Tech Talk Blog

Rulon J Eliminates Stick/Slip in Military Rifles

Posted by Dave Biering

Oct 2, 2014 9:30:00 AM

Rulon J Eliminates Stick/Slip in Military RiflesWith a client base covering more than 70 industries, there is never a dull day in the TriStar labs. But occasionally, a unique application comes along that stands apart from the rest. This was the case when we solved a “sticky” situation for a 50-caliber semi-automatic rifle. The challenge was in sourcing a lightweight, durable trunnion bearing that would allow for smooth shooting and movement of a remote weapon in an active military zone. And Rulon J fit the bill.

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Topics: Rulon J, Military

Tech Tip: How do I measure the surface tension of plastics?

Posted by Dave Biering

Sep 30, 2014 9:30:00 AM

Measuring Surface AngleMeasuring surface tension can be done quite easily in the lab with the use of a goniometer (or surface contact meter). In fact, this is a key service of TriStar’s Surface Modification Division

The process begins by first measuring the baseline contact angles to determine the right surface modification method. Since the surface tension of liquids and the surface energy of materials must be matched, we add a droplet of water to the component to get the best reading. 

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Topics: Surface Modification

CJ Bearings Provide Smooth Sailing to Marine Navigation

Posted by Dave Biering

Sep 25, 2014 9:30:00 AM

CJ Bearings Provide Smooth Sailing to Marine NavigationAn interesting application for marine navigational equipment came through our lab recently when we partnered with the manufacturer of a self-steering rudder. This auxiliary helm application was the perfect match for CJ bearings, which are among the best for chemical and salt-water tolerance.

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Topics: CJ Bearings, Self-Lubricating Bearings, Marine Bearings

Tips to Bond Silicone Rubber to Aluminum

Posted by Dave Biering

Sep 23, 2014 9:30:00 AM

Plasma cleaning of metal parts dramatically increases the success of overmolding.We’ve had a few questions lately about the best method of bonding rubber to aluminum before overmolding. It seems this bonding combination poses a tough challenge. And in many cases, we’re finding that companies want to achieve better bond strength without using harsh solvents. So how can you achieve one without the use of the other? Plasma cleaning is the answer.

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Topics: Surface Modification, Bonding, Plasma Treatment, Rubber

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