{"id":1526,"date":"2024-08-09T17:14:18","date_gmt":"2024-08-09T17:14:18","guid":{"rendered":"https:\/\/knowledge-center.novatec.com\/?page_id=1526"},"modified":"2026-03-18T13:56:21","modified_gmt":"2026-03-18T13:56:21","slug":"glossary-plastics-performance-issues","status":"publish","type":"page","link":"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-drying-basics\/glossary-plastics-performance-issues\/","title":{"rendered":"Glossary: Plastics Performance Issues"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1526\" class=\"elementor elementor-1526\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1aad4162 e-con-full e-flex e-con e-parent\" data-id=\"1aad4162\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-250b81e8 e-con-full e-flex e-con e-child\" data-id=\"250b81e8\" data-element_type=\"container\">\n\t\t\t\t<div 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class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1566\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-drying-basics\/\" class = \"hfe-sub-menu-item\">Resin Drying Basics<\/a><\/li>\n\t<li id=\"menu-item-3039\" class=\"menu-item menu-item-type-custom menu-item-object-custom hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/wp-content\/uploads\/2023\/04\/Best-Practices-for-Effective-Polymer-Drying.pdf\" class = \"hfe-sub-menu-item\">Best Practices for Effective Polymer Drying<\/a><\/li>\n\t<li id=\"menu-item-3622\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-drying-basics\/overdrying-nylon-the-hidden-danger-sabotaging-your-parts\/\" class = \"hfe-sub-menu-item\">Overdrying Nylon: The Hidden Danger Sabotaging Your Parts<\/a><\/li>\n\t<li id=\"menu-item-3566\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-drying-basics\/the-hidden-dangers-of-desiccant-dust-in-resin-processing\/\" class = \"hfe-sub-menu-item\">The Hidden Dangers of Desiccant Dust in Resin Processing<\/a><\/li>\n\t<li id=\"menu-item-1567\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-drying-basics\/glossary-plastics-performance-issues\/\" class = \"hfe-sub-menu-item\">Glossary: Plastics Performance Issues<\/a><\/li>\n\t<li id=\"menu-item-683\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-drying-basics\/modern-vs-old\/\" class = \"hfe-sub-menu-item\">Cost: Old vs. Modern Drying Technology<\/a><\/li>\n<\/ul>\n<\/li>\n<li id=\"menu-item-3046\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children parent hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"#\" class = \"hfe-menu-item\">Resin Types<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1568\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-types\/\" class = \"hfe-sub-menu-item\">Resin Types &#038; Their Impact on Drying<\/a><\/li>\n<\/ul>\n<\/li>\n<li id=\"menu-item-3047\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children parent hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"#\" class = \"hfe-menu-item\">Types of Resin Dryers<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-684\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/\" class = \"hfe-sub-menu-item\">A Complete Guide to Resin Drying Technologies<\/a><\/li>\n\t<li id=\"menu-item-3475\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/the-ultimate-guide-to-choosing-the-right-desiccant-resin-dryer\/\" class = \"hfe-sub-menu-item\">The Ultimate Guide to Choosing the Right Desiccant Resin Dryer<\/a><\/li>\n\t<li id=\"menu-item-4656\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/the-ultimate-guide-to-compressed-air-resin-dryers-for-plastics-processors\/\" class = \"hfe-sub-menu-item\">The Ultimate Guide to Compressed Air Resin Dryers for Plastics Processors<\/a><\/li>\n\t<li id=\"menu-item-1569\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/silo-dehumidification-hot-air-dryers\/\" class = \"hfe-sub-menu-item\">Silo Dehumidification\/Hot Air Dryers<\/a><\/li>\n\t<li id=\"menu-item-2755\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/compressed-air-resin-dryers\/\" class = \"hfe-sub-menu-item\">Compressed Air Dryers<\/a><\/li>\n\t<li id=\"menu-item-1573\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/membrane-dryers\/\" class = \"hfe-sub-menu-item\">Membrane Dryers<\/a><\/li>\n\t<li id=\"menu-item-2749\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/resin-vacuum-dryers\/\" class = \"hfe-sub-menu-item\">Vacuum Dryers<\/a><\/li>\n\t<li id=\"menu-item-2754\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/dual-bed-dryers\/\" class = \"hfe-sub-menu-item\">Dual Bed Dryers<\/a><\/li>\n\t<li id=\"menu-item-2752\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/desiccant-wheel-rotor-dryers\/\" class = \"hfe-sub-menu-item\">Desiccant Wheel\/Rotor Dryers<\/a><\/li>\n\t<li id=\"menu-item-2751\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/resin-dryer-technologies-crystallizers-for-reprocessing-pet\/\" class = \"hfe-sub-menu-item\">Crystallizers<\/a><\/li>\n\t<li id=\"menu-item-2753\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/drying-hoppers-for-plastic-resins\/\" class = \"hfe-sub-menu-item\">Drying Hoppers for Plastic Resins<\/a><\/li>\n\t<li id=\"menu-item-1574\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/gas-fired-process-heaters-for-resins\/\" class = \"hfe-sub-menu-item\">Gas-Fired Process Heaters<\/a><\/li>\n\t<li id=\"menu-item-1571\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/portable-resin-drying-systems\/\" class = \"hfe-sub-menu-item\">Portable Resin Drying Systems<\/a><\/li>\n\t<li id=\"menu-item-2750\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/central-resin-dryers\/\" class = \"hfe-sub-menu-item\">Central Resin Dryers<\/a><\/li>\n\t<li id=\"menu-item-1572\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-technologies\/pet-energy-saving-drying-systems\/\" class = \"hfe-sub-menu-item\">PET Energy-Saving Drying Systems<\/a><\/li>\n<\/ul>\n<\/li>\n<li id=\"menu-item-3057\" class=\"menu-item menu-item-type-post_type menu-item-object-page parent hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/press-side-vs-central-plastic-resin-drying\/\" class = \"hfe-menu-item\">Press-Side vs. Central Plastic Resin Drying<\/a><\/li>\n<li id=\"menu-item-3339\" class=\"menu-item menu-item-type-post_type menu-item-object-page parent hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/choosing-the-right-resin-moisture-analyzer\/\" class = \"hfe-menu-item\">Choosing the Right Resin Moisture Analyzer<\/a><\/li>\n<li id=\"menu-item-3338\" class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children parent hfe-has-submenu hfe-creative-menu\"><div class=\"hfe-has-submenu-container\" tabindex=\"0\" role=\"button\" aria-haspopup=\"true\" aria-expanded=\"false\"><a aria-expanded=\"false\" href=\"#\" class = \"hfe-menu-item\">Resin Dryer Maintenance and Trouble Shooting<span class='hfe-menu-toggle sub-arrow hfe-menu-child-0'><i class='fa'><\/i><\/span><\/a><\/div>\n<ul class=\"sub-menu\">\n\t<li id=\"menu-item-1575\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-maintenance\/\" class = \"hfe-sub-menu-item\">Resin Dryer Maintenance<\/a><\/li>\n\t<li id=\"menu-item-3110\" class=\"menu-item menu-item-type-post_type menu-item-object-page hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/resin-dryer-maintenance\/trouble-shooting-guide-for-wheel-dryers\/\" class = \"hfe-sub-menu-item\">Trouble Shooting Guide for Wheel Dryers<\/a><\/li>\n<\/ul>\n<\/li>\n<li id=\"menu-item-3054\" class=\"menu-item menu-item-type-custom menu-item-object-custom parent hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/novatec-markhaynie-summerweather-whitepaper-final-1.pdf\" class = \"hfe-menu-item\">How to Optimize Resin Drying in Humid Weather<\/a><\/li>\n<li id=\"menu-item-3056\" class=\"menu-item menu-item-type-custom menu-item-object-custom parent hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Energy-Saving-Resin-Drying-Installations.pdf\" class = \"hfe-menu-item\">Energy Saving Tips for Resin Dryers<\/a><\/li>\n<li id=\"menu-item-1576\" class=\"menu-item menu-item-type-post_type menu-item-object-page parent hfe-creative-menu\"><a href=\"https:\/\/www.novatec.com\/knowledge-center\/plastic-drying-knowledge-center\/faqs\/\" class = \"hfe-menu-item\">Frequently Asked Questions<\/a><\/li>\n<\/ul> \n\t\t\t\t<\/nav>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4bb8cccf e-con-full e-flex e-con e-child\" data-id=\"4bb8cccf\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7cdeb05b elementor-widget elementor-widget-text-editor\" data-id=\"7cdeb05b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"\"><h1 class=\"text-case-reset font-title font-2xl p-t-2 mt-3 page-title\">Glossary: Plastics Performance Issues<\/h1><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-36ce93e e-con-full e-flex e-con e-child\" data-id=\"36ce93e\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-f5abc3b e-con-full e-flex e-con e-child\" data-id=\"f5abc3b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d9da6e4 elementor-widget elementor-widget-text-editor\" data-id=\"d9da6e4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Visible Defects\u00a0<\/strong>\u2013\u00a0A Glossary of Potential Visible Defects in Plastics Parts Processing<\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f3107e0 elementor-widget elementor-widget-image\" data-id=\"f3107e0\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"341\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/common-visible-resin-defects-1024x341.jpg\" class=\"attachment-large size-large wp-image-1527\" alt=\"\" srcset=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/common-visible-resin-defects-1024x341.jpg 1024w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/common-visible-resin-defects-300x100.jpg 300w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/common-visible-resin-defects-768x256.jpg 768w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/common-visible-resin-defects.jpg 1125w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-93f9723 elementor-widget elementor-widget-text-editor\" data-id=\"93f9723\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"centered g-img\" data-track-changes-ignore=\"ignore\"><ul><li><strong>Blister<\/strong><picture data-cmp-info=\"10\">: A raised area on the surface of a plastic part caused by the pressure of gases inside the part expanding, but not breaking the surface.<\/picture><\/li><\/ul><\/div><ul><li><strong>Bleed<\/strong>: A plastic part gives up color when it comes in contact with water or a solvent. Created by an undesired movement of certain materials within the plastic (e.g. plasticizers in vinyl). The color bleeds to the surface of the finished part or into an adjacent part\u2019s incompletely hardened surface.<\/li><li><strong>Bloom<\/strong>: A visible exudation or efflorescence on the surface of a plastic part.<\/li><li><strong>Chalking<\/strong>: A powdery residue on the surface of a plastic part often resulting from degradation of the plastic material.<\/li><li><strong>Clarity<\/strong>: The level of clearness in plastic parts.<\/li><li><strong>Decomposition<\/strong>: A part decays or decomposes, typically at an undesirable rate.<\/li><li><strong>Discoloration<\/strong>: Any change from the original color, often caused by overheating, light exposure, irradiation, or chemical attack.<\/li><li><strong>Gloss<\/strong>: The degree of shine or luster of the surface of a material.<\/li><li><strong>Splay<\/strong>: A defect in the surface of a molded part that is usually small in size, shiny, and may have the appearance of lightly tinted or silver streaks.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-65cf4dc elementor-widget elementor-widget-image\" data-id=\"65cf4dc\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"341\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/yellowed-plastic-process-1024x341.jpg\" class=\"attachment-large size-large wp-image-1528\" alt=\"\" srcset=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/yellowed-plastic-process-1024x341.jpg 1024w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/yellowed-plastic-process-300x100.jpg 300w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/yellowed-plastic-process-768x256.jpg 768w, https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/yellowed-plastic-process.jpg 1125w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-373db6a elementor-widget elementor-widget-text-editor\" data-id=\"373db6a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"centered g-img\" data-track-changes-ignore=\"ignore\"><h3><strong>Performance Deficiencies<\/strong>\u00a0 \u2013\u00a0A Glossary of Potential Part Failures in Plastics Processing<\/h3><\/div><p><em>Cosmetic defects often forewarn a part\u2019s ability to do its job as it was designed. Improper drying can not only ruin a part\u2019s looks but make it fail in use.<\/em><\/p><ul><li><strong>Aging<\/strong>: The change of a plastic part or piece with time under defined environmental conditions, leading to the continuation or deterioration of properties.<\/li><li><strong>Crazing<\/strong>: Fine cracks that may extend in a network on or under the surface or through a layer of a plastic part.<\/li><li><strong>Creep<\/strong>: The dimensional change with time of a plastic part under load, following the initial instantaneous elastic deformation. Creep at room temperature is sometimes called Cold Flow.<\/li><li><strong>Ductility<\/strong>: The extent to which a solid plastic part can be drawn into a thinner cross-section.<\/li><li><strong>Environmental Stress Cracking<\/strong>: The susceptibility of a thermoplastic article to crack or suffer craze formation under the influence of certain chemicals and stress.<\/li><li><strong>Hardness<\/strong>: The resistance of a plastic article to compression and indentation. Among the most common methods of testing this property is the Brinell hardness test procedure.<\/li><li><strong>Hydrolysis<\/strong>: Chemical decomposition of a plastic article through the addition of water.<\/li><li><strong>Impact Strength<\/strong>: The ability of a part to withstand shock loading or the work done in fracturing, under shock loading, a specified test specimen in a specified manner.<\/li><li><strong>Intrinsic Viscosity<\/strong>: The intrinsic viscosity of a polymer is the limiting value of infinite dilution of the ratio at the specific viscosity of the polymer solution to its concentrate on moles per liter.<\/li><li><strong>Melt Flow<\/strong>: The flow rate obtained from the extrusion of a molten resin through a die of specified length and diameter under prescribed conditions of time, temperature and load as set forth in ASTM D1238.<\/li><li><strong>Moisture Vapor Transmission<\/strong>: The rate at which water vapor permeates through a plastic film or wall at a specified temperature and relative humidity.<\/li><li><strong>Notch Sensitivity<\/strong>: The extent to which the sensitivity to fracture of a part is increased by the presence of a surface in homogeneity such as a face notch, a sudden change in section, a crack, or a scratch. Low-notch sensitivity is usually associated with ductile materials, and high-notch sensitivity with brittle materials. This is an important element in complex part design.<\/li><li><strong>Oxidation<\/strong>: The change occurring in a part by the addition of oxygen or the reduction of hydrogen.<\/li><li><strong>Permeability<\/strong>: The passage or diffusion of a gas, vapor, liquid, or solid through a barrier without physically or chemically affecting it and the rate of such passage.<\/li><li><strong>Resiliency<\/strong>: Ability to quickly regain an original shape after being strained or distorted.<\/li><li><strong>Voids<\/strong>: In a solid plastic, an unfilled space of such size that it scatters radiant energy such as light or more importantly, a cavity unintentionally formed in a molding.<\/li><\/ul><h3>Tolerance\/Size Issues in Plastics Part Processing<\/h3><p><em>Poor drying can often compromise a part\u2019s physical characteristics, typically defeating its ultimate benefit in final use or application.<\/em><\/p><ul><li><strong>Concentricity<\/strong>: For a round container part for instance, the shape in which various cross sections have a common center.<\/li><li><strong>Tolerance<\/strong>: A specified allowance for deviations in weight, dimensions measuring, etc.<\/li><li><strong>Warpage<\/strong>: Dimensional distortion in a plastic object after molding, particularly common and critical on flat surfaces.<\/li><li><strong>Wrinkle<\/strong>: An imperfection in reinforced plastics that has the appearance of a wave molded into one or more plies of fabric or other reinforcing material.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-385fdb41 e-con-full e-flex e-con e-child\" data-id=\"385fdb41\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-322b9e21 elementor-widget elementor-widget-shortcode\" data-id=\"322b9e21\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"655\" class=\"elementor elementor-655\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-66df30ab e-flex e-con-boxed e-con e-parent\" data-id=\"66df30ab\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-488ac7ed e-con-full e-flex e-con e-child\" data-id=\"488ac7ed\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5e1da28a elementor-widget elementor-widget-heading\" data-id=\"5e1da28a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Ask the Expert<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6254b49f elementor-widget elementor-widget-image\" data-id=\"6254b49f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"260\" height=\"172\" src=\"https:\/\/www.novatec.com\/knowledge-center\/wp-content\/uploads\/2024\/08\/Mark-Haynie_Novatec.1678813405148.webp\" class=\"attachment-full size-full wp-image-364\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Mark Haynie Vice President, Moisture &amp; Drying<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31a085ad elementor-widget elementor-widget-heading\" data-id=\"31a085ad\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Submit A Question<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1dbd06e3 elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"1dbd06e3\" data-element_type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"Ask the Expert Drying\" aria-label=\"Ask the Expert Drying\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"655\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"1dbd06e3\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"Plastic Knowledge Center\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-above\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100 elementor-field-required elementor-mark-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tName\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Name\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required elementor-mark-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100 elementor-field-required elementor-mark-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Message\" required=\"required\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-hidden elementor-field-group elementor-column elementor-field-group-user_info elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"hidden\" name=\"form_fields[user_info]\" id=\"form-field-user_info\" class=\"elementor-field elementor-size-sm  elementor-field-textual\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-hidden elementor-field-group elementor-column elementor-field-group-utm_source elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"hidden\" name=\"form_fields[utm_source]\" id=\"form-field-utm_source\" class=\"elementor-field elementor-size-sm  elementor-field-textual\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-hidden elementor-field-group elementor-column elementor-field-group-utm_medium elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"hidden\" name=\"form_fields[utm_medium]\" id=\"form-field-utm_medium\" class=\"elementor-field elementor-size-sm  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