{"id":1140,"date":"2026-01-14T11:26:21","date_gmt":"2026-01-14T03:26:21","guid":{"rendered":"https:\/\/jinoplastics.com\/raw-material-pvcrigid-injection-molding\/"},"modified":"2026-08-27T13:48:09","modified_gmt":"2026-08-27T05:48:09","slug":"raw-material-pvcrigid-injection-molding","status":"publish","type":"post","link":"https:\/\/jinoplastics.com\/nb\/raw-material-pvcrigid-injection-molding\/","title":{"rendered":"R\u00e5material PVC rigid injeksjonsformingsforbindelsesleverand\u00f8rguide"},"content":{"rendered":"<h2>Understanding Rigid PVC as an Injection Molding Raw Material<\/h2>\n<p>&nbsp;<\/p>\n<h3>Composition Basics: Resin and Additives<\/h3>\n<p>Rigid PVC is rarely processed as a pure polymer. To ensure the material survives the thermal stress of molding and performs in the field, we rely on a precise formulation:<\/p>\n<ul>\n<li><strong>Base Resin:<\/strong> The core polyvinyl chloride polymer that provides the structural backbone.<\/li>\n<li><strong>PVC Heat Stabilizers:<\/strong> Critical additives\u2014often tin or calcium-zinc based\u2014that prevent the compound from degrading or burning inside the barrel.<\/li>\n<li><strong>Impact Modifiers:<\/strong> These are blended in to counter the inherent brittleness of the resin, ensuring the final part maintains high impact strength.<\/li>\n<\/ul>\n<h3>Rigid (uPVC) vs. Flexible PVC<\/h3>\n<p>The distinction between a <strong>rigid PVC compound<\/strong> (often referred to as uPVC) and flexible variants lies entirely in the plasticizers. In <strong>unplasticized PVC injection molding<\/strong>, we eliminate plasticizers to create a material that offers superior structural integrity and chemical resistance. Unlike flexible PVC, which flows easily, rigid grades demand tighter shear control and specific screw designs to maintain dimensional stability without degrading.<\/p>\n<h3>Material Forms for Production<\/h3>\n<p>We source and handle raw materials in formats optimized for consistency and feed efficiency:<\/p>\n<ul>\n<li><strong>Pre-compounded Granules:<\/strong> The industry standard for quality. <strong>Rigid PVC granules<\/strong> arrive fully mixed with all stabilizers and colorants, ensuring uniform properties from the first shot to the last.<\/li>\n<li><strong>PVC Pellets:<\/strong> We prioritize high-quality <strong>PVC pellets for injection molding<\/strong> to facilitate automated vacuum feeding and consistent melt rates.<\/li>\n<li><strong>Dry Blends:<\/strong> While powder forms exist for custom compounding, we typically utilize pelletized stock to minimize dust and maximize machine uptime.<\/li>\n<\/ul>\n<h2>Essential Properties of Rigid PVC Compounds<\/h2>\n<p>When we select a <strong>rigid PVC compound<\/strong> for manufacturing, we aren&#8217;t just looking at cost; we are looking for a material that balances structural integrity with environmental resistance. Unlike flexible variants, unplasticized PVC (uPVC) offers a unique set of <strong>rigid PVC material properties<\/strong> that make it a staple in industrial and construction applications. Understanding these specs is vital for <a href=\"https:\/\/jinoplastics.com\/identify-injection-moulding\/\">identifying the right injection molding approach<\/a> for your specific parts.<\/p>\n<h3>Mechanical Strength and Stiffness<\/h3>\n<p>Rigid PVC is known for its impressive hardness and mechanical durability. It acts as a structural engineering plastic, capable of replacing metal in many fittings and housings.<\/p>\n<ul>\n<li><strong>Tensile Strength:<\/strong> Typically ranges from <strong>6,000 to 7,500 PSI<\/strong>, providing robust resistance to pulling forces.<\/li>\n<li><strong>Stiffness (Flexural Modulus):<\/strong> High rigidity ensures parts maintain their shape under load.<\/li>\n<li><strong>Specific Gravity:<\/strong> Generally sits between <strong>1.35 and 1.45<\/strong>, making it denser than polyolefins like PP or PE, which contributes to a solid, high-quality feel in the final part.<\/li>\n<\/ul>\n<h3>Thermal Stability and Melt Behavior<\/h3>\n<p>Processing <strong>rigid PVC granules<\/strong> requires precise thermal control. This material has a relatively narrow processing window compared to other thermoplastics.<\/p>\n<ul>\n<li><strong>Melt Range:<\/strong> We have to maintain strict temperature controls. If the heat is too low, the material won&#8217;t fuse; too high, and it degrades rapidly.<\/li>\n<li><strong>Degradation Risks:<\/strong> <strong>Thermal stability PVC molding<\/strong> is our primary focus here. Overheating causes the release of hydrogen chloride (HCl), which can burn the material and corrode mold steel. We always use compounds stabilized specifically for injection molding to mitigate this.<\/li>\n<\/ul>\n<h3>Flow Rates and Shrinkage Control<\/h3>\n<p>Standard uPVC is naturally viscous, which can make filling thin-walled complex molds difficult. To combat this, we often utilize <strong>high flow rigid PVC<\/strong> grades that contain flow modifiers.<\/p>\n<ul>\n<li><strong>Shrinkage Rate:<\/strong> One of the biggest advantages of rigid PVC is its dimensional stability. The <strong>rigid PVC shrinkage rate<\/strong> is very low, typically between <strong>0.2% and 0.6%<\/strong>. This allows us to hold very tight tolerances on precision parts.<\/li>\n<li><strong>Flow Consistency:<\/strong> Consistent pellet geometry ensures uniform melting and flow, preventing issues like short shots in multi-cavity tools.<\/li>\n<\/ul>\n<h3>Chemical Resistance and Flame Retardancy<\/h3>\n<p>For applications in harsh environments, rigid PVC is often the default choice.<\/p>\n<ul>\n<li><strong>Chemical Immunity:<\/strong> It stands up exceptionally well against acids, alkalis, bases, and salts, making it ideal for pipe fittings and chemical containers.<\/li>\n<li><strong>Fire Safety:<\/strong> Due to its high chlorine content, rigid PVC is inherently flame retardant. Most compounds easily meet <strong>UL-94 V-0<\/strong> standards without the need for expensive additives.<\/li>\n<\/ul>\n<p>By mastering these properties, we ensure that every batch of <strong>PVC pellets for injection molding<\/strong> translates into a durable, high-performance component.<\/p>\n<h2>Processing Challenges and Practical Solutions<\/h2>\n<p><strong>Injection molding PVC processing<\/strong> presents a unique set of hurdles compared to standard thermoplastics. Rigid PVC is shear-sensitive and has a narrow processing window, meaning precise control is required to maintain <strong>rigid PVC material properties<\/strong> without degrading the resin. We focus on stabilizing the process to deliver consistent, high-strength parts.<\/p>\n<h3>Combating Thermal Degradation and Corrosion<\/h3>\n<p>The biggest risk in <strong>unplasticized PVC injection molding<\/strong> is thermal degradation. If the melt temperature exceeds the limit or resides in the barrel too long, the material decomposes and releases hydrochloric acid (HCl). This gas is highly corrosive to standard tool steels.<\/p>\n<ul>\n<li><strong>Corrosion Resistance:<\/strong> We use stainless steel molds or apply chrome\/nickel plating to protect the tooling surface.<\/li>\n<li><strong>Temperature Control:<\/strong> Strict monitoring of heater bands prevents hotspots. We also rely on effective <strong>PVC heat stabilizers<\/strong> within the compound to maintain <strong>thermal stability PVC molding<\/strong>.<\/li>\n<\/ul>\n<h3>Solving Flow Issues and Defects<\/h3>\n<p>Rigid PVC is naturally viscous, which can lead to filling difficulties. Without proper parameter settings, you may encounter short shots (incomplete parts) or weak weld lines.<\/p>\n<ul>\n<li><strong>Flow Optimization:<\/strong> For complex geometries, we often recommend <strong>high flow rigid PVC<\/strong> grades to ensure the mold fills completely before the material sets.<\/li>\n<li><strong>Defect Prevention:<\/strong> Silver streaking (splay) usually indicates moisture or excessive shear heat, while sink marks occur in thick areas with inadequate packing pressure. Our team applies advanced <a href=\"https:\/\/jinoplastics.com\/troubleshooting-in-injection-moulding-2\/\">troubleshooting in injection moulding<\/a> protocols to balance injection speed and holding pressure, eliminating these surface imperfections.<\/li>\n<\/ul>\n<h3>Equipment Setup: Dedicated Screws and Shear Control<\/h3>\n<p>Standard equipment often fails with rigid vinyl. We utilize specialized hardware to handle the material&#8217;s specific behavior.<\/p>\n<ul>\n<li><strong>Screw Design:<\/strong> We use dedicated PVC screws with a low compression ratio (typically 2.0:1 to 2.5:1) and deep flight depths. This minimizes shear heat generation, preventing the material from burning inside the barrel.<\/li>\n<li><strong>Tooling Design:<\/strong> Proper <a href=\"https:\/\/jinoplastics.com\/plastic-injection-mould-tooling\/\">plastic injection mould tooling<\/a> is critical; we design gates and runners to be larger than average to reduce friction and allow smooth flow of the <strong>rigid PVC granules<\/strong>.<\/li>\n<\/ul>\n<h2>Recommended Processing Parameters for Rigid PVC<\/h2>\n<p>Getting the settings right for <strong>raw material PVC-rigid injection molding<\/strong> is a precise game. Unlike forgiving resins like PP, rigid PVC has a narrow processing window. If you run it too hot or too fast, the material degrades, releasing corrosive gases that damage tooling and ruin the part. Here is how we optimize our setup for consistent results.<\/p>\n<h3>Drying Requirements and Pre-heating<\/h3>\n<p>Generally, <strong>rigid PVC compounds<\/strong> are not hygroscopic, meaning they don&#8217;t absorb moisture internally like Nylon. However, surface moisture can still cause silver streaks or &#8220;splay&#8221; on the finished product.<\/p>\n<ul>\n<li><strong>Recommendation:<\/strong> If the material has been stored in a humid environment, dry the <strong>rigid PVC granules<\/strong> for <strong>1.5 to 2 hours at 75\u00b0C &#8211; 85\u00b0C<\/strong>.<\/li>\n<li><strong>Hopper:<\/strong> We use stainless steel hoppers to prevent contamination and ensure smooth feeding.<\/li>\n<\/ul>\n<h3>Optimizing Melt and Mold Temperatures<\/h3>\n<p>Temperature control is the most critical factor. <strong>PVC injection molding temperature<\/strong> must be kept low enough to prevent degradation but high enough to ensure proper flow.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Parameter<\/th>\n<th style=\"text-align: left;\">Recommended Range<\/th>\n<th style=\"text-align: left;\">Notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Rear Zone<\/strong><\/td>\n<td style=\"text-align: left;\">170\u00b0C &#8211; 190\u00b0C<\/td>\n<td style=\"text-align: left;\">Keep lower to prevent premature melting.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Middle Zone<\/strong><\/td>\n<td style=\"text-align: left;\">180\u00b0C &#8211; 200\u00b0C<\/td>\n<td style=\"text-align: left;\">Gradual increase to plasticize the resin.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Front Zone<\/strong><\/td>\n<td style=\"text-align: left;\">190\u00b0C &#8211; 210\u00b0C<\/td>\n<td style=\"text-align: left;\">Critical zone; do not exceed degradation limits.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Nozzle Temp<\/strong><\/td>\n<td style=\"text-align: left;\">195\u00b0C &#8211; 210\u00b0C<\/td>\n<td style=\"text-align: left;\">Should be slightly lower than the front zone to prevent drool.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Mold Temp<\/strong><\/td>\n<td style=\"text-align: left;\">30\u00b0C &#8211; 60\u00b0C<\/td>\n<td style=\"text-align: left;\">Higher mold temps improve surface gloss but increase cycle time.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Injection Speed, Pressure, and Holding<\/h3>\n<p>Because <strong>rigid PVC<\/strong> is highly viscous, it resists flow. However, cranking up the speed causes shear heat, which burns the material.<\/p>\n<ul>\n<li><strong>Injection Speed:<\/strong> Use a <strong>moderate speed<\/strong>. Start slow to prevent jetting, increase slightly to fill, and slow down at the end to prevent flashing.<\/li>\n<li><strong>Injection Pressure:<\/strong> High pressure is often required (up to 1500 bar) to push the viscous <strong>rigid PVC compound<\/strong> into complex geometries.<\/li>\n<li><strong>Holding Pressure:<\/strong> Maintain holding pressure to compensate for the <strong>rigid PVC shrinkage rate<\/strong> (typically 0.2% &#8211; 0.6%) and prevent sink marks.<\/li>\n<\/ul>\n<h3>Cooling Strategies and Venting<\/h3>\n<p>Since PVC can release hydrochloric acid (HCL) gas if slightly overheated, your tooling must be designed to handle it. We always recommend using high-grade, <a href=\"https:\/\/jinoplastics.com\/injection-moulding-die-material\/\">corrosion-resistant injection moulding die materials<\/a> like stainless steel or chrome-plated molds to extend tool life.<\/p>\n<ul>\n<li><strong>Venting:<\/strong> Generous venting (0.03mm &#8211; 0.05mm depth) is mandatory to prevent gas traps and burn marks.<\/li>\n<li><strong>Cooling Time:<\/strong> PVC conducts heat poorly. Adequate cooling time is necessary to ensure the part is rigid enough for ejection without warping.<\/li>\n<\/ul>\n<h2>Applications and Industry Use Cases<\/h2>\n<p>Rigid PVC (uPVC) is a powerhouse material that bridges the gap between commodity plastics and high-performance engineering resins. Its unique <strong>rigid PVC material properties<\/strong>\u2014specifically high stiffness, inherent flame retardancy, and chemical inertness\u2014make it the material of choice across diverse sectors where durability is non-negotiable.<\/p>\n<h3>Construction and Infrastructure<\/h3>\n<p>The construction industry relies heavily on <strong>unplasticized PVC injection molding<\/strong> for components that must withstand environmental stress. We frequently manufacture complex geometries that replace traditional metal parts, offering corrosion resistance without sacrificing structural integrity.<\/p>\n<ul>\n<li><strong>Piping Components:<\/strong> <strong>Rigid PVC fittings molding<\/strong> is essential for creating high-pressure valves, elbows, and adapters that maintain tight seals for decades.<\/li>\n<li><strong>Window &amp; Door Hardware:<\/strong> UV-stabilized compounds are used for window stops, handles, and locking mechanisms that resist weathering.<\/li>\n<li><strong>Electrical:<\/strong> Due to excellent electrical insulation, rigid PVC is ideal for junction boxes and conduit bodies.<\/li>\n<\/ul>\n<h3>Industrial and Fluid Handling<\/h3>\n<p>In industrial settings, the chemical resistance of rigid PVC is unmatched at its price point. It performs exceptionally well in environments exposed to acids, alkalis, and industrial salts. We produce chemical-resistant enclosures and pump housings that protect sensitive equipment from corrosive failure. For healthcare sectors requiring stringent hygiene, our <a href=\"https:\/\/jinoplastics.com\/medical-injection-moulding\/\">medical injection moulding services<\/a> utilize specialized PVC grades resistant to aggressive sterilization and chemical cleaning agents.<\/p>\n<h3>Consumer Goods and Appliances<\/h3>\n<p>Beyond industrial use, rigid PVC is found in everyday consumer products. Its ability to achieve a high-gloss finish makes it suitable for appliance housings and structural elements in white goods. The material&#8217;s natural flame retardancy (meeting UL-94 standards without additives) is a critical safety feature for electronics housings and power tool casings.<\/p>\n<h3>Cost vs. Performance Comparison<\/h3>\n<p>Selecting the right material often comes down to balancing the budget with mechanical requirements. When deadlines are tight for large-scale projects, understanding <a href=\"https:\/\/jinoplastics.com\/how-long-does-injection-moulding-take\/\">how long injection moulding takes<\/a> helps in planning rapid production runs, but the material cost is equally vital.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Feature<\/th>\n<th style=\"text-align: left;\">Rigid PVC (uPVC)<\/th>\n<th style=\"text-align: left;\">ABS<\/th>\n<th style=\"text-align: left;\">Polycarbonate (PC)<\/th>\n<th style=\"text-align: left;\">Metal (Aluminum\/Steel)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Cost<\/strong><\/td>\n<td style=\"text-align: left;\">Low<\/td>\n<td style=\"text-align: left;\">Medium<\/td>\n<td style=\"text-align: left;\">High<\/td>\n<td style=\"text-align: left;\">Very High<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Chemical Resistance<\/strong><\/td>\n<td style=\"text-align: left;\">Excellent<\/td>\n<td style=\"text-align: left;\">Poor<\/td>\n<td style=\"text-align: left;\">Fair<\/td>\n<td style=\"text-align: left;\">Excellent<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Impact Strength<\/strong><\/td>\n<td style=\"text-align: left;\">Good (with modifiers)<\/td>\n<td style=\"text-align: left;\">High<\/td>\n<td style=\"text-align: left;\">Very High<\/td>\n<td style=\"text-align: left;\">Extreme<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Stiffness<\/strong><\/td>\n<td style=\"text-align: left;\">High<\/td>\n<td style=\"text-align: left;\">Medium<\/td>\n<td style=\"text-align: left;\">High<\/td>\n<td style=\"text-align: left;\">Extreme<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Processing<\/strong><\/td>\n<td style=\"text-align: left;\">Difficult (Heat Sensitive)<\/td>\n<td style=\"text-align: left;\">Easy<\/td>\n<td style=\"text-align: left;\">Moderate<\/td>\n<td style=\"text-align: left;\">N\/A (Machining\/Casting)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Rigid PVC offers a cost-effective alternative to Polycarbonate and metal for parts requiring high stiffness and chemical stability, provided the temperature requirements remain below 60\u00b0C (140\u00b0F).<\/p>\n<h2>Selecting the Right Rigid PVC Raw Material Supplier<\/h2>\n<p>Finding reliable <strong>PVC compound suppliers<\/strong> is critical because the quality of the raw material directly dictates the stability of your production run. Inconsistent resin batches can lead to thermal degradation, poor impact strength, or color variance. When sourcing a <strong>rigid PVC compound<\/strong>, we prioritize partners who can guarantee batch-to-batch consistency and provide full traceability.<\/p>\n<h3>Evaluating Consistency and Compliance<\/h3>\n<p>For global markets, regulatory compliance is non-negotiable. We ensure that every <strong>custom rigid PVC formulation<\/strong> we process meets strict RoHS and REACH standards. This is particularly important for consumer and medical applications where safety is paramount. We recommend opting for a <strong>lead-free PVC compound<\/strong> to ensure your products remain compliant with environmental regulations across Europe and North America.<\/p>\n<h3>Supply Chain and Customization<\/h3>\n<p>Your project requirements shouldn&#8217;t be limited by a supplier&#8217;s catalog. We look for flexibility in <strong>supply chain factors<\/strong>, including:<\/p>\n<ul>\n<li><strong>Low MOQs:<\/strong> Ability to order smaller quantities for prototyping or bridge production.<\/li>\n<li><strong>Pricing Stability:<\/strong> Locking in raw material costs to prevent budget overruns.<\/li>\n<li><strong>Custom Color Matching:<\/strong> Precise color formulation without compromising the resin&#8217;s physical properties.<\/li>\n<\/ul>\n<h3>Why Choose Jino Injection Molding<\/h3>\n<p>We don&#8217;t just shoot plastic; we understand the chemistry behind it. Processing rigid PVC requires specialized equipment to prevent corrosion and burning. Our expertise in <a href=\"https:\/\/jinoplastics.com\/precision-mould-manufacturing\/\">precision mould manufacturing<\/a> allows us to build robust stainless steel tools specifically designed to handle the corrosive gasses released during PVC processing. By integrating material selection with advanced tooling design, Jino delivers durable, high-precision rigid PVC parts that perform exactly as intended.<\/p>\n<h2>Frequently Asked Questions About Rigid PVC Molding<\/h2>\n<h3>Does rigid PVC require drying before injection molding?<\/h3>\n<p>Generally, rigid PVC (uPVC) is not hygroscopic, meaning it does not absorb moisture into the molecular structure like Nylon or PC. However, surface moisture can form on <strong>PVC pellets for injection molding<\/strong> if they are stored in humid environments or subjected to temperature changes. This surface moisture can cause &#8220;splay&#8221; or silver streaks on the finished part.<\/p>\n<p>We recommend drying <strong>rigid PVC granules<\/strong> for about 1 to 2 hours at 60\u00b0C\u201370\u00b0C (140\u00b0F\u2013158\u00b0F) if you suspect moisture contamination. Always be careful not to overheat the material during drying, as this can degrade the heat stabilizers before the material even enters the barrel.<\/p>\n<h3>What is the typical shrinkage rate for rigid PVC?<\/h3>\n<p>One of the biggest advantages of <strong>unplasticized PVC injection molding<\/strong> is its dimensional stability. The typical <strong>rigid PVC shrinkage rate<\/strong> is very low, generally falling between <strong>0.2% and 0.6%<\/strong> (0.002\u20130.006 in\/in).<\/p>\n<p>Because the shrinkage is minimal and predictable, rigid PVC is an excellent choice for parts requiring tight tolerances. This stability simplifies the engineering process when you <a href=\"https:\/\/jinoplastics.com\/design-a-mould-for-injection-moulding\/\">design a mould for injection moulding<\/a>, as you don&#8217;t need to compensate for massive volume changes during cooling compared to semi-crystalline materials like Polyethylene.<\/p>\n<h3>How do you prevent black specks or burning during processing?<\/h3>\n<p>Black specks are a sign of thermal degradation, usually caused by the material overheating or sitting in the barrel too long. <strong>Thermal stability PVC molding<\/strong> relies on strict process control:<\/p>\n<ul>\n<li><strong>Eliminate Dead Spots:<\/strong> Ensure the screw and barrel design prevents material from stagnating.<\/li>\n<li><strong>Check Heat Stabilizers:<\/strong> Verify your <strong>rigid PVC compound<\/strong> has sufficient stabilization for your cycle time.<\/li>\n<li><strong>Reduce Shear Heat:<\/strong> High screw speeds create friction (shear) which raises the melt temperature uncontrollably. Lower the back pressure and screw rotation speed.<\/li>\n<li><strong>Purge Immediately:<\/strong> Never let PVC sit in a heated barrel during downtime. Purge with a stable material (like PP) immediately if the machine stops.<\/li>\n<\/ul>\n<h3>What is the ideal melt temperature range for rigid PVC?<\/h3>\n<p>Rigid PVC has a narrow processing window. The ideal <strong>PVC injection molding temperature<\/strong> for the melt typically ranges from <strong>170\u00b0C to 210\u00b0C (338\u00b0F to 410\u00b0F)<\/strong>.<\/p>\n<p>If the temperature drops below this range, the high viscosity makes filling the mold difficult. If it exceeds 210\u00b0C, the material risks rapid degradation, releasing hydrochloric acid (HCL) gas which corrodes the mold and machine components. Precise temperature control is the most critical factor in successful <strong>injection molding PVC processing<\/strong>.<\/p>\n<div id=\"references\" class=\"min-w-0 scroll-mt-8 overflow-hidden\">\n<div class=\"text-[16px]\">\n<h2 id=\"references\" class=\"mb-2 mt-2 scroll-mt-24 font-serif text-[1.714286em] font-semibold border-border-l1 pb-1 border-b overflow-hidden\">Related Sources<\/h2>\n<\/div>\n<div class=\"flex flex-col gap-2 text-sm leading-relaxed\">\n<div class=\"break-words text-[1em] leading-7\"><a class=\"break-words text-[1em] text-blue-500 hover:underline dark:text-blue-200\" href=\"https:\/\/www.zmsmaterial.com\/pvc-series\/rigid-pvc-compound\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.zmsmaterial.com\/pvc-series\/rigid-pvc-compound\/<\/a><\/div>\n<div class=\"break-words text-[1em] leading-7\"><a class=\"break-words text-[1em] text-blue-500 hover:underline dark:text-blue-200\" 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