Apple Rubber takes pride in manufacturing American-made products for its country and helping to protect service personnel ...

But this doesn't always work and O-rings can pop out. The Trap-Seal, a trapezoidal O-ring from Parker Hannifin Tube Fittings Div. (parker.com/tfd), eliminates this ...

The trapezoidal shape is said to eliminate the possibility of the O-ring popping out, unlike standard round-shape O-rings that rely on being pinched by the groove retaining ring for seal retention.

ATR Spectroscopy can be used for distinguishing release agents on O-rings. During the O-ring manufacturing process, O-ring molds are coated with release agents or the release agents are imbedded in ...