--- title: Faster Profile Extrusion Color Changes with Chemical Purging description: Asaclean Purging Expert Jerry Weddell discusses how chemical purges and purge concentrates can assist with color changes in profile extrusion. image: https://www.asaclean.com/hubfs/Process%20%26%20Industry%20Header%20Photo.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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Most profile extrusion plants deal with these scenarios on daily basis. These issues are very costly and when left unchecked can drastically affect your profits. Recently, I was working with a large profile extruder in the Midwest. They were struggling changing colors and looking for a solution. Their biggest issue was changing from blue to white. This color change is extremely difficult. A dark blue line will appear on the white part for hours. Current purge is PMMA. It takes them 2.5 hours and 300 -400lbs PMMA to purge out the blue. Additionally, after running white for an hour or so, spots of blue would reappear. We reviewed the processing parameters. The feed throat was set to 375F ramping up to 395F at the nozzle. Also, there is 3 zone die set at 390F. I sent 50lbs NCR Grade. At the start of the purge process the blue masterbatch was shut off and ran empty. The hopper and loader system were cleaned thoroughly. The 3 zone die temperature was raised to 450F. Pre-flushed the blue out with 1 system capacity of HDPE (50lbs) and then added the 50lbs NCR grade. Once the NCR was flowing out the die – extruders rpms were set low as possible and contained. The NCR soaked for 15 mins. After 15 minutes all temperatures were set back to process point, loading system cleaned again, and white masterbatch was added. Production was started up white. White color was approved after 15 minutes from start up. Total purge time was 1 hour, 50lbs HDPE, and 50lbs of NCR grade. Huge savings compared to 3 hours, 50lbs HDPE, and 300-400lbs PMMA! Stop doing it “the way we always done it” and investigate Asaclean’s new purge technology. Chemical purges and concentrates are game changers in all extrusion applications. **Want to save *a little more money?  *Try purging with Asaclean today by requesting your free sample below.** ![Jerry Weddell](https://www.asaclean.com/hs-fs/hubfs/1713568728231.jpg?width=150&name=1713568728231.jpg) #### [ Jerry Weddell ](https://www.asaclean.com/blog/author/jerry-weddell) With over 30 years in the field, Jerry Weddell is a Technical Sales Representative with a wealth of knowledge in mold-making and purging compounds. While his expertise spans injection molding, extrusion, and blow molding, he is particularly distinguished in injection molding. Jerry's profound understanding of these processes enables him to offer targeted, practical solutions, especially in the nuanced aspects of injection molding. His commitment to providing exceptional guidance and support to clients has made him a respected and trusted figure in the industry. - [Share On LinkedIn ](https://www.linkedin.com/in/jerry-weddell-b0747538) ## Related Posts [![Don't Forget to Clean the Check Ring](https://www.asaclean.com/hs-fs/hubfs/Check%20Ring%20Blog%20Header.jpg?width=450&height=250&name=Check%20Ring%20Blog%20Header.jpg) Don't Forget to Clean the Check Ring Troubleshooting / 2 min read / June 03, 2019 ](https://www.asaclean.com/blog/dont-forget-to-clean-the-check-ring) [![Are You Using More Purge Compound Than You Did Before?](https://www.asaclean.com/hs-fs/hubfs/AI-Generated%20Media/Images/this%20image%20depicts%20a%20scale%20with%20one%20side%20saying%20less%20and%20the%20other%20side%20saying%20more-2.jpeg?width=450&height=250&name=this%20image%20depicts%20a%20scale%20with%20one%20side%20saying%20less%20and%20the%20other%20side%20saying%20more-2.jpeg) Are You Using More Purge Compound Than You Did Before? Injection... / 3 min read / November 01, 2018 ](https://www.asaclean.com/blog/are-you-using-more-purge-compound-than-you-did-before) ## Comments Get Started ## Ready to start improving your efficiency and increasing your profitability? - [Request a Consultation](https://www.asaclean.com/blog/easier-profile-extrusion-color-changes-with-chemical-purges-concentrates#) - [Contact Sales](https://www.asaclean.com/blog/easier-profile-extrusion-color-changes-with-chemical-purges-concentrates#) ![](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/easier-profile-extrusion-color-changes-with-chemical-purges-concentrates#top) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Jerry Weddell", "url" : "https://www.asaclean.com/blog/author/jerry-weddell" }, "dateModified" : "2025-03-18T17:58:37.221Z", "datePublished" : "2021-10-21T18:34:07.000Z", "headline" : "Faster Profile Extrusion Color Changes with Chemical Purging", "image" : [ "https://www.asaclean.com/hubfs/Process%20&%20Industry%20Header%20Photo.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.asaclean.com/blog/easier-profile-extrusion-color-changes-with-chemical-purges-concentrates", "@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" : "Are you having issues changing colors, losing massive amounts of scrap, or hours of equipment sitting idle while being manually cleaned? Most profile extrusion plants deal with these scenarios on daily basis. These issues are very costly and when left unchecked can drastically affect your profits. Recently, I was working with a large profile extruder in the Midwest. They were struggling changing colors and looking for a solution. Their biggest issue was changing from blue to white. This color change is extremely difficult. A dark blue line will appear on the white part for hours. Current purge is PMMA. It takes them 2.5 hours and 300 -400lbs PMMA to purge out the blue. Additionally, after running white for an hour or so, spots of blue would reappear. We reviewed the processing parameters. The feed throat was set to 375F ramping up to 395F at the nozzle. Also, there is 3 zone die set at 390F. I sent 50lbs NCR Grade.", "author" : { "@type" : "Person", "name" : "Jerry Weddell" }, "datePublished" : "October 21, 2021", "headline" : "Faster Profile Extrusion Color Changes with Chemical Purging", "image" : "https://f.hubspotusercontent20.net/hubfs/468726/Process%20&%20Industry%20Header%20Photo.jpg", "name" : "Faster Profile Extrusion Color Changes with Chemical Purging", "url" : "https://www.asaclean.com/blog/easier-profile-extrusion-color-changes-with-chemical-purges-concentrates" } ```