Resins are typicallyviscoussubstances that convert into rigidpolymersthrough a curing process. Silicone resins used to be created with sodium silicate and various chlorosilanes, but now they are often formed with the less reactive tetraethoxysilane or ethyl polysilicate and several disiloxanes. This material is economical, impact resistant, and provides a good moisture barrier. Company. Hot-air dryers pull ambient air from the surrounding environment, heat it with a heating element, and then pass it through a hopper filled with plastic resin. Two commercial grades are available for packaging like shrink wrap and stretch. Hot air dryers are typically used only for non-hygroscopic materials that collect . Find and evaluate OEMs, Custom Manufacturers, Service Companies and Distributors. It is a member of the ester family so also called as polyester. They are gluey and viscous. Although some variety of this resin is recyclable, there are environmental concerns regarding using it. LLDPE. The acrylic acid and methacrylic acid repeating units, making up 5 to 20 percent of the copolymers, have the following structures: The acidic carboxyl (CO2H) groups in these units are neutralized with bases to form highly polar ionic groups distributed along the polyethylene chains. LDPE is amorphous while HDPE is crystalline which accounts for LDPEs greater ductility and HDPEs higher rigidity. It is a composite blend that is rotationally molded into strong products that are affordable, lightweight, and can imitate the look of other materials like stone or granite. 1. Like making resin beads. Gluesmith Plastic Repair Glue System. With a melting point more than 20 C (36 F) higher than LDPE, it can withstand repeated exposure to 120 C (250 F) so that it can be sterilized. M8060 M200056 is a High Density Polyethylene grade with narrow molecular weight distribution suitable for injection molding applications. Conductive polyethylene resin composition, molded product using same, and laminate body. Monday - Friday: 9am - 4pm EST (877) 777 . Alkyd resins are thermoplastic polyester resins created by heating polyhydric alcohols with polybasic acids. They are used for rubber, laminates, encapsulated resins, defoamers, and water-resistant applications. You can use Thomas' Supplier Discovery Platform to find Suppliers of Polycarbonate Resins. Polyethylene (PE) resins are thermoplastic polymers which means that they may be formed with heat and re-melted without losing their intrinsic characteristics. MERCI Consists of two anions which are bound to a metal center and has catalytic properties. They have excellent chemical and heat resistance and strong adhesion properties. patents-wipo. A Step-by-Step Explanation, Top Suppliers of PVC (Polyvinyl Chloride), All About Silicone Rubber - Properties, Applications and Uses, Customer Spend Analysis: Definition, Prediction, and Calculate Spend, Sticking Your Head in the Freezer Might Help You Sleep, This Company Is Building a Rover That Provides Power on the Moon, How to Overcome Injection Molding Supply Chain Hurdles, California's Last Nuclear Plant Gets $1 Billion to Keep Running. High density polyethylene can be easily processed by injection molding, extrusion (tubes, blow and cast films, cables, etc. High Density Polyethylene (HDPE) HDPE is the world's #1 plastic and the most commonly blow molded plastic material. This makes it especially popular for packaging foods and beverages, like soft drinks . To avoid this a UV stabilizer must be added. 4. On aurait peut-tre essay de mieux Phenolic resins are machined easily. High performance characteristics which provide maximum puncture and tear resistance. You use Thomas' Supplier Discovery Platform to find Suppliers of Polyester Resins. 10+ million models from leading OEMs, compatible with all major CAD software systems. It's used in a vast array of products, including bottles for consumer liquids such as shampoo and motor oil, coolers, play structures, fuel tanks, industrial drums, and carrying cases. Polyethylene terephthalate (PET) resin is used for various of applications, such as packaging, industrial parts and . They are used for nonlubricated bearings, fibers, gears, sutures, tires, watchbands, packaging, and bottles. These differences are what allow the resins to be used in different applications. Polyethylene, referred to as PE, is usually a mixture of polymers and ethylene. The main advantages of LLDPE are that the polymerization conditions are less energy-intensive and that the polymers properties may be altered by varying the type and amount of its chemical ingredients. Thomas Register and Select From Over 500,000 Industrial Suppliers. It is available as flexible and semi-rigid film for packaging, in sheet-form for thermoforming, and in various extruded shapes such as rounds and bars. Polyethylene is compatible with most diluted acids and bases such as those used in household cleaning products, making it a suitable container material for these chemicals. The world's largest volume polyethylene is high density polyethylene ('HDPE'), which has a relatively high degree . Low density polyethylene (LDPE) with the flexibility and melt strength for containers, bottles, tubing, membranes, computer components and laboratory equipment. Linear Low-Density Polyethylene (LLDPE) resin for plastic bags. Food Contact. UV stabilized, high strength, antiblocking, etc. Acrylic resins are impact and UV resistant. Injection molding parts made from this re. Polyethylene Terephthalate, also known as PET, is the fourth most highly used thermoplastic in the world. The material burns readily and is considered to be highly flammable. It can exist in both a transparent and a semi-crystalline polymer, depending upon the processing and thermal history. Thomas Regional are part of Thomasnet.com. Contact us with any inquiries you may have and we will produce a solution tailored to your specific requirements. Resins cannot avoid impurities. Polyethylene terephthalate or PET belongs to the family of polyesters. bernard.gourdon2@wanadoo.fr, GOOD EVENING (Cl. The resultant structure has a linear backbone, but it has short, uniform branches that, like the longer branches of LDPE, prevent the polymer chains from packing closely together. Low Density Polyethylene can be processed by injection molding or rotomolding also. Thermoplastics differ in this way from thermosets, which undergo permanent change after hardening. Adding color to resins requires various coloring systems, each of which offers its own unique properties, benefits, and drawbacks: Compounding: Resins are pre-mixed with pigment and ready to use for molding. The plastic recycling code number of HDPE is #2. We provide direct from manufacturer service and prices for stock as well as custom products. Polyethylene is composed of a single monomer, ethylene, making it a homopolymer. It is a type of thermoplastic used to manufacture bags, tubing, sheeting, stretch and shrink films. This is a common type of plastic bag material used in the manufacture of plastic bags for use in newspaper bags, garbage bags, and food bags, among others. Polyethylene resins are the most common type of resin, with over 100 million tons produced annually. Polyethylene (PE), a member of the important family of polyolefin resin, is the most widely used plastic in the world. Thomasnet Is A Registered Trademark Of Thomas Publishing Some resins are also used in 3D printing; you can find out more about how they are used in our guide on how 3D printing worksor shop for 3D printer resin on Xometry.com, the industry's leading on-demand manufacturing platform. California Do Not Track Notice. It is made by copolymerizing ethylene with 1-butene and smaller amounts of 1-hexene and 1-octene, using Ziegler-Natta or metallocene catalysts. Privacy Statement and in Polyethylene There are many types of resin. The ethylene-acrylic acid and ethylene-methacrylic acid ionomers are transparent, semicrystalline, and impervious to moisture. Thermoplastic resins such as polyethylene, polypropylene, polyvinyl . Ethylene can be copolymerized with a number of other compounds. It has good flow characteristics that make it easier to process. Terms and Conditions, Being and ideal material for injection molding process, it is majorly used for batch and continuous production. M8060 is a high density polyethylene resin used for injection molding. HDPE. Plastic resin breaks down into seven types (although note that one of them is a catch-all category). All this testing has led to a wide variety of many resins available including high performance resins that started in 2005. Polyethylene terephthalate is a polymer that is formed by combining two monomers . The material is affected by UV light but its performance under these conditions can be improved through the use of additives. They are clear with good tensile strength. HDPE is one of the most commonly used resins in plastic pallets today. They are used for construction, laminate, auto-repair of fillers, skis, fishing rods, plane and ship components, coatings, decorative accessories, and bottles. Ethylene (C2H4) is a gaseous hydrocarbon commonly produced by the cracking of ethane, which in turn is a major constituent of natural gas or can be distilled from petroleum. The most common processing technique used for Low Density Polyethylene is extrusion (tubes, blow and cast films, cables). The polyethylene resin used for geomembranes is prepared by low-pressure polymerization of ethylene as the principal monomer. They are easily molded, strong and resistant, and lightweight. Company. LLDPE is structurally similar to LDPE. This white waxy substance was again produced by applying extremely high pressure to a mixture of ethylene and benzaldehyde. These groups, drawn together by their electric charge, cluster together in microdomains, stiffening and toughening the plastic without destroying its ability to be molded to permanent shapes. It is a polymer, primarily used for packaging (plastic bags, plastic films, geomembranes and containers including bottles, etc.). The basic polyethylene composition can be modified by the inclusion of other elements or chemical groups, as in the case of chlorinated and chlorosulfonated polyethylene. HDPE is manufactured at low temperatures and pressures, using Ziegler-Natta and metallocene catalysts or activated chromium oxide (known as a Phillips catalyst). Plastic Bottles - High Density Polyethylene (HDPE) HDPE is the most widely used resin for plastic bottles. What is High Density Polyethylene? Low density polyethylene has properties that are attractive for applications in food-safe bagging, waterproof packaging, and other packaging materials. All rights reserved. They have strong chemical and steam or moisture resistance and a high degree of flexibility. Recycled into many products such as . REVOLOOP resins are the first polyethylene (PE) compounds . du Pont de Nemours & Company (now DuPont Company), discovered a high-density material, but the company failed to recognize the potential of the product. PS is a versatile plastic that can be rigid or foamed. A Step-by-Step Explanation, Top Suppliers of PVC (Polyvinyl Chloride), 8 Industry Updates You Need to Know This Week [60-second Read], California's Last Nuclear Plant Gets $1 Billion to Keep Running, Sticking Your Head in the Freezer Might Help You Sleep, From Smart Christmas Lights to Electronics, These Are the Holiday Sourcing Trends We're Seeing on Thomasnet.com, How to Overcome Injection Molding Supply Chain Hurdles. Polymers with densities less than .941 are considered low density. You know what works to protect your resin art and crafting surface. Some resins are more likethermosetting plasticsin which the term "resin" is loosely applied to the reactant or product, or both. We have exhaustive list for you here , View All UHMWPE High Impact Resistance Grades , Here is the list of all XLPE grades suited for wires and cables , PE (mainly HDPE) is gradually gaining popularity as a 3D Printing material, View several recycled polyethylene grade options available today , High Degree of short chain branching + long chain branching, Linear (or Low degree of short chain branching), Using radical polymerization using tubular method or auto clave method, Using Ziegler-Natta catalyst or metallocene catalyst, Low crystalline and high amorphous (less than 50-60% crystalline), High crystalline and low amorphous (>90% crystalline), Shrink wrap, films, squeezable bottles garbage bags, extrusion moldings, and laminates, High performance bags, cushioning films, tire separator films, industrial liners, elastic films, ice bags, bags for supplemental packaging and garbage bags, Excellent resistance to acids, bases and vegetable oils, Molecular weight distribution is relatively narrow, has applications in injection moldings or flat yarns, and the latter type, Molecular weight distribution is wide, is used to make film products, hollow plastic products and pipes, Modifying natural gas (a methane, ethane, propane mix) or, The catalytic cracking of crude oil into gasoline. In general, the greater the materials density, the more crystalline its structure. Polyethylene is thermally stable, easy to grind to 35-mesh, low cost and results in strong and UV and chemically stable tanks. Plastic resins are also used in a variety of container and packaging products, such as PET beverage bottles, HDPE bottles for milk and water, and a wide variety of other resin types used in other plastic containers, bags, sacks, wraps and lids. They do not ordinarily require special drying regimes prior to injection molding or other processing. Stay up to date on industry news and trends, product announcements and the latest innovations. This type of plastic is renowned for its stable physical properties such as resistance to chemicals and solvents, high stability, flow characteristics, and durable weathering capabilities. Polyethylene is a type of polyolefins. Resin glues are widely used to bond plastic, ceramics, stone, glass, metal, wood, and more. Specific resins available with a variety of width and gauge combinations to fit your custom applications. With coefficients of expansion of nearly ten times that of steels, polymers, in general, require special techniques in machining especially when it comes to holding close tolerances. It is also a flexible composite. Delaney Nelson 3:55 AM MST on Dec 9, 2022. See UHMW-PE is very strong, with strength-to-weight ratios approaching that of some steels. This material is economical, impact resistant, and provides a good moisture barrier. Also, hot products used in the food industry may require a special type of polymer. Suitable for closed-loop or multi-trip product handling processes. They are prepared by the catalytic polymerization of ethylene [11]. Polyethylene machines readily and is often used as a replacement for metal components. PE performs optimally even after several cycles of sterilization. Abstract. Polyethylene is a common thermoplastic resin typically used for injection molding applications. Polyester. While every effort has been made to follow citation style rules, there may be some discrepancies. It conventional methods such as injection, blow or extrusion molding, because this material does not flow even at temperatures above its melting point. (click on the polymer name to learn about them in detail). The plastic recycling code of LLDPE is #4. Benefits of resin glue Website Last Modified December 11, 2022. Polyethylene resins are the most common type of resin, with over 100 million tons produced annually. Because the branches prevent the polyethylene molecules from packing closely together in hard, stiff, crystalline arrangements, LDPE is a very flexible material. They are used for toys, electronic components, pipe and production tubing, fibers and filaments, and coatings. High- density polyethylene or PEHD (polyethylene high density) has a high strength to density ratio. UHMWPE is processed variously by compression molding, ram extrusion, gel spinning, and sintering. The REVOLOOP resin is designed with 70% PCR, which provides up to 40% recycled content in the final product, Dow reports, while providing similar quality and performance as materials made with virgin resins. Polyurethane resin coatings are also often used in kindergartens and schools, as they reduce the risk of slipping and accidents. High density polyethylene ( HDPE) is used in a variety of applications and industries where excellent impact resistance, high tensile strength, low moisture absorption, and chemical/corrosion resistance properties are required. It is widely used in everyday items and easily recyclable. It absorbs almost no water, burns slowly and cannot be imprinted without pretreatment. 10+ million models from leading OEMs, compatible with all major CAD software systems. Linear low-density polyethylene is used as a packaging material in consumer goods, food and beverage, and industrial packaging applications. For more information on other resins, consult our other guides or visit the Thomas Supplier Discovery Platform to locate potential sources of supply or view details on specific products. Premier Plastic Resins, Inc. 189 W. Clarkston Rd. It is the most widely used plastic in the world, being made into products ranging from clear food wrap and shopping bags to detergent bottles and automobile fuel tanks. By using this site, you agree to our, All About Polycarbonate Resins - Properties and Uses, All About Polyamide Resins - Properties and Uses, All About Polyester Resins - Properties and Uses, All About Phenolic Resins - Properties and Uses, All About Epoxy Resins - Properties and Uses, All About Silicone Resins - Properties and Uses, All About Polypropylene Resins - Properties and Uses, How is Plastic Made? PET is among those plastics which are an important part of your everyday life. According to Miller Recycling Corporation, those are: 1 - PET or PETE (Polyethylene Terephthalate) During the reaction, trace oxygen contamination was an issue, making it difficult to reproduce. It can also be slit or spun into synthetic fibres or modified to take on the elastic properties of a rubber. These categories are listed according to their numerical plastic-resin recycling codes and were originally established in 1988. Note that this is for general reference and specific formulations of the material may result in changes to these values. Density. A common application of HDPE is blow-molded milk and water jugs. They are used for laminates, adhesives, flooring, linings, propellers, and surface coatings. Both LDPE and HDPE can be thermoformed, blow-molded, injection-molded, etc. Polyamide resins contain an amide group as a recurring part of their molecular chains. Note that this is for general reference and specific formulations of the material may result in changes to these values. 3. The list of HDPE products includes but is not limited to the following items: Recycling Issues The amount of plastic out there is truly staggering to contemplate. HDPE has higher strength but lower ductility, making it useful for products that must retain their form such as garbage cans. It's hydrolysis-resistant and potable water-approved with excellent abrasion resistance and electrical properties. Polyethylene resins. tmClass. LDPE is prepared from gaseous ethylene under very high pressures (up to about 350 megapascals, or 50,000 pounds per square inch) and high temperatures (up to about 350 C [660 F]) in the presence of oxide initiators. There are currently 8 different varieties of polyethylene that are commercially available including: Ultra High Molecular Weight Polyethylene (UHMWPE) (also HMWPE and HDPE-HMW) All of these different grades of polyethylene . As of 2017, over 100 million tonnes of polyethylene resins are being produced annually, accounting for 34% of the total plastics market. High Density Poly Ethylene (HDPE) is a thermoplastic polymer made from petroleum. Linear low density polyethylene (LLDPE) with the flexibility/stiffness balance and . HDPE is compatible with a wide range of products including acids and caustics but is not compatible with solvents. At the moment, the later ones aren't discussed in this guide, but a detailed list of commercial available grades is just a click away! Note that this is for general reference and specific formulations of the material may result in changes to these values. And yes, that list includes tough to bind plastics like polyethylene and polypropylene. Even at high temperatures, it is resistant to several solvents, except aromatic, halogenated hydrocarbons and strong oxidizing materials, such as nitric acid. The global plastic resins market was valued at $403.1 billion in 2019, and is projected to reach $522.5 billion by 2027, growing at a CAGR of 4.5% from 2020 to 2027. Select From Over 500,000 Industrial Suppliers. It has excellent mechanical properties such as high abrasion resistance, impact strength and low coefficient of friction. Polyethylene Terephthalate (PET) PET resin is widely used in plastics that have food contact applications, from the ubiquitous 2-liter soda bottles to salad dressing bottles to peanut butter jars. The global PE resins market is segmented on the basis of resin type, end use and region. This plastic is a thermoplastic resin of the polyester family and is commonly used in many different products, including synthetic fibers. Polypropylene resins also have good chemical resistance. Polyethylene is the most commonly used resin in the rotational molding industry. Types of Synthetic Polymers Plastic resins are broadly classified as thermoplastic (heat softening) or theromoset. Encore Poly is a leader in polyethylene bags, plastic sheeting, box or carton liners and stretch filmfor a variety of industriesand uses. Our goal is to continue to work diligently to accommodate your needs. Like many thermoplastics, polyethylene resins readily absorb moisture. Polyethylene, referred to as PE, is usually a mixture of polymers and ethylene. There are five main variations of resin types that are used for different purposes. Tougher and stronger than LDPE, high-density polyethylene is used for a broad range of products. More affordable than PP. Many different grades are manufactured, with the vinyl acetate content varying from 5 to 50 percent by weight. The chemical compatibility of LDPE and HDPE on this chart is tested at 20C: and 50C: for 7 days and 30 days (if applicable) with constant exposure. 2 Claims. The hot air picks up the moisture from the resin pellets and carries the moisture out of the hopper. High electrical and insulation properties, Better heat resistance, XLPE power cable can typically stand up to 260, Has better tensile strength and impact resistance, Higher eligibility for higher rated current applications. By using this site, you agree to our, https://www.britannica.com/science/alkyd-resin, https://www.thoughtco.com/what-is-polypropylene-820365, https://www.rodongroup.com/blog/top-5-most-common-plastic-resins, https://toagoseiamerica.com/blog/what-are-uv-curable-resins/, All About Polycarbonate Resins - Properties and Uses, All About Polyamide Resins - Properties and Uses, All About Polyester Resins - Properties and Uses, All About Polyethylene Resins - Properties and Uses, All About Phenolic Resins - Properties and Uses, All About Epoxy Resins - Properties and Uses, All About Silicone Resins - Properties and Uses, All About Polypropylene Resins - Properties and Uses, How is Plastic Made? Dow offers a broad range of polyethylene products with a variety of properties for new innovation. California Do Not Track Notice. This is a lightweight, durable plastic that is often used for frozen food bags, bottles, cereal liners, yogurt containers, etc. UHMW-PE, because of its high molecular weight, cannot flow as a liquid and must be formed with other techniques such as extruding or compression molding. University of Colorado researchers found an emission-free way to turn end-of-life plastics into resins used commonly in the electronic, automobile and aerospace industries. Resin glue is also used in construction to join a variety of building materials as well as to fill joints and strengthen unions. Polyethylene terephthalate (PETE or PET) is the most commonly used thermoplastic polymer in the world and is better known in the textile industry by the trade name "polyester.". WikiMatrix. SUPERHEXENE. This commodity plastic is produced by addition or radical polymerization. The vast majority of single serving drinking bottles are made from PET. Epoxy resins, also called polyepoxides, are a type of reactive prepolymers and polymers which contain epoxide groups. Since that time, by using different catalysts and polymerization methods, scientists have produced polyethylene with various properties and structures. Polyethylene pellets are first reduced to improve their flow and heat transfer during their moulding. Exploring LDPE grade options for food, medical or cosmetics packaging? It is a type of thermoplastic used to manufacture bags, tubing, sheeting, stretch and shrink films. Privacy Statement and This article presented an understanding of the different types of resins. Knowing what resin doesn't stick to helps get the resin to do some neat things. Name: Resin ID: Found in: What to know: Polyethylene terephthalate (PET) 1: Plastic water and drink bottles, condiment containers: Generally safe, but at high temperatures may leak a metal called . 4. It does not degrade in contact with alcohol. They are hard and dense. It is very popular all over the world. Table 2 below presents a summary of some of the physical properties of high-density polyethylene resin. (now Germany), to gain credit for inventing linear HDPEwhich Ziegler actually produced with Erhard Holzkamp in 1953, catalyzing the reaction at low pressure with an organometallic compound. For these and many other reasons, the product is growing in popularity at an amazing pace. Polyester resins are formed from the reaction of dibasic organic acids and polyhydric alcohols. Polyethylene terephthalate (or PET) PET or PETE (or the obsolete PETP or PET-P) is of the polyester family and is used in beverage, food and other liquid containers. Application May 20, 1955 Serial No. Polyethylene resins are categorized into three major groups: low density (LDPE), high density (HDPE), and ultra-high molecular weight (UHMW-PE). More particularly, it pertains to a method of cleaning metal equipment which has come in contact with molten polyethylene resin. Maywood, NJ 07607, Phone : (201) 845-4510 They are used for structural and decorative panels, adhesives, elastomers, coatings, signs, and translucent tiles. Polyurethane is a plastic that we . When fluorine treated, HDPE becomes an . Branched versions are known as low-density polyethylene (LDPE) or linear low-density polyethylene (LLDPE); linear versions are known as high-density polyethylene (HDPE) and ultrahigh-molecular-weight polyethylene (UHMWPE). In its high-molecular-weight form, it is often applied in machine components where high abrasion is present such as the guide rails for conveying equipment. LLDPE, for example, was introduced by the Phillips Petroleum Company in 1968. Because it is so inexpensive to produce, polyethylene resin is used in making plastic bags, tubes and also some toys. Suitable for heavy loads in racking systems. Polyethylene (PE) is one of the most popular thermoplastic materials. But for thicker bottles used for prescriptions or milk require a higher density polyethylene. Low-density polyethylene was first produced in 1933 in England by Imperial Chemical Industries Ltd. (ICI) during studies of the effects of extremely high pressures on the polymerization of polyethylene. Omissions? For the plastic packaging industry, polyethylene resin is commonly used. Yarns made from these fibres are woven into bulletproof vests. Polyethylene is the world's most widely used thermoplastic and is made by the polymerization of ethylene. Overall, LLDPE has similar properties to LDPE and competes for the same markets. They are strong, heat and impact resistant and have a high resistance to chemical corrosion and the penetration of moisture. Check out the list of producers , environmental stress cracking resistance (ESCR), high stiffness, low shrinkage, UV stabilized, Choose HDPE Grade Suitable for Packaging , HDPE is widely used for agricultural applications, See this exhaustive list of commercial grades to find the suitable product . [5] Products & Services shows its information for high-performance fiber, performance polymer products, composites, medical,home healthcare and IT businesses. They are very versatile when combined with other resins, and have a high film elasticity and adhesion to substrates. Other typical applications include back-up anvils for rotary slitting knives and as cutting-board surfaces. Having high resistance to abrasion, it is suitable for special applications such as the timing screws and starwheels of bottling machines, the wear pads of artificial joints, etc. Thomas uses cookies to ensure that we give you the best experience on our website. Our editors will review what youve submitted and determine whether to revise the article. Polyethylene resin is also found naturally as a by-product when petroleum is burnt. Linear polyethylene can be produced in ultrahigh-molecular-weight versions, with molecular weights of 3,000,000 to 6,000,000 atomic units, as opposed to 500,000 atomic units for HDPE. . Ethylene molecules are essentially composed of two methylene units (CH2) linked together by a double bond between the carbon atomsa structure represented by the formula CH2=CH2. You use Thomas' Supplier Discovery Platform to find Suppliers of Polyethylene Resins. Despite the strong negative effect on the industry owing to COVID-19, recent developments suggest that a solid recovery is ongoing owing to the strength of the housing . Phenolic resins are a type of thermosetting resin. Additionally, the plastic resin is resistant to thermal and aqueous degradation. Table 3 below presents a summary of some of the physical properties of Ultra-High Molecular Weight (UHMW) polyethylene resin. The high strength and robust properties of PEEK make it suitable for various applications like piston parts, compressor plates, pumps, etc. It is a naturally transparent and semi-crystalline plastic widely used as a fiber for clothing, as an effective moisture barrier with wide applicability in bottling . Melt Index. If you are using a two-part bonding adhesive you typically won't have to prepare your workpiece. PS is often combined with rubber to make high impact polystyrene (HIPS) which is used for . It is usually supplied in FDA approved food grade. Resistant to moisture and chemicals. The material has poor resistance to most aromatic hydrocarbons and oxidizing agents. 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