APG Knowledge Center

May 15, 2022

O-rings and the Food & Beverage Industry

The CDC estimates nearly 48 million people get sick, 128,000+ are hospitalized, and 3,000+ people die from foodborne illnesses each year in the...

viton and buna o rings against black and blue background

May 1, 2022

Fluoroelastomer vs Nitrile: Which elastomer works best for your...

Updated: November 2023

FKM (Viton™) and Nitrile (NBR) are two of the most used elastomers for sealing applications. These materials are suited for...

July 24, 2021

What is Durometer?

Updated October 7, 2021

What is Durometer?

The durometer is a measurement of the hardness of a piece of rubber. However, there are a few...

July 18, 2021

Getting To Know Materials: Nitrile

Getting To Know Materials: Nitrile

Trade Names: Buna-N, Chemigum (Goodyear), Ny Syn (Copolymer), Krynac (Polysar), Hycar (Zeon Chemical),...

July 8, 2021

Getting To Know: Backup Rings

Back Up Rings

Backup rings are commonly installed with rubber o-rings to help improve their performance. These rings are designed to limit...

April 1, 2021

The O-Ring: More Than Meets the Eye

Most of us benefit from o-rings in our everyday lives without even realizing it. The o-ring is a simple product but is fundamental in the...

March 15, 2021

Understanding O-Ring Materials and Compounds

Keeping o-rings on hand so you have them when you need them is a great idea. However, before you buy you should be certain that you understand some...

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APG: Pioneering American Excellence in Coupling Solutions Since 1933

APG: Pioneering American Excellence in Coupling Solutions Since 1933

Knowledge Base

O-rings and the Food & Beverage Industry

Fluoroelastomer vs Nitrile: Which elastomer works best for your...

What is Durometer?

Getting To Know Materials: Nitrile

Getting To Know: Backup Rings

The O-Ring: More Than Meets the Eye

Understanding O-Ring Materials and Compounds

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