--- title: Why Do Plastics Processors Follow Poor Procedures When Processing Hygroscopic Resins? description: Hygroscopic resins require love and care. Eric highlights the importance of drying your resins before processing them for injection molding and beyond. image: https://www.asaclean.com/hubfs/plastic-2483784_640.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 - [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/-processing-hygroscopic-resins#subscribe-modal) ### Suscribirse Troubleshooting / 2 min read / November 16, 2017 # Why Do Plastics Processors Follow Poor Procedures When Processing Hygroscopic Resins? - [Facebook Share ](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.asaclean.com%2Fblog%2F-processing-hygroscopic-resins) - [Twitter Tweet ](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2F-processing-hygroscopic-resins&text=Why+Do+Plastics+Processors+Follow+Poor+Procedures+When+Processing+Hygroscopic+Resins%3F) - [LinkedIn Share ](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2F-processing-hygroscopic-resins&title=Why%20Do%20Plastics%20Processors%20Follow%20Poor%20Procedures%20When%20Processing%20Hygroscopic%20Resins%3F&summary=Hygroscopic+resins+require+love+and+care.+Eric+highlights+the+importance+of+drying+your+resins+before+processing+them+for+injection+molding+and+beyond.&source=) - [Pinterest Pin ](https://pinterest.com/pin/create/button/?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2F-processing-hygroscopic-resins) - [Email Email ](mailto:?subject=Why%20Do%20Plastics%20Processors%20Follow%20Poor%20Procedures%20When%20Processing%20Hygroscopic%20Resins%3F&body=https%3A%2F%2Fwww.asaclean.com%2Fblog%2F-processing-hygroscopic-resins) ![Why Do Plastics Processors Follow Poor Procedures When Processing Hygroscopic Resins?](https://www.asaclean.com/hs-fs/hubfs/plastic-2483784_640.jpg?width=640&height=500&name=plastic-2483784_640.jpg)  ![plastic-2483784_640.jpg](https://www.asaclean.com/hs-fs/hubfs/plastic-2483784_640.jpg?width=320&name=plastic-2483784_640.jpg) I have been in the plastics industry for over 38 years and it never ceases to amaze me that when I visit Injection Molding processors, some of these folks just do not get hygroscopic resins very well. Most folks realize that they need to dry hygroscopic materials such as Sabic’s Polycarbonate or RTP’s Nylon 6/6. However, there have been to many times where I have seen folks dry said materials in a dryer next to the machine and then take a five-gallon bucket and transfer the material manually from the bottom of the dyer to the top of an open hopper and maybe just maybe put a lid on that hopper. This procedure defeats the purpose of drying the material. These types of material start to absorb moisture immediately after leaving the dryer. This is true of some materials more than others. You may achieve a good part, but there is a good chance that on a molecular level, you do not have the best part for your customer and there is a high probability of part failure.   When management invests in the equipment to process these types of resins, you *must* have the dryer on top of the machine’s feed throat. Or at the very least have it with a “just in time” loader pulling material from the bottom of the dryer, directly to the feed throat. Do not let it sit long enough to absorb moisture. **Learn how the right purging compounds and procedures impact your process efficiency.** **** ** [![](https://no-cache.hubspot.com/cta/default/468726/interactive-161630774182.png) ](https://www.asaclean.com/hs/cta/wi/redirect?encryptedPayload=AVxigLKMRZFPPgcpaH33n5Wyi05dlKXOZzs%2BHz56QcRKARPT3Nfzi3zulCmtdLXMPVK2%2Btcr27Avfl0LF4C9iRVPhEZgficNZ8qnF3WtqxgW2j0gc%2F2hCDNxUWEZj5ncOH0oUnpRSEq4tBpp3ISV6bcFnH1kUWAHeyis%2F81STDUm7fQQytExQTHAwJBPIgUwunesgTTJ4kCoYimkXwyM9xhKoN9c%2Bj3%2F%2FMAdWWnuqJkWXaXXQ8pKc2OjystY&webInteractiveContentId=161630774182&portalId=468726) ** ** ** ![Eric Despotovich](https://www.asaclean.com/hs-fs/hubfs/Eric%20Despotovich%20LinkedIn%20Headshot%202%20-%20Copy.jpg?width=150&name=Eric%20Despotovich%20LinkedIn%20Headshot%202%20-%20Copy.jpg) #### [ Eric Despotovich ](https://www.asaclean.com/blog/author/eric-despotovich) Eric Despotovich, an esteemed Asaclean Purging Expert and Technical Sales Representative, brings over 40 years of processing experience to his role. With over 18 years of dedication to our company, Eric has become a cornerstone of our sales team, renowned for his commitment to client success. His extensive industry knowledge and genuine passion for helping clients make him a trusted advisor in optimizing their operations. Eric's approach is characterized by deeply understanding each client's unique challenges, ensuring tailored solutions that drive efficiency and profitability. - [Share On LinkedIn ](https://www.linkedin.com/in/eric-despotovich-5449682b) ## Related Posts [![Nylon Resin Hygroscopic Asaclean](https://www.asaclean.com/hs-fs/hubfs/Nylon%20Resin%20Hygroscopic%20Asaclean.jpg?width=450&height=250&name=Nylon%20Resin%20Hygroscopic%20Asaclean.jpg) 5 Tips to Help Process Dry Hygroscopic Resins Troubleshooting / 2 min read / July 03, 2018 ](https://www.asaclean.com/blog/5-tips-to-help-process-dry-hygroscopic-resins) [![Clear plastic molded parts showing transparency and defects like streaking and haze caused by contamination during processing.](https://www.asaclean.com/hs-fs/hubfs/AI-Generated%20Media/Images/Transparent%20Plastic%20Injection%20Molded%20Parts.png?width=450&height=250&name=Transparent%20Plastic%20Injection%20Molded%20Parts.png) Why Clear Resins Expose Every Problem in Your Process (and How to Fix It) Purging Tips / 6 min read / April 07, 2026 ](https://www.asaclean.com/blog/why-clear-resins-expose-every-problem-in-your-process-and-how-to-fix-it) ## Comments Get Started ## Ready to start improving your efficiency and increasing your profitability? - [Request a Consultation](https://www.asaclean.com/blog/-processing-hygroscopic-resins#) - [Contact Sales](https://www.asaclean.com/blog/-processing-hygroscopic-resins#) ![](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-hygroscopic-resins#top) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Eric Despotovich", "url" : "https://www.asaclean.com/blog/author/eric-despotovich" }, "datePublished" : "2017-11-16T13:31:00.000Z", "headline" : "Why Do Plastics Processors Follow Poor Procedures When Processing Hygroscopic Resins?", "image" : [ "https://www.asaclean.com/hubfs/plastic-2483784_640.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.asaclean.com/blog/-processing-hygroscopic-resins", "@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" : "I have been in the plastics industry for over 38 years and it never ceases to amaze me that when I visit Injection Molding processors, some of these folks just do not get hygroscopic resins very well. Most folks realize that they need to dry hygroscopic materials such as Sabic’s Polycarbonate or RTP’s Nylon 6/6. However, there have been to many times where I have seen folks dry said materials in a dryer next to the machine and then take a five-gallon bucket and transfer the material manually from the bottom of the dyer to the top of an open hopper and maybe just maybe put a lid on that hopper.", "author" : { "@type" : "Person", "name" : "Eric Despotovich" }, "datePublished" : "November 16, 2017", "headline" : "Why Do Plastics Processors Follow Poor Procedures When Processing Hygroscopic Resins?", "image" : "https://cdn2.hubspot.net/hubfs/468726/plastic-2483784_640.jpg", "name" : "Why Do Plastics Processors Follow Poor Procedures When Processing Hygroscopic Resins?", "url" : "https://www.asaclean.com/blog/-processing-hygroscopic-resins" } ```