{"id":3484,"date":"2021-10-06T09:55:41","date_gmt":"2021-10-06T09:55:41","guid":{"rendered":"http:\/\/irplastics.com\/en\/?post_type=product&p=3484"},"modified":"2025-12-24T09:37:09","modified_gmt":"2025-12-24T10:37:09","slug":"pet821-polyethylene-terephthalate","status":"publish","type":"product","link":"https:\/\/irplastics.com\/en\/product\/pet821-polyethylene-terephthalate\/","title":{"rendered":"PET821 Polyethylene Terephthalate"},"content":{"rendered":"

PET821 Polyethylene Terephthalate; Bottle Grade<\/h1>\n

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Introduction<\/h1>\n

PET821<\/strong> is one of the most widely used grades of polyethylene terephthalate in the packaging industry, specifically designed for the production of mineral water bottles, carbonated drinks, edible oil bottles, and pharmaceutical containers such as pill and medicine cans. This grade has found a special place in domestic and export production lines due to its good balance between transparency, mechanical strength, chemical resistance, and high processability.
\nIn a situation where manufacturers are faced with challenges such as reducing bottle weight, increasing productivity, maintaining appearance quality, and meeting health standards, PET821<\/strong> can be a suitable answer to these needs. Simultaneous access to Iranian grade for domestic sales and foreign grade with delivery from Jebel Ali for export has made this product a flexible option for regional and international markets.<\/p>\n

Product Description<\/h2>\n

Polyethylene terephthalate is a type of polymer that is used in most countries to produce polyester fibers (70%), bottle resin (22%), film (6%), and engineering polyester resins (2%), but in Iran this polymer is mostly used to make various types of beverage bottles.<\/p>\n

PET is the most widely used thermoplastic polymer in the world. In the textile industry, this polymer is known by the trade name polyester. PET is naturally transparent and is considered a semi-crystalline plastic.<\/p>\n

Polyethylene terephthalate (BG821) (BG820S) or BG821 material is a bottle grade polyethylene terephthalate (PET) produced by a continuous melt polymerization process combined with solid state polymerization. This polymer grade has very good transparency and gloss, high toughness, and is highly resistant to oxygen and carbon dioxide penetration.<\/p>\n

Features<\/h3>\n

Very good transparency and gloss, high toughness, and is highly resistant to oxygen and carbon dioxide penetration.<\/p>\n

High optical clarity
\nPET821<\/strong> allows the production of bottles with high transparency and a crystalline appearance, which is very important for beverage and mineral water brands. This feature helps to better see the final product on the shelf.
\nGood mechanical strength
\nThis grade has a good balance between tensile strength and impact resistance, so that the bottles do not deform or crack under the pressure of carbonated beverages and the stresses of transportation. They do not crack.
\nStable processability
\nPET821<\/strong> behaves uniformly in preform injection lines and shows little fluctuation in the process. This reduces waste, increases production speed and stabilizes the quality of the final product.
\nChemical and hygienic resistance
\nThis grade is resistant to oils, weak acids and compounds found in beverages and is compatible with food and pharmaceutical contact standards.<\/p>\n

Applications<\/h3>\n

The applications of PET821<\/strong> polyethylene terephthalate are in carbonated beverage bottles.<\/p>\n

PET 821 is used in various industries due to its technical characteristics, including:
\n\u2022 Production of mineral water bottles in different volumes<\/p>\n

\"PET821<\/p>\n

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\u2022 Carbonated beverage bottles with high internal pressure<\/p>\n

\"PET821<\/h4>\n

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