this is right from the omega site..
Dear Omega Man,
I'm having trouble with sticky carabiners and am sending a couple back to you for your inspection. I've got mostly OL 4.0 Wiregates and lately the gates have started sticking open. I've cleaned them regularly since I bought them and I've even been using White Lightning lube to keep dirt from collecting in the gate action, but they stick like crazy. Are they defective?
Bill
Ft. Collins, CO
I got your Omegalite 4.0 Wiregates today. Sure enough, they were jammed pretty good. We measured them, weighed them, inspected them and then did it again … couldn't find anything out of kilter. But, after fooling with them a while, Omega Man knows exactly what's going on here.
You say you lubed them with White Lightning, eh? I've heard other climbers complain of exactly the same problem you have and they use exactly the same lubricant. This leads Omega Man to tap his pipe against his teeth like Sherlock Holmes and deduce that White Lightning may be the likely suspect.
White Lighting (or any other paraffin-based lubes) operates by coating the device with a thin layer of waxy material. This helps to reduce the amount of dirt and grime it'll pick up. Sounds fine, but, while this may work great for bike chains (White Lightning is sold for just that purpose, in fact, and is found in bike stores) and (maybe) even camming units, they're less effective on carabiners. With bike chains, there is enough power in the mechanism (the pedal stroke of the cyclist) to break through the waxy goo with each turn. However, with a carabiner, there simply isn't that kind of spring tension to reliably return the gate to the notch as that waxy buildup occurs. And, it should be noted that-despite the claims that paraffin-based lubes don't attract dirt-Omega Man removed a lot of crapola from the works of your biners. ALL lubricants pick up dirt and grime to one degree or another.
To fix the rest of your krabs, do what we did with the ones you sent back: I boiled them in water to melt the paraffin and liberally sprayed WD-40 on them to dissolve and remove any residual lubricant, dirt or grime. Then we gave them a good brushing with an old toothbrush at the hinges. After that, we shot them with a little silicone spray lubricant. I'm sending them back to you and you'll see, they work perfectly now.