What is an O-ring?

This article is a basic introduction to O-Rings and explains what an O-ring is, how it seals, compounds and hardness'.

Shelf Life & Proper Storage of Elastomeric Seals

This article explains Aerospace recommended Practice, ARP5316 and the history of rubber age control and storage of elastomeric O-rings.

Understanding ASTM D2000 (SAE Recommended Practice J200)

This article explains how to understand the ASTM D2000 Line call outs. Example: "M2BG710 B14 EA14 EF11 EF21 EO14 EO34 F17."

What is Friction and What Does it Have to do with Rubber?

This article gives an explanation of frictional forces, what causes friction and methods used to reduce the coefficient of friction.

Elastomer Hardness Gages, Type A vs. Type M

This article gives an explanation Type A hardness gage vs. the Type M Micro Hardness gage

Physical Properties of Rubber, Part 1 of 2

In this article we discuss the different types of physical properties that you will see in the ASTM D2000 Specification, "Standard Classification System for Rubber Products in Automotive Applications."