{"id":26822,"date":"2026-06-30T12:41:47","date_gmt":"2026-06-30T10:41:47","guid":{"rendered":"https:\/\/silmisa.com\/uncategorized\/what-is-plastic-granulate-and-what-is-it-used-for\/"},"modified":"2026-06-30T12:41:50","modified_gmt":"2026-06-30T10:41:50","slug":"what-is-plastic-granulate-and-what-is-it-used-for","status":"publish","type":"post","link":"https:\/\/silmisa.com\/en\/recycling-news\/what-is-plastic-granulate-and-what-is-it-used-for\/","title":{"rendered":"What is plastic granulate and what is it used for?"},"content":{"rendered":"\n

Plastic granules<\/strong> are a plastic material processed into small pellets that are used as a raw material to manufacture new industrial products. <\/p>\n\n

Bottles, technical parts, containers, pipes, and automotive components often originate from a preliminary recycling and processing stage that ultimately results in plastic pellets. Even so, many people still confuse this material with flakes or are unaware of the different types that exist and why some offer better quality than others. At Silmisa<\/strong>, specialists in industrial recycling machinery<\/a><\/strong>, we\u2019ll explain how this material works and what role it plays in today\u2019s industry. <\/p>\n\n

What is plastic granules? <\/h2>\n\n

Recycled plastic granules<\/strong> are produced by transforming plastic waste into a uniform, reusable material<\/strong> through industrial processes such as shredding, washing, extrusion, and pelletization. <\/p>\n\n

This small-cylinder format greatly facilitates processing in extruders, injection molding machines, and other processing equipment. Ultimately, the industry needs materials that are stable, easy to meter, and perform consistently<\/strong> throughout production. <\/p>\n\n

Inside a recycling plant, the process varies significantly depending on the type of plastic and the desired quality level. Some materials require more rigorous washing, finer filtration, or much more precise moisture control. All of these factors ultimately affect the quality of the regrind and its potential uses in manufacturing. <\/p>\n\n

Types of plastic granules <\/h2>\n\n

There are many types of plastic pellets<\/strong>, and each one is designed to meet quite different industrial needs. Some materials prioritize heat resistance, while others prioritize flexibility, lightness, or chemical stability. Their behavior also varies greatly during processes such as injection molding, extrusion, or blow molding. <\/p>\n\n

In industrial recycling, very specific polymers tend to be recycled because they generate large volumes of waste and can be reused relatively efficiently. Even so, not all recycled materials are suitable for the same purposes<\/strong>. The quality of the pretreatment has a significant impact on the final result, especially in technical applications or industries where the material is subjected to continuous stress. <\/p>\n\n

PET granules <\/h3>\n\n

Commonly found in food bottles and packaging<\/strong>, PET granules<\/a><\/strong> offer good mechanical strength, stability and a distinctive transparency<\/strong>. Many companies use them to manufacture new bottles, films or textile fibres. During the recycling process, they require fairly precise moisture control, as the material easily loses its properties if contaminated or if residual water is present. <\/p>\n\n

Polyethylene granules <\/h3>\n\n

Both flexible and durable, polyethylene granules<\/a><\/strong> are widely used in industrial film, bags, pipes and technical packaging<\/strong>. Depending on the type of PE, the material varies considerably in density and rigidity. Furthermore, it withstands chemicals and harsh conditions well, a quality that is highly valued in industrial and agricultural sectors. <\/p>\n\n

Polypropylene granules <\/h3>\n\n

Polypropylene granules<\/strong> are widely used in the automotive industry, furniture and injection-moulded parts thanks to their light weight and heat resistance<\/strong>. They also enable fast and fairly stable production cycles. In industrial recycling, PP is usually in high demand as it combines lightness with a level of rigidity that is attractive for many technical applications. <\/p>\n\n

Properties of the granules <\/h2>\n\n

Among recycled materials, plastic granules<\/strong> stand out for offering a much more stable and uniform form than other types of plastic waste that have undergone only basic processing<\/strong>. This consistency makes work on industrial production lines considerably easier and helps to maintain a more consistent output. <\/p>\n\n

    \n
  • Material uniformity<\/strong>: improves the feed rate of industrial machinery and prevents sudden changes during production. <\/li>\n<\/ul>\n\n
      \n
    • Ease of processing<\/strong>: it enables more consistent injection, extrusion or blow-moulding processes. <\/li>\n<\/ul>\n\n
        \n
      • Reduced storage volume<\/strong>: the pellet format simplifies transport, handling and dosing at the plant. <\/li>\n<\/ul>\n\n
          \n
        • Industrial versatility<\/strong>: it can be reused in a wide range of sectors, depending on the polymer and the treatment applied. <\/li>\n<\/ul>\n\n
            \n
          • Waste recovery<\/strong>: helps to recover plastic materials so that they can be reintroduced into new production cycles. <\/li>\n<\/ul>\n\n

            All these properties explain why many industries work directly with recycled pellets rather than using untreated flakes. The behaviour of the material changes considerably, and this ultimately affects the performance of the machinery as well. <\/p>\n\n

            Industrial uses of granules <\/h2>\n\n

            The reuse of recycled plastic is playing an increasingly important role in industrial production<\/strong>. Many companies are already using recovered materials to manufacture new products without relying solely on virgin raw materials. <\/p>\n\n

              \n
            • Packaging manufacture<\/strong>: bottles, trays and containers are made from recycled materials that have been turned into pellets. <\/li>\n<\/ul>\n\n
                \n
              • Manufacture of technical parts<\/strong>: many industries produce components using injection moulding or extrusion. <\/li>\n<\/ul>\n\n
                  \n
                • Automotive sector<\/strong>: some interior parts and casings incorporate processed recycled polymers. <\/li>\n<\/ul>\n\n
                    \n
                  • Industrial packaging<\/strong>: boxes, film and packaging make use of recycled materials to reduce waste. <\/li>\n<\/ul>\n\n
                      \n
                    • Construction and pipework<\/strong>: certain profiles and pipes are made from pre-treated recycled plastic. <\/li>\n<\/ul>\n\n

                      The quality of the recycling process has a significant impact on the final outcome of the material. Sorting, shredding, washing and extrusion directly influence the behavior of the granules<\/strong> during production. This is precisely where companies such as Silmisa come in, specializing in developing machinery capable of improving this entire industrial process. <\/p>\n\n

                      Frequently asked questions <\/h2>\n\n

                      What is the difference between granules and flakes? <\/h3>\n\n

                      The flakes are produced directly from the grinding of plastic, whilst plastic granules<\/strong> have already undergone extrusion and pelletisation processes to produce a more uniform and stable material. <\/p>\n\n

                      What types of plastic granules are there? <\/h3>\n\n

                      Among the most common materials are PET granules<\/strong>, polyethylene, polypropylene and PVC, each with different properties and industrial applications. <\/p>\n\n

                      Is recycled granulate of good quality? <\/h3>\n\n

                      Yes. Recycled granules<\/strong> that have been properly sorted, washed and filtered can perform very well in many industrial processes and technical applications. <\/p>\n","protected":false},"excerpt":{"rendered":"

                      Plastic granules are a plastic material processed into small pellets that are used as a raw material to manufacture new industrial products. Bottles, technical parts, containers, pipes, and automotive components often originate from a preliminary recycling and processing stage that ultimately results in plastic pellets. Even so, many people still confuse this material with flakes […]<\/p>\n","protected":false},"author":3,"featured_media":26813,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[354],"tags":[310,582,547,549,583],"class_list":["post-26822","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recycling-news","tag-plastic","tag-plastic-granules","tag-plastic-recycling","tag-recycle-plastic","tag-shred-plastic"],"_links":{"self":[{"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/posts\/26822","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/comments?post=26822"}],"version-history":[{"count":1,"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/posts\/26822\/revisions"}],"predecessor-version":[{"id":26823,"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/posts\/26822\/revisions\/26823"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/media\/26813"}],"wp:attachment":[{"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/media?parent=26822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/categories?post=26822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/silmisa.com\/en\/wp-json\/wp\/v2\/tags?post=26822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}