The word Delrin is a trademark for a particular type of acetal polyoxymethylene. This thermoplastic can be used in place of metal in commercial, industrial, and residential applications. POM is the abbreviation for this homopolymer and copolymer plastic product. These engineering thermoplastics have high strength and outstanding dimensional stability. Read More…
Leading Manufacturers
All Plastics and Fiberglass, Inc.
Mobile, AL | 800-226-1134All Plastics and Fiberglass performs fabrication for fiberglass and plastics. Among the standard products we produce are ducts, grating, structural shapes, pipe hangers and tanks. We do custom fabrication on tanks and pipe hangers. We also make prefabricated piping systems, handrails and more. We have built a reputation on high quality and superior service for more than two decades.

Cope Plastics, Inc.
Alton, IL | 800-851-5510Cope Plastics maintains one of the industry's largest inventories, stocking a wide variety of plastics to meet our customers’ needs for engineering materials, sheet plastics, specialty industrial products and tubing. We assist with design and we manufacture production parts in our ISO-certified facilities.

San Diego Plastics, Inc.
National City, CA | 619-477-4855San Diego Plastics, Inc has a huge selection of plastic materials. Call us today for plastic sheet, rod, tube, film, expanded foam sheet, corrugated sheet, boards, panels and structured sheet. An assortment of acrylic, polycarbonate, PVC, polypropylene & polyethylene in various colors, patterns, textures, thicknesses & grades.

Auburn Plastics & Rubber
Indianapolis, IN | 317-352-1565Since 1967, Auburn Plastics & Rubber has been a leading manufacturer of plastic and rubber products. We are a family-owned company built on creating relationships with our customers and manufacturing high-quality products. Auburn Plastics & Rubber is your one-stop shop for all your plastic needs.

CS Hyde Company
Lake Villa, IL | 800-461-4161CS Hyde has been providing high-end plastic materials since our founding in 1996, and has become a leading distributor and converter to a wide variety of markets. Materials we have available include Teflon Fluoroplastic, PTFE, Mylar®, Kevlar®, and more. We utilize the most high-tech converting equipment to provide superior products to our customers in a short time frame. It is our continuous mission to provide the highest quality products, innovate new solutions, and exceed expectations.

Professional Plastics
Fullerton, CA | 888-995-7767Supplier of engineering plastic materials—plastic sheets, plastic rods, plastic tubing & film. Products include Delrin®, Nylon, Teflon®, Vespel®, Torlon®, PEEK, Techtron®, PPS, Semitron®, Ultem®, PVDF, PVC, Acrylic, Polycarbonate, PCTFE, PFA, FEP and more.


Design of Delrin Manufacturing
Anhydrous formaldehyde reacts with alcohol to create semiformal, the precursor of homopolymers. This material is dehydrated before being polymerized by ionic catalysis. Polyoxymethylene is then stabilized through a reaction with acetic anhydride. Formaldehyde is also used in copolymers, although it is handled differently. Formaldehyde is changed by acid catalysis into trioxane, which is then dried and distilled to produce Delrin copolymers.
Both kinds of plastic are frequently offered as hot, granular forms that have been melted. The material can then be shaped into the required shape using injection molding or extrusion techniques used by Delrin producers. When choosing a mold, remember that polyoxymethylene can shrink by as much as 2% during fabrication.
For distribution, manufacturers use rotational molding and blow molding when making stock shapes, such as plastic rods, films, and sheets. Delrin manufacturers frequently use auxiliary operations like turning, milling, drilling, and precision machining to generate application-specific parts, even if rods and sheets may be the end output. Delrin is a thermoplastic. Therefore, it may be melted, remolded, or extruded as necessary.
Assembling Delrin Components
When selecting a production material, keep the component assembly in mind. There are numerous ways to assemble Delrin components. Delrin components can be assembled and disassembled using self-tapping screws, snap-fits, and press-fits, while permanent assembly procedures include welding, adhesives, and riveting. Adhesives can be used for prototypes or limited production runs of a large, complex assembly, but they lack the strength required for end-use performance. If performance is crucial, employing glued joints is advised. Manufacturers use sandpaper or chemicals to clean and degrease surfaces for better assembly results.
Benefits of Using Delrin
- Delrin provides a harmony between the remarkable qualities of metals and polymers. As a result, Delrin is the perfect material for high-impact and large load-carrying applications.
- Delrin has superior dimensional stability. It can maintain its original shape and dimensions when exposed to temperature and humidity changes, making it especially helpful in applications that depend on dimensional changes, including gears and bearings.
- Due to Delrin's resistance to moisture, it can perform in situations with high moisture and humidity levels while maintaining its mechanical and physical qualities. A few examples of parts that can be improved using Delrin are pumps, valves, and plumbing fixtures.
- Delrin is exceptionally durable under high stress because it has tremendous impact and creep resistance.
- Delrin is chemically resistant to fuels and solvents and is particularly suitable for piping, tank, and vessel fittings in the petrochemical industry because it is chemically resistant to fuels and solvents. In addition, Delrin functions well in petroleum-based applications.
- Delrin is an easy product to fabricate. Despite its great strength, it may be easily cut into any required shape using various tools.
- Delrin has outstanding wear and abrasion resistance. The material is also well known for its resistance to wear and abrasion. This property is particularly important in gears or applications with regular friction. For example, Delrin fittings can be used in abrasive material-conveying piping systems.
Application Of Delrin
Many machinists favor Delrin because it is simple to machine with 3- and 5-axis tools. Additionally, it can be 3D printed and injection molded, making it a flexible material with many uses. Any industry that requires high-performance engineering components, including the automotive and consumer electronics industries, uses Delrin components.
High-performance components like gear wheels, housings, screws, nuts, and pump components are often made of Delrin. Delrin can also make electrical engineering components like connectors, electronic parts, coverings, and insulators. Door locks and articulated shells are only two examples of car parts made from Delrin. Delrin is also used in various medical devices and goods, including insulin pens and metered-dose inhalers.
Delrin is frequently used to replace metal components. Due to its composition and qualities, Manufacturers can use Delrin to satisfy various customized client requirements because it is offered in a range of special grades.

Manufacturers of Delrin can provide upgrades to boost its functionality. Modifications may include thermal and oxidative stabilizers, lubricants, and fillers. These modifications improve Delrin’s inherent properties and make it resistant to moisture, chemical corrosion, solvents, fuels, and creep. Stock forms are widely accessible and can be used directly as the finished product or processed further to produce safe locks, gears, bindings, bearings, fan blades, nuts, screws, wheels, kettles, and other items. However, manufacturers shouldn’t use Delrin in very acidic environments because it will quickly deteriorate.
