--- title: Processing at 550F to 790F? Here's a Suggestion description: Purging Expert Chris Melchiore talks about the benefits of PX & PX2 Grades of Purging Compounds for super-engineering resins like PEEK & ULTEM. image: https://www.asaclean.com/hubfs/Blog%20Header%20Purge%20Defects.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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Here's a Suggestion - [Facebook Share ](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fprocessing-at-550f-to-790f-heres-a-suggestion) - [Twitter Tweet ](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fprocessing-at-550f-to-790f-heres-a-suggestion&text=Processing+at+550F+to+790F%3F+Here%27s+a+Suggestion) - [LinkedIn Share ](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fprocessing-at-550f-to-790f-heres-a-suggestion&title=Processing%20at%20550F%20to%20790F%3F%20Here%27s%20a%20Suggestion&summary=Purging+Expert+Chris+Melchiore+talks+about+the+benefits+of+PX+%26amp%3B+PX2+Grades+of+Purging+Compounds+for+super-engineering+resins+like+PEEK+%26amp%3B+ULTEM.&source=) - [Pinterest Pin ](https://pinterest.com/pin/create/button/?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fprocessing-at-550f-to-790f-heres-a-suggestion) - [Email Email ](mailto:?subject=Processing%20at%20550F%20to%20790F%3F%20Here%27s%20a%20Suggestion&body=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fprocessing-at-550f-to-790f-heres-a-suggestion) ![Processing at 550F to 790F? Here's a Suggestion](https://www.asaclean.com/hs-fs/hubfs/Blog%20Header%20Purge%20Defects.jpg?width=640&height=500&name=Blog%20Header%20Purge%20Defects.jpg) PEEK, Ultem, Polysulfone, Amodel, Fluoropolymers (to name a few), or any high-viscosity resin for that matter are extremely tough to transition. Whether it’s a [material change](https://www.asaclean.com/solutions/material-changeovers), [color change](https://www.asaclean.com/solutions/color-changeovers), or a shutdown, removing any of these resins effectively usually involves excess time, scrap, cost, and in some cases, a manual teardown and clean. We don't usually explicitly push products at this blog, but for super-engineering resins, we happen to offer the best-performing purging compounds available for high temps. Meet Asaclean [PF](https://www.asaclean.com/purging-products/pf-grade) and[ PX2](https://www.asaclean.com/purging-products/px2-grade). Both are unsurpassed in cleaning performance and can be used in injection molding, profile, tube, wire, compounding, and other types of extrusion. Both are mechanical purges that do not require a soak time. PX2 is glass-filled for high scrubbing abilities. (Not recommended for shutdowns.) PF does not contain glass and is an equally effective cleaner that can be used on shutdowns and in hot runners or hot manifolds. Recently I was contacted by an injection molder processing PEEK and Ultem. On Black to White color changes the screw had to be pulled and manually cleaned which took 2-3 hours on a small tonnage machine. Using PX2 they were able to perform the color change on the fly in 20 minutes without having to change heats or pull the screw. The same molder used a UHMWPE as a shutdown purge which did reasonably well but left some PEEK and Ultem behind causing startups to take hours due to contamination. Using PF on shutdown completely removed the production materials getting him up and running within minutes on startup saving time and scrap. **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 [![Minimize Scrap & Boost Efficiency with PEEK & Ultem: Asaclean's Solution](https://www.asaclean.com/hs-fs/hubfs/Super%20Blog%20Header.jpg?width=450&height=250&name=Super%20Blog%20Header.jpg) Minimize Scrap, Boost Efficiency with PEEK & Ultem:Asaclean's Solution SCRAP REDUCTION / 4 min read / March 27, 2023 ](https://www.asaclean.com/blog/minimize-scrap-boost-efficiency-with-peek-ultem-asacleans-solution) [![Asaclean Cheat Sheet: The Right Purging Compound for Most Situations](https://www.asaclean.com/hs-fs/hubfs/AI-Generated%20Media/Images/a%20street%20sign%20that%20says%20good%20choice%20pointing%20in%20one%20direction%20and%20bad%20choice%20pointing%20in%20the%20other%20direction.jpeg?width=450&height=250&name=a%20street%20sign%20that%20says%20good%20choice%20pointing%20in%20one%20direction%20and%20bad%20choice%20pointing%20in%20the%20other%20direction.jpeg) Asaclean Cheat Sheet: The Right Purging Compound for Most Situations Injection... / 5 min read / July 20, 2021 ](https://www.asaclean.com/blog/asaclean-cheat-sheet-the-right-purging-compound-for-most-situations) ## Comments Get Started ## Ready to start improving your efficiency and increasing your profitability? - [Request a Consultation](https://www.asaclean.com/blog/processing-at-550f-to-790f-heres-a-suggestion#) - [Contact Sales](https://www.asaclean.com/blog/processing-at-550f-to-790f-heres-a-suggestion#) ![](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/processing-at-550f-to-790f-heres-a-suggestion#top) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Chris Melchiore", "url" : "https://www.asaclean.com/blog/author/chris-melchiore" }, "dateModified" : "2022-11-15T20:04:16.281Z", "datePublished" : "2022-11-15T20:04:16.000Z", "headline" : "Processing at 550F to 790F? Here's a Suggestion", "image" : [ "https://www.asaclean.com/hubfs/Blog%20Header%20Purge%20Defects.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.asaclean.com/blog/processing-at-550f-to-790f-heres-a-suggestion", "@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" : "PEEK, Ultem, Polysulfone, Amodel, Fluoropolymers (to name a few), or any high-viscosity resin for that matter are extremely tough to transition. Whether it’s a material change, color change, or a shutdown, removing any of these resins effectively usually involves excess time, scrap, cost, and in some cases, a manual teardown and clean. We don't usually explicitly push products at this blog, but for super-engineering resins, we happen to offer the best-performing purging compounds available for high temps. Meet Asaclean PF and PX2. Both are unsurpassed in cleaning performance and can be used in injection molding, profile, tube, wire, compounding, and other types of extrusion. Both are mechanical purges that do not require a soak time. PX2 is glass-filled for high scrubbing abilities. (Not recommended for shutdowns.) PF does not contain glass and is an equally effective cleaner that can be used on shutdowns and in hot runners or hot manifolds.", "author" : { "@type" : "Person", "name" : "Chris Melchiore" }, "datePublished" : "November 15, 2022", "headline" : "Processing at 550F to 790F? Here's a Suggestion", "image" : "https://468726.fs1.hubspotusercontent-na1.net/hubfs/468726/Blog%20Header%20Purge%20Defects.jpg", "name" : "Processing at 550F to 790F? Here's a Suggestion", "url" : "https://www.asaclean.com/blog/processing-at-550f-to-790f-heres-a-suggestion" } ```