Many of us with Costar stabilizers have turned to grease as remedy for jittery space bars and squeaking keys. In my experience, the application of stabilizer grease also deadens the sound of stabilized keys while providing the user with a more "solid" feedback when bottoming out.
This review discusses the first product I have seen marketed specifically as a keyboard stabilizer lubricant; Elite Keyboards "EK MechLube" stabilizer grease.
Some of you may have used white lithium grease on your keyboard before. If you take white lithium and rub it between your fingers it starts to thin out a bit. In contrast, the EK Mechlube silicone based lube does not. This stuff is highly viscous, and I learned the hard way that this product should not be over applied. Honestly the texture is almost sticky. Over-applying EK Mechlube will result in your stabilized keys becoming dead, sluggish, and lacking response. I am speaking from experience, as I had to remove my stabilized keys and remove some of the silicone grease. I achieved the best results by putting a bead in the middle of the plastic key insert, and spreading the grease around evenly with a tooth pick. This method allowed me to fully coat the stabilizer contact point while avoiding any globbing. Globbing this stuff on is bad, and will result in sticky keys. For good measure, I also put a tiny of grease down where the stabilizers lock into the keyboard. Again, only a small amount of the product is necessary here.
Once correctly applied, this is a great stabilizer grease. Key presses are solid, and a satisfying "thud" of a sound is now present. And best of all, no space bar rattle. I also appreciate the fact that EK Mechlube is completely plastic safe unlike some petroleum based white lithium products. The applicator is conveniently curved for ease of use, which is a plus.
The Elite Keyboards website states: "Only half a grain of rice worth of grease is needed (if that), so the 1cc of MechLube provided should be plenty for a whole collection of keyboards!"
Given the nature of EK Mechlube, this statement is completely true. You will use much less of this per application in comparison to white lithium. $6 per tube appears to be a really great value. I would encourage you guys to give this stuff a shot.