Recent content by christensent

Ok, if it is of any help, it is a custom homemade dual-chamber air strut on a modified Jeep Wrangler utilizing back-to-back u-cup piston seals.

I work on super custom suspension things and usually don't mention the "what" as I usually find it to act as a distraction. It shouldn't matter, the topic is how to reduce stiction on a urethane U-cup piston seal in a hydraulic cylinder. It's a home-made custom application. As mentioned above...

That is the base oil I am using. It is quite good on friction, but I can easily make it perform much better on my test rig by adding things like CAT hydraulic additive (stiction eliminator) which is basically just 3-hydroxy-2,2-bis(hydroxymethyl)propyl oleate according to MSDS. Since I've had...

In this case, stiction is the breakaway-friction induced by the back-to-back urethane u-cup seals on the piston (completely separating the upper and lower chamber of the hydraulic cylinder damper), which are operating at about 350PSI steady state (it is an air spring so it sits at this pressure...

By stable, I mean it must not swell or interact with my seals (worried about this with stuff like amine based dispersants), and also needs to not break down, sludge, etc. under pressure and shear seen in a hydraulic damper. Yes I would be using a fraction of a percent of nano-particle and at...

I'm working on getting absolute minimum stiction in a high pressure hydraulic off-road suspension system with u-cup seals. I've had good luck with polar boundary film additives but also want to try adding nano particles of MoS2, WS2, etc. in 70nm size (I realize larger particles are mostly snake...