic/fillament) - [glass filled](https://www.asaclean.com/blog/topic/glass-filled) - [Glitter](https://www.asaclean.com/blog/topic/glitter) - [Grade Selection](https://www.asaclean.com/blog/topic/grade-selection) - [HDPE](https://www.asaclean.com/blog/topic/hdpe) - [High and Low Temp Changeovers](https://www.asaclean.com/blog/topic/high-and-low-temp-changeovers) - [hold a bubble](https://www.asaclean.com/blog/topic/hold-a-bubble) - [Hot Runners](https://www.asaclean.com/blog/topic/hot-runners) - [Injection Molding](https://www.asaclean.com/blog/topic/injection-molding) - [Injection Molding Tips](https://www.asaclean.com/blog/topic/injection-molding-tips) - [LDPE](https://www.asaclean.com/blog/topic/ldpe) - [Lightweight automotive components](https://www.asaclean.com/blog/topic/lightweight-automotive-components) - [LLDPE](https://www.asaclean.com/blog/topic/lldpe) - [low residue](https://www.asaclean.com/blog/topic/low-residue) - [maintenance](https://www.asaclean.com/blog/topic/maintenance) - [Material Changeovers](https://www.asaclean.com/blog/topic/material-changeovers) - [Mechanical Purging Compounds](https://www.asaclean.com/blog/topic/mechanical-purging-compounds) - [medical](https://www.asaclean.com/blog/topic/medical) - [Melt Flow Index](https://www.asaclean.com/blog/topic/melt-flow-index) - [NPE 24](https://www.asaclean.com/blog/topic/npe-24) - [nylons](https://www.asaclean.com/blog/topic/nylons) - [on the fly](https://www.asaclean.com/blog/topic/on-the-fly) - [packaging](https://www.asaclean.com/blog/topic/packaging) - [PCR](https://www.asaclean.com/blog/topic/pcr) - [PEEK](https://www.asaclean.com/blog/topic/peek) - [Polypropylene](https://www.asaclean.com/blog/topic/polypropylene) - [Post Consumer Resins](https://www.asaclean.com/blog/topic/post-consumer-resins) - [preventative](https://www.asaclean.com/blog/topic/preventative) - [preventative purging](https://www.asaclean.com/blog/topic/preventative-purging) - [processing tips](https://www.asaclean.com/blog/topic/processing-tips) - [profile extrusion](https://www.asaclean.com/blog/topic/profile-extrusion) - [Purge Program](https://www.asaclean.com/blog/topic/purge-program) - [purge programs](https://www.asaclean.com/blog/topic/purge-programs) - [Purge Training](https://www.asaclean.com/blog/topic/purge-training) - [Purge Trial](https://www.asaclean.com/blog/topic/purge-trial) - [purging](https://www.asaclean.com/blog/topic/purging) - [purging compounds](https://www.asaclean.com/blog/topic/purging-compounds) - [purging concentrates](https://www.asaclean.com/blog/topic/purging-concentrates) - [purging procedures](https://www.asaclean.com/blog/topic/purging-procedures) - [Purging Tips](https://www.asaclean.com/blog/topic/purging-tips) - [quality](https://www.asaclean.com/blog/topic/quality) - [recycled resins](https://www.asaclean.com/blog/topic/recycled-resins) - [residue issues](https://www.asaclean.com/blog/topic/residue-issues) - [scrap reduction](https://www.asaclean.com/blog/topic/scrap-reduction) - [Screw Pulls](https://www.asaclean.com/blog/topic/screw-pulls) - [sheet extrusion](https://www.asaclean.com/blog/topic/sheet-extrusion) - [shutdown and sealing](https://www.asaclean.com/blog/topic/shutdown-and-sealing) - [start-up](https://www.asaclean.com/blog/topic/start-up) - [super engineering resins](https://www.asaclean.com/blog/topic/super-engineering-resins) - [Sustainability](https://www.asaclean.com/blog/topic/sustainability) - [Tech Day](https://www.asaclean.com/blog/topic/tech-day) - [technical support](https://www.asaclean.com/blog/topic/technical-support) - [training](https://www.asaclean.com/blog/topic/training) - [trials](https://www.asaclean.com/blog/topic/trials) - [Troubleshooting](https://www.asaclean.com/blog/topic/troubleshooting) - [Twin Screw](https://www.asaclean.com/blog/topic/twin-screw) - [twin screw extrusion](https://www.asaclean.com/blog/topic/twin-screw-extrusion) - [two step purging](https://www.asaclean.com/blog/topic/two-step-purging) - [U Grade](https://www.asaclean.com/blog/topic/u-grade) - [ULTEM](https://www.asaclean.com/blog/topic/ultem) - [venting](https://www.asaclean.com/blog/topic/venting) - [Viscosity](https://www.asaclean.com/blog/topic/viscosity) - [webinars](https://www.asaclean.com/blog/topic/webinars) - [wire extrusion](https://www.asaclean.com/blog/topic/wire-extrusion) [ Subscribe ](https://www.asaclean.com/blog/extrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers#subscribe-modal) ### Suscribirse Troubleshooting / 3 min read / June 17, 2020 # Extrusion FAQ: Can I Run Purge Through Melt Pumps & Static Mixers? - [Facebook Share ](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fextrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers) - [Twitter Tweet ](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fextrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers&text=Extrusion+FAQ%3A+Can+I+Run+Purge+Through+Melt+Pumps+%26amp%3B+Static+Mixers%3F) - [LinkedIn Share ](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fextrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers&title=Extrusion%20FAQ%3A%20Can%20I%20Run%20Purge%20Through%20Melt%20Pumps%20%26amp%3B%20Static%20Mixers%3F&summary=Purging+Expert+Chris+Melchiore+explains+that+purging+compounds+can+run+through+both+melt+pumps+and+static+mixers.&source=) - [Pinterest Pin ](https://pinterest.com/pin/create/button/?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fextrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers) - [Email Email ](mailto:?subject=Extrusion%20FAQ%3A%20Can%20I%20Run%20Purge%20Through%20Melt%20Pumps%20%26amp%3B%20Static%20Mixers%3F&body=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fextrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers) ![Extrusion FAQ: Can I Run Purge Through Melt Pumps & Static Mixers?](https://www.asaclean.com/hs-fs/hubfs/Extruder.png?width=640&height=500&name=Extruder.png) [![Here is a twin screw extruder from our friends at Leistritz](https://www.asaclean.com/hs-fs/hubfs/Extruder.png?width=352&name=Extruder.png)](https://extruders.leistritz.com/en/extruders-systems.html) Many extrusion processors ask us whether or not you can run purging compounds through melt pumps and static mixers. Yes. You can run purging compounds through melt pumps and static mixers.  But some kinds of purging compounds are a better choice than others. Before we share our recommendations, let's look at what each component does. A **melt pump's** main purpose is to control output to the die. The melt pump compensates for things such as erratic temperature control, feed, interruptions, changes in the polymer mix and surging due to screw design. **Static mixers** help with homogenization, uniform viscosity/density, enhance mixing of colors and additives, and correct inconsistencies in the polymer melt prior to the die. Both components can be difficult to clean when performing color changes, material changes, or when you have carbon contamination. The trick is to be able to both clean these components effectively AND be able to displace the purge material quickly once the purge process is complete. While [mechanical ](https://www.asaclean.com/purging-products/mechanical-purging-compound/)and [chemical purging compounds](https://www.asaclean.com/purging-products/asaclean-chemical-purging-grades/) each have benefits, a high quality chemical purge like [Asaclean's NCR Grade](https://www.asaclean.com/purging-products/asaclean-chemical-purging-grades/ncr-grade-purging-compound-formerly-supernova-regular/) is best suited for this application. It has the advantage of a foaming action which will reach negative flow areas and dead spots within the components. Chemical purges also create steam which aids in the cleaning process, and are engineered to a viscosity compatible with that of the resin being removed. In the case of [Asaclean NCR](https://www.asaclean.com/purging-products/asaclean-chemical-purging-grades/ncf-grade-purging-compound-formerly-supernova-fd/) or [NCF Grades](https://www.asaclean.com/purging-products/asaclean-chemical-purging-grades/ncf-grade-purging-compound-formerly-supernova-fd/), particle size of the product in it’s melted state is sub-micron and WILL NOT have an adverse effect on either component.  These are some of the reasons why you can run Asaclean chemical purges through melt pumps and static mixers.      **Ready to reduce your ****production downtime**** to protect your profits? Learn more about how ****purging compounds**** and process efficiency work in tandem.** ![Chris Melchiore](https://www.asaclean.com/hs-fs/hubfs/Head_Shots/Chris%20Head%20shot.jpg?width=150&name=Chris%20Head%20shot.jpg) #### [ Chris Melchiore ](https://www.asaclean.com/blog/author/chris-melchiore) Chris Melchiore, serving as Business Development Manager at Asaclean Purging Compounds, excels with his specialized knowledge in Chemical Purging Compounds and Concentrate Grades. His industry journey, extending over two decades, includes a notable 16-year stint at NOVACHEM before joining Asaclean in 2015. Beyond his core role, Chris is actively involved in speaking engagements at webinars and tradeshows, showcasing his expertise and contributing to the broader industry dialogue. His insights and experience make him a pivotal figure in both business development and educational outreach for Asaclean. - [Share On LinkedIn ](https://www.linkedin.com/in/christopher-melchiore-19abb2a1/) ## Related Posts [![Purging Expert Chris Melchiore talks about the benefits of chemical purging compounds. ](https://www.asaclean.com/hs-fs/hubfs/Blog%20Header-Chemical%20Sweet%20Spot.jpg?width=450&height=250&name=Blog%20Header-Chemical%20Sweet%20Spot.jpg) Finding the Sweet Spot With a Chemical Purge Chemical... / 3 min read / January 05, 2022 ](https://www.asaclean.com/blog/finding-the-sweet-spot-with-a-chemical-purge) [![The Hidden Value of Soak Time for Chemical Purging Compounds](https://www.asaclean.com/hs-fs/hubfs/AI-Generated%20Media/Images/This%20image%20depicts%20soap%20suds%20in%20a%20bath.jpeg?width=450&height=250&name=This%20image%20depicts%20soap%20suds%20in%20a%20bath.jpeg) The Hidden Value of Soak Time for Chemical Purging Compounds Troubleshooting / 2 min read / June 27, 2019 ](https://www.asaclean.com/blog/the-hidden-value-of-soak-time-for-chemical-purging-compounds) ## Comments Get Started ## Ready to start improving your efficiency and increasing your profitability? - [Request a Consultation](https://www.asaclean.com/blog/extrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers#) - [Contact Sales](https://www.asaclean.com/blog/extrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers#) ![](https://www.asaclean.com/hubfs/assets/images/icons/icon-layers.svg) #### Free Sample Request a free sample of Asaclean® Purging Compounds for your plant and start saving today. [Request your free sample](https://offers.asaclean.com/en/free-sample?hsLang=en) ![](https://www.asaclean.com/hubfs/assets/images/icons/icon-calculator.svg) #### Cost Savings Calculator Use our free calculator to see how much you could be saving with Asaclean® Purging Compounds. [See your savings](https://www.asaclean.com/cost-savings-calculator) [ Back to Top ](https://www.asaclean.com/blog/extrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers#top) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Chris Melchiore", "url" : "https://www.asaclean.com/blog/author/chris-melchiore" }, "dateModified" : "2020-06-17T11:15:00.269Z", "datePublished" : "2020-06-17T11:15:00.000Z", "headline" : "Extrusion FAQ: Can I Run Purge Through Melt Pumps & Static Mixers?", "image" : [ "https://www.asaclean.com/hubfs/Extruder.png" ], "mainEntityOfPage" : { "@id" : "https://www.asaclean.com/blog/extrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.asaclean.com/hubfs/Asaclean%20Logo%20TM.jpg" }, "name" : "Asahi Kasei Plastics North America" } } ``` ```json { "@context" : "http://schema.org", "@type" : "Article", "articleBody" : "Many extrusion processors ask us whether or not you can run purging compounds through melt pumps and static mixers. Yes. You can run purging compounds through melt pumps and static mixers. But some kinds of purging compounds are a better choice than others. Before we share our recommendations, let's look at what each component does. A melt pump's main purpose is to control output to the die. The melt pump compensates for things such as erratic temperature control, feed, interruptions, changes in the polymer mix and surging due to screw design. Static mixers help with homogenization, uniform viscosity/density, enhance mixing of colors and additives, and correct inconsistencies in the polymer melt prior to the die.", "author" : { "@type" : "Person", "name" : "Chris Melchiore" }, "datePublished" : "June 17, 2020", "headline" : "Extrusion FAQ: Can I Run Purge Through Melt Pumps & Static Mixers?", "image" : "https://cdn2.hubspot.net/hubfs/468726/Extruder.png", "name" : "Extrusion FAQ: Can I Run Purge Through Melt Pumps & Static Mixers?", "url" : "https://www.asaclean.com/blog/extrusion-faq-can-i-run-purge-through-melt-pumps-static-mixers" } ```