--- title: Why You Should Use Purging Compounds for Screw Pushes in Medical Extrusion Applications description: Asaclean Purging Expert Pete Studders explains why purging compounds are so helpful in screw pushes in medical extrusion applications. image: https://www.asaclean.com/hubfs/iStock-1215958676.jpg --- [ 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 - 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[Twitter Tweet ](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fwhy-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications&text=Why+You+Should+Use+Purging+Compounds+for+Screw+Pushes+in+Medical+Extrusion+Applications) - [LinkedIn Share ](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fwhy-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications&title=Why%20You%20Should%20Use%20Purging%20Compounds%20for%20Screw%20Pushes%20in%20Medical%20Extrusion%20Applications&summary=Asaclean+Purging+Expert+Pete+Studders+explains+why+purging+compounds+are+so+helpful+in+screw+pushes+in+medical+extrusion+applications.&source=) - [Pinterest Pin ](https://pinterest.com/pin/create/button/?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fwhy-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications) - [Email Email ](mailto:?subject=Why%20You%20Should%20Use%20Purging%20Compounds%20for%20Screw%20Pushes%20in%20Medical%20Extrusion%20Applications&body=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fwhy-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications) ![Why You Should Use Purging Compounds for Screw Pushes in Medical Extrusion Applications](https://www.asaclean.com/hs-fs/hubfs/iStock-1215958676.jpg?width=640&height=500&name=iStock-1215958676.jpg) [![iStock-1215958676](https://www.asaclean.com/hs-fs/hubfs/iStock-1215958676.jpg?width=300&name=iStock-1215958676.jpg)](https://www.cwbrabender.com/en/food/products/extruder/twin-screw-extruder/conical-twin-screw-extruder/) One of the routine challenges Medical Extrusion processors face is the need to overhaul screw and barrels between materials and runs. An important and required procedure to prevent contamination. In order to meet the stringent quality standards for the medical products being produced. [Pushing the screw](https://www.asaclean.com/purging-procedures/extrusion/overhauling-of-extruders/) allows for a manual cleaning and inspection prior to the next job or run. Doing so on its own can lead to increased downtime and labor effort required. Repeated use of wire brushes or wheels can eventually lead to isolated areas of wear and overall compromised integrity of any coatings. Using a purging compound prior to pushing the screw will minimize these costs and any potential for damage. Mechanical type purging compounds, such as [Asaclean EX Grade](https://www.asaclean.com/purging-products/mechanical-purging-compound/ex-grade-purging-compound/) contain specialty additives. That are engineered specifically to help with reducing the overall time and effort required. Proven effective repeatedly, and industry wide. Purging compounds will provide a “consistent, aggressive cleaning and removal of material and carbon deposits.” By letting the machines power do the work, you will soon realize the mechanical advantage. Greatly reducing the need for manual removal of residual contaminants with a brass brush or wheel. When the time comes to push the screw, rather than exerting force or muscling the screw out of the machine, an almost effortless removal is now possible. Making the process safer and with less overall labor effort. Minimizing machine downtime. [Asaclean EX](https://www.asaclean.com/purging-products/mechanical-purging-compound/ex-grade-purging-compound/) grade works for many types of resins found in medical applications. It has an operating temperature range of 390-680F (200-360C). When processing high temperature super engineering resins, Asaclean EX can be used in conjunction with [Asaclean PF](https://www.asaclean.com/purging-products/mechanical-purging-compound/pf-grade-purging-compound/) or [PX2](https://www.asaclean.com/purging-products/mechanical-purging-compound/px2-grade-purging-compound-2/) grades. By removing the super engineer resin first, then bridging the temperature and introducing EX to complete an efficient and effective screw push. If you would like additional information and some useful tips on maintaining machinery and best practice purging methods, [please contact your Asaclean Technical Sales Representative](https://offers.asaclean.com/free-consultation). **Learn about the importance of implementing proper purging procedures by downloading this free industry guide.** **** ** [![](https://no-cache.hubspot.com/cta/default/468726/interactive-161630774182.png) ](https://www.asaclean.com/hs/cta/wi/redirect?encryptedPayload=AVxigLKjlaGyxGfylqZRTm5KEcyeoxhvXcviPf0nBfWLhhX0HTz6lR699pZWbVgt3WS2%2FCR%2FviH4matez9o6nJCROooYWFF3hzMRxyh6GORWpnf%2FbSy9x6ev6zStvyuciuWdc9S0rRpnx2Xhpj%2FOgUo5IULVpbDItkEEQWFy3IC3MQ2Jmc%2BwQxuGjHnZOmLiqvQgrGgC8lA1iRGB7BGYEkxmFQSTOHP4Zcdx6V9hC2QYTIGM6fBrVYHlSMpv&webInteractiveContentId=161630774182&portalId=468726) ** ** ** ![Yoko Tanaka](https://www.asaclean.com/hs-fs/hubfs/Yoko%20Tanaka%20Headshot%203-25-16.jpg?width=150&name=Yoko%20Tanaka%20Headshot%203-25-16.jpg) #### [ Yoko Tanaka ](https://www.asaclean.com/blog/author/yoko-tanaka) Yoko Tanaka is the Marketing Manager at Asaclean. She has been helping molders and extruders learn about Asaclean purging and how to improve their processes for the past eight years. - [Share On LinkedIn ](https://www.linkedin.com/in/yokotanaka/) ## Related Posts [![Purging for Extrusion: Screw & Barrel vs. Downstream](https://www.asaclean.com/hs-fs/hubfs/Blog%20Header-extrusions%20screw%20vs%20downstream.jpg?width=450&height=250&name=Blog%20Header-extrusions%20screw%20vs%20downstream.jpg) Purging for Extrusion: Screw & Barrel vs. Downstream Chemical... / 4 min read / February 01, 2022 ](https://www.asaclean.com/blog/purging-for-extrusion-screw-barrel-vs.-downstream) [![Managing Your Purging Compound Inventory to Avoid a Sudden Shortage](https://www.asaclean.com/hs-fs/hubfs/Asaclean%20Checklist%20Image.jpg?width=450&height=250&name=Asaclean%20Checklist%20Image.jpg) Managing Your Purging Compound Inventory to Avoid a Sudden Shortage defects / 3 min read / April 26, 2019 ](https://www.asaclean.com/blog/managing-your-purging-compound-inventory-to-avoid-a-sudden-shortage) ## Comments Get Started ## Ready to start improving your efficiency and increasing your profitability? - [Request a Consultation](https://www.asaclean.com/blog/why-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications#) - [Contact Sales](https://www.asaclean.com/blog/why-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications#) ![](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. 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[See your savings](https://www.asaclean.com/cost-savings-calculator) [ Back to Top ](https://www.asaclean.com/blog/why-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications#top) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Yoko Tanaka", "url" : "https://www.asaclean.com/blog/author/yoko-tanaka" }, "dateModified" : "2021-06-22T12:24:00.608Z", "datePublished" : "2021-06-22T12:24:00.000Z", "headline" : "Why You Should Use Purging Compounds for Screw Pushes in Medical Extrusion Applications", "image" : [ "https://www.asaclean.com/hubfs/iStock-1215958676.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.asaclean.com/blog/why-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications", "@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" : "One of the routine challenges Medical Extrusion processors face is the need to overhaul screw and barrels between materials and runs. An important and required procedure to prevent contamination. In order to meet the stringent quality standards for the medical products being produced. Pushing the screw allows for a manual cleaning and inspection prior to the next job or run. Doing so on its own can lead to increased downtime and labor effort required. Repeated use of wire brushes or wheels can eventually lead to isolated areas of wear and overall compromised integrity of any coatings.", "author" : { "@type" : "Person", "name" : "Yoko Tanaka" }, "datePublished" : "June 22, 2021", "headline" : "Why You Should Use Purging Compounds for Screw Pushes in Medical Extrusion Applications", "image" : "https://f.hubspotusercontent20.net/hubfs/468726/iStock-1215958676.jpg", "name" : "Why You Should Use Purging Compounds for Screw Pushes in Medical Extrusion Applications", "url" : "https://www.asaclean.com/blog/why-you-should-use-purging-compounds-for-screw-pushes-in-medical-extrusion-applications" } ```