Very thick, probably around 50-60. Very sticky, which sucks, but that means it stays where you put it and doesn't splatter. Parts experience friction, but in some places do not need to be lubricated. Just rub and then hand wipe and they get very slippery and dry! I use this for my AIR Arms and Airsoft plastic, metal and rubber parts, mainly o-rings and valves in CO2 and vapor gas magazines. Works very well in AR and other high recoil open breech systems. It freezes and spits chunks into your weapon when you use it. The best thing I have found about this product is that if you wipe and then polish, it makes metal and plastic really smooth. As far as protecting my o-rings and plastic, time will tell, but it's going to make them slippery as hell!