July 2012

Acetal in Food Processing Equipment
Components made of ZL 900 (acetal) in a sausage processing machine.

The many convenient, variable material properties of modern plastics, which are continuously refined and optimized, have lead to their acceptance as a true and innovative alternative to conventional materials. Much better mechanical and thermal properties, along with being non-toxic, have made plastic the first choice in many areas. Therefore, plastics are chosen more and more in the design of sensitive components. This is particularly valid in areas where food comes into direct contact with the machine part. In these areas, the full advantages of the plastics can be utilized. Learn more.


Inside this issue

Introduction to Acetals
Technical Advisory
Add Efficiency and Safety to Food Processing


Expand Your Knowledge

Introduction to Acetals

Acetal resins (polyoxymethylene, or POM) are engineering thermoplastics based on formaldehyde polymerization technology. These highly crystalline resins are strong, rigid and have a low coefficient of friction against metals, acetals and other plastics. They are creep resistant so they are good for parts where dimensional stability is important. Learn more about acetals in this excerpt from IAPD publication "Introduction to Plastics." The article includes information about typical applications and a property table.

Learn more.

Technical Advisory

• Acetals do not absorb a large amount of moisture and are resistant to a wide range of solvents.

• Several grades of acetals have been cleared by the FDA for food contact applications.

• Acetals are available in several viscosity ranges to meet a variety of processing and end-use needs. The higher viscosity materials are generally used for extrusions and for molded parts requiring maximum toughness; the lower viscosity grades are used for injection molding.

Add Efficiency and Safety to Food and Beverage Processing

• Polymers don't add anything to the food being processed. Metals rust and break off in extremely corrosive environments such as those found in meat and poultry processing plants; polymers such as acetal don't.

• The cost of machining plastic stock shapes is 50-75 percent less than the cost for machining similar parts out of metals.

• The low moisture-absorption characteristic of acetals permits molded parts to serve reliably in environments involving humidity variations.

More Plastics Resources

Calling all Engineers, Designers and Specifiers: Want Plastics?
The IAPD Plastics Expo is your once-a-year opportunity to experience the power of plastics, live and in person. The one-day IAPD Plastics Expo on October 25 is your chance to meet plastics experts to discuss your applications. Whether you're in aerospace, automotive, manufacturing or other markets, exhibitors can help you identify the right materials for your needs. Easy-to-use icons will guide you to the experts who can talk to you about the power of plastics for your designs.

Sign up at www.iapd.org/expo for this FREE one-day event. See you in Chicago!

Get to know your distributor

IAPD distributors are your best source for finding materials for your application. Go to www.iapd.org to find a distributor in your area. You can search by company name, location or product category.

The IAPD Magazine digital edition launches

IAPD is pleased to announce the digital edition of the Membership Directory in The IAPD Magazine. Use this convenient resource to find an IAPD member company that can help you locate and purchase the right kinds of plastics for your needs. The digital issue is easy to read on computers, laptops and tablet devices and can even be viewed on smartphones.

Follow us

International Association of Plastics Distribution
6734 W. 121st Street, Overland Park, KS 66209 USA
www.iapd.org | iapd@iapd.org
Phone: +913.345.1005 | Fax: +913.345.1006

Designing with Plastics is published by the International Association of Plastics Distribution. While every effort has been made for accuracy, IAPD encourages you to verify information with a plastics distributor to ensure you select the correct plastic products to meet your needs.